CN108196307A - Sine wave phase swashs the technical solution of electricity - Google Patents
Sine wave phase swashs the technical solution of electricity Download PDFInfo
- Publication number
- CN108196307A CN108196307A CN201711437427.8A CN201711437427A CN108196307A CN 108196307 A CN108196307 A CN 108196307A CN 201711437427 A CN201711437427 A CN 201711437427A CN 108196307 A CN108196307 A CN 108196307A
- Authority
- CN
- China
- Prior art keywords
- phase
- frequency
- sine wave
- signal
- electricity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/02—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current
- G01V3/06—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with propagation of electric current using ac
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/38—Processing data, e.g. for analysis, for interpretation, for correction
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Geology (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
" sine wave phase swashs the technical solution of electricity " is scientific method and Applied research fields, the New Geophysical Prospecting Techniques exploitation of geological prospecting in terms of land resources, belong to the phase IP branch of frequency-domain IP method, measurement parameter is unifrequency or the absolute phase and apparent resistivity of multi-frequency.This programme, which is based on narrow-band filtering, db-loss interference signal, single frequency sinusoidal wave to filter the compensable characteristic of physics phase shift greatly, sine wave signal is locked with microcontroller, it directly carves and reads phase, the analog acquisition amplitude at sine wave wave crest, there is simple and fast and economical and efficient, geologic prospecting and the detailed survey of various non-ferrous metals are adapted to, and is suitble to the mine physical prospecting of disturbance of industry frequency and DC influence of taking a stroll by force.It solves the high benefit at low cost of current spectrum induced polarization and phase IP using the program, be not suitable for the disadvantage of geologic prospecting and unsuitable mine physical prospecting, the quick and convenient means of power technology application can be swashed as existing frequency domain, applied in geological prospecting and mining production.
Description
First, technical field
The present invention " sine wave phase swashs the technical solution of electricity " belongs to the technological development of land resources scientific method and application study is led
Domain is the new method of the geophysical prospecting technology application of geologic prospect, adheres to the phase IP branch of frequency-domain IP method separately.
2nd, technical background
" sine wave phase swashs the technical solution of electricity ", abbreviation sine wave phase swashs electricity, measures depending on absolute phase ψ s (mrad) and regards
Electricalresistivityρ s (Ω m) is the new method of inventor's independent studies, has independent property right.Frequency domain swashs electricity, swashs comprising frequency spectrum
Electricity and phase IP Liang Ge branches, are the new technologies gradually promoted in recent years, but current application is not mature enough, and is suitable only for
Desk research and geology detailed survey and evaluating to other Geophysical Anomalies；Sine wave phase swashs electricity, can solve current spectrum induced polarization
High benefit at low cost, unsuitable geologic prospecting and the disadvantage of unsuitable mine physical prospecting with phase IP, will be used as existing frequency
The quick and convenient means of power technology application are swashed in domain, applied in geological prospecting and mining production.
（One）IP of time domain (TDIP)
IP of time domain is using the forward and reverse launch power of equally spaced pulse square wave, and receiver measures power supply primary field, calculates
Go out electricalresistivityρ s (Ω m), the secondary electrical field of sensing is excited in the instantaneous measurement geologic body then to disappear in primary field, by opposite
After the normalized of primary field amplitude, parameters of electrical induction η s (%) are obtained；The IP of time domain of early stage, A, B electrode power supply transmitted pulse width
The signal of 10S (second) period 40S, since there are the influences such as telluric electricity field and natural potential SP, receiver receives △ UMNSignal, behaviour
As when need manual compensation, therefore the instrumentation of spot measurement most takes 1 minute soon, there is the optional 2S/ of power supply pulsewidth in the later stage
The instrument of 4S/8S, period 8S/16S/32S, receiver manual compensation add automatic compensation, and field measurement speed is accordingly accelerated.
IP of time domain provides a large amount of induced polarization anomaly for geological prospecting, looked in non-ferrous metal it is fruitful in ore deposit, but
It is, because of graphitization (carbonaceous goes bad by magmatic hydrotherm) interference, still to there is a considerable amount of induced polarization anomalies, doubtful for copper, lead, zinc
During sulfides ore deposit, authentication failed, therefore applying for IP of time domain meets with bottleneck in mineral is looked for visit.
（Two）Spectrum induced polarization (SIP)
The principle of spectrum induced polarization derived from complex resistivity existing for rock ore bearing strate, passes through according to W.H .Pelton etc. to a large amount of rocks
Specimen of ore and the frequency characteristic description of measurement and Cole-Cole model to sharp electrical effect of appearing, complex resistivity expression formula are：
Wherein:ρ0Represent resistivity during zero frequency, m, τ, c represent polarizability (or charge rate), time constant and frequency respectively
Related coefficient.
Theoretically spectrum induced polarization (SIP) will be 10-3--n102It is observed in the wide area of Hz, but in practical applications, signal source
The Frequency point of limited quantity can only be emitted, with the domestic common multi-functional induced polarization instruments of V-6/V-8 (Canadian phoenix company) and
II multi-functional induced polarization instruments of GDP-32 (Zhong Shi companies of the U.S.) are representative, during spectrum induced polarization field work, generally in 0.0313--
18--27 frequency point transmitting of selection and reception, receiver first pass through and Hz noise are believed to received signal in 256Hz wide-bands
Number trapper processing, then again by transmitting square wave logical sequence, done in wide band range signal amplification and A/D acquisition,
By Fourier transform and DSP operation, zero-frequency electricalresistivityρ s is obtained0Electricalresistivityρ s, charge rate (intensification rate) ms with each frequency point,
Timeconstantτ s, frequency correlation coefficient cs.
According to the experiment of spectrum induced polarization and outdoors practice, metal sulfide mineral and mineralising are high polarization, low resistance in geology
Rate, medium while constant (τ s=0.1-2s), small frequency related coefficient (cs<0.2), fine and close rich ore time constant (τ s=2-
10s), graphite be low-resistance, height intensify, large time constant (τ s>N10s), larger frequency correlation coefficient (cs>0.3), made with this
The foundation of ore deposit is looked for for physical prospecting explanation, preferable effect is achieved in practice, and to distinguishing ore bodies exception and the stones such as copper, lead, zinc
Black interference method is effective, solves the bottleneck problem of IP of time domain, wherein, the crystalline particle size of timeconstantτ s and ore body
Correlation, the smaller more fine and close then τ s values of crystalline particle are bigger, the two-dimensional cross-section of electric sounding τ s isopleth exceptions, can be good with orebody shape
Good corresponding, indicating effect is apparent.
Due to spectrum induced polarization technical sophistication, instrument signal channel requirements precision low drifting, signal A/D acquisition requires high-precision
Degree, Digital Signal Processing needs DSP operation, so equipment cost is higher；And signal path filters out Hz noise using trapper,
Not only Hz noise compacting is not thorough (V-8 instruments compacting power frequency 50Hz/60Hz attenuation -40dB), and filtering can cause it is close
There is physics phase shift in Frequency point, and measurement error is caused to increase；Frequency point is mostly used duration used in sweep measurement, with V-8 instruments frequency sweep 25
For a frequency point, a rotation automatic data collection needs 35 minutes, in addition running the back works such as pole, completes spot measurement, used
Time 35--60 minute；And receiver acquisition very low frequencies signal, it is influenced by telluric electricity field and natural potential, electrode grounding requirement
It is required that all stringenter than IP of time domain and phase IP, difficulty of construction is very big；Factors cause spectrum induced polarization that interior is suitble to grind
Study carefully and generally investigated with geology detailed survey, the physical prospecting for being not suitable for large area.
（Three）The present situation of domestic existing phase IP
The expansion of Ke Er theory complex resistivitys formula has real number and imaginary number two parts, in alternating electric field, deposited between real and imaginary parts
In phase difference, performance is swashed in the wild in electric physical prospecting, the potential difference △ U measured in geologic bodyMNCompared with emission current IABThere is certain phase
ψ after steric retardation, when one timing of frequency, sharp electrical effect is stronger, and delay phase ψ is bigger；The delay phase of a certain frequency of geophysical measurement claims
(absolute) phase IP of certain frequency measure, measure the relative mistake of different frequency phase, referred to as relative phase difference induced polarization measurement.
Domestic common phase IP at present such as FX-1 face showing good fortune instrument, measures absolute phase, and WSJ-3 phase IP instrument measures
Relative phase difference, their all frequency of use coherent techniques emit source signal with the form lock-out pulse of constant-current source, receiver will
The synchronizing signal (sine wave) and synchronized orthogonal signal (cosine wave) of electric current are multiplied integral filtering again with measuring signal respectively, must answer
The direct current real variable of variable and direct current dummy variables, then be divided by tangent of negating again of imaginary and real component obtain phase, real dummy variables root mean square
Operation obtains complex amplitude, and formula is as follows：
FX-1 type face showing good fortune instrument is the intermediate typical case that IP of time domain swashs electricity development to frequency domain, its continuous tranmitting frequency is less than
The single-frequency rectangular wave (symmetrical square wave) of 0.25Hz, because without the off interval of IP of time domain, the time efficiency of measurement has
Raising, measurement parameter swashs the absolute phase ψ of an electric Frequency point for time-domain intensification rate η s, electricalresistivityρ s and frequency domain
s.Since FX-1 is 10-1Hz frequency ranges measure, and the property for surveying intensification rate η s and phase ψ s is suitable, and useful information is promoted seldom, and
The bottleneck problem as IP of time domain is faced, no essential meaning is interfered to distinguishing sulfide mine exception and graphite.
WSJ-3 phase IP instrument is the advanced new phase induced polarization instrument of current domestic contrast, it is in 0.03125--8Hz ranges
9 frequency points of interior division, i.e., { 8Hz, 4Hz, 2Hz, 1Hz, 0.5Hz, 0.25Hz, 0.125Hz, 0.0625Hz, 0.03125Hz }, and
Five groups are divided, every group, using adjacent five frequency points as one group, is combined by pseudo-random sequence, the pulse hair in the form of positive and negative constant current square wave
It penetrates.Signal path is received after the filtering to power frequency interference signals, to the broadband signal of five frequency points, Fen Shilu does coherent detection
Processing, wherein each frequency point has respective synchronization and orthogonal two-way coherent signal, is acquired by A/D, actual situation variable division
And arctangent cp cp operation, obtain the phase and amplitude of five frequency points.The measurement result of WSJ phase IPs, passes through the opposite of high band
Phase difference and the relative phase difference comparison with low-frequency range, can distinguish sulfide exception and be interfered with graphite, solve time-domain and swash
The bottleneck problem of electricity, in the wild using preferable in physical prospecting；It but, be in wide-band since WSJ induced polarization instruments are as frequency spectra induced polarization instrument
The interior acquisition multifrequencies aliasing signal such as very low frequencies, electrode grounding requirement difference and the big major defect of field labor intensity do not improve,
And instrument eliminates the AC signal after frequency coherence with integral filtering, and this method causes to measure because of extremely low audio signalprocessing
Period is long, and the slow-footed improvement space very little of geophysical measurement, although instrument cost is in a slight decrease, comparison spectrum induced polarization does not have skill
Art advantage.Compared to IP of time domain, the phase IP representated by WJS is still principle complexity, anti-Hz noise energy force difference, connects
Ground condition is poor, the measuring point period is long, and the practicability in field needs to be further improved.
（Four）The reference of external phase IP instrument
The country has at present does what phase IP measured using import instrument, such as II multi-functional electric device of V-8 and GDP-32, actually
Although they do phase IP measurement, but still referred to as CR (complex resistivity) or SIP (spectrum induced polarization) is measured, because either surveying
It measures the phase IP of ψ s or measures ρ、M, the spectrum induced polarization of τ, c, it is defeated as data acquisition modes with data processing are
Go out spectrum induced polarization or phase IP, simply because the way of output of software is different, do not have in equipment cost and project cost
Difference, such as V-8 instruments, most fast single phase for surveying a frequency point 1Hz take time 1 minute, to survey multiple frequency points in actual use,
Accumulative total time-consuming is as spectrum induced polarization, so the phase that geologic prospecting property is done using the multi-functional electric device of import type is swashed
Electrical measurement, it is economically very not cost-effective.
The last century 60's, the former Soviet Union develop phase IP instrument earliest, and " Kazak geophysical instrument " factory was once
И Н φ A3 B Л cell on wheels and the light base stations of B Л-Ф are developed, the former can complete the absolute phase in electric field and magnetic field
It measures and the relative phase of two kinds of frequencies measures, the relative phase that the latter can be only done two kinds of frequencies measures.
The sharp electricity transmitting of Soviet citizen uses silicon-controlled pure-tone pulse square-wave transmission, using the primary of square wave and three times in measurement
The measuring device or B Л-Ф portable receivers (plug-in portable select frequency oscillation device) of harmonic wave, either cell on wheels, have
Two signal paths, while two Frequency points of frequency-selecting are filtered, the fundamental frequency of a frequency-selecting transmitting square wave simultaneously suppresses the humorous three times of square wave
Wave, another frequency-selecting triple-frequency harmonics simultaneously suppress fundamental frequency.The consequential signal of frequency-selecting with manual switch, can be respectively connected to detecting circuit
(such as diode rectification and filtering), is shown and reading with simulated pointer table, available for signal monitoring and calculates resistivity.
When measuring relative phase difference, Soviet citizen has used a kind of method of approximate calculation, is approximately equal in fundamental frequency cosine value
1 and fundamental frequency sine value and frequency angle of chord approximately equal under conditions of, with a kind of special means, calculate triple-frequency harmonics with it is primary
The relative phase difference of fundamental frequency harmonics, two frequency selection signals are first respectively shaped as square wave, are compared to each other respective square wave edge later
Sequential measures relative phase under conditions of quartz (controlled) oscillator and pulse simulation count；During relative phase difference measurements, do not need to send out
Penetrate synchronous base.When cell on wheels carries out absolute phase measurement, a frequency point is measured every time, for square wave fundamental frequency or humorous three times
Wave, the synchronous logic of wireless transmission pass through in transmitting base station and the frequency-selecting that emission current samples are handled；Receiver is measuring absolutely
During phase, wireless synchronization is first imported into receiving channel, frequency-selecting output and synchronizing signal are compared, measure the phase truth of a matter, Ran Houzai
Measuring point signal is imported into receiving channel, measures the absolute phase compensated by the truth of a matter.
The phase IP of Soviet citizen measures, and the method used simulates counting and mechanical, hand-driven in line with quartz oscillator
Cumbersome switching is switched, under the conditions of the electronic technology in that age, is made that more advanced equipment, has been carried out in the wild a large amount of
Successfully practice, and transmitting and reception in phase IP, a variety of supplying measure installation methods on, carried out grinding for system
Study carefully, A.B. Ku Likefu and E.A. She meter Ya Jin are collaborateed《Phase induced polarization method》, the development to China's phase IP, risen weight
It pushes and does use.The principle of Soviet citizen's phase IP understands, method is simple, equipment is heavy, measures based on empirical equation, makes
With very backward electronic technology, due to the difference in epoch, also fall behind than existing IP of time domain, be placed on now completely
It is inadaptable；But the characteristics of method is simple and sine wave phase swash electricity the unity of thinking, outdoors practice as a result, to sine wave
Phase IP has important reference function.
（Five）Retrieval conclusion
" sine wave phase swashs the technical solution of electricity ", except inventor's newly submission ' physical prospecting and change are visited ' one, periodical is introduced " just
String wave phase swashs electricity " except, other documents have no related report.
" sine wave phase swashs the technical solution of electricity ", including ' sine wave emits to be received with single channel phase IP instrument ' son side
Case and ' symmetrical square wave emits to be received with triple channel sine wave phase induced polarization instrument ' subscheme, the method for former Soviet Union's phase IP, with
The present invention second subscheme have it is similar, with first subscheme without intersection.The method of Soviet citizen is compared by dual signal
Approximate processing, the present invention are that microcontroller Frequency Locking accurately carves reading, the former can only handle two-way relative signal, and one-shot measurement can only
A phase parameter is obtained, the latter can handle three road signals simultaneously, and one-shot measurement obtains three absolute phase parameters；The former did not both have
There is the important feature of the big db-loss interference signal of narrow-band filtering, also there is no ' sine wave phase swashs electricity ' this concept, the latter
In line with advanced and mature electronic technology, it is systematic propose sine wave phase swash electricity measurement method, using single frequency sinusoidal wave as
The feature that the transmitting of main feature, particularly sine wave receives the first subscheme is apparent；" sine wave phase swashs the technical solution of electricity "
It is to swash electric application for frequency domain domestic at present, the improve and perfect measure invented in terms of quick measurement and facilitated application,
Belong to new technology development and the technology difference of the former Soviet Union clearly.
3rd, the content of patented invention
According to the present situation of current spectrum induced polarization and phase IP, " sine wave phase swashs the technical solution of electricity " will solve the problems, such as
It is：<1>Simplify measuring principle, reduce equipment cost,<2>The labor intensity of physical prospecting is reduced, improves production efficiency,<3>Excavate phase
The phase spectrum changing rule of electricity is swashed in position, finds and obtains more geophysical prospecting informations with minimum input,<4>Open up the application of phase IP
Range increases scheme and applies potential economic benefit.
There are many not foot point of spectrum induced polarization and phase IP at present, but the focus of contradiction is mainly reflected in ' very low frequencies signal
Measure ', because of very low frequencies, cause：It (takes a stroll 1. a large amount of interference signal cannot exclude including telluric electricity field, natural potential, industry
DC influence, electrode intensify uneven etc.), 2. grounding requirement is poor, and arrangement electrode, which needs to deep-cut hole, pours brine, and labor intensity is big,
3. instrumentation measurement period is long, instrument precision low drifting is 4. required, it is of high cost.Therefore frequency studies are the work weights of the present invention
Point.
According to the research of forefathers, complex resistivity ρ postpones phase ψ low as the frequency f of alternating electric field increases and reduces
Approach and zero when frequency and high frequency, in the logarithmic coordinates of frequency, with the difference of different geologic body crystalline particle shapes, τ values
All different with c values, the frequency fc of corresponding delay phase peak ψ max is different, and peak value both sides, phase number changes like normal distribution；
According to specimen of ore test statistics, the fc for loosely infecting shape pyrite is more than 10Hz, and thready pulse or bulk infect sulfide ore body
Fc ranges are probably between 1Hz--10Hz, and the fc of massive sulphide ore deposit is in 1Hz or so, the fc of compact massive sulfide ore shoot
It is left in 0.5Hz, and the frequency ＜ 10 of graphite phase peak fc-2Hz, in the available frequency band of electricity is swashed, always the phase of graphite with
It the increase of frequency and reduces, when frequency is 10-1Near Hz, the phase size difference of graphite and other metal sulfide ore bodies is not
Greatly, as >=1Hz, the phase of graphite has significant ratio to reduce.Therefore, according to looking for ore deposit target different, the practical physical prospecting in field
Can be targeted, the Frequency point that phase IP measures can work near the fc of corresponding target geological body, and scene can
The measurement of other Frequency points is greatly reduced, the frequency point for particularly avoiding extremely low frequency measures, and can not only improve work effect
Rate, can be with lowering apparatus cost, and reduces the grounding requirement of electrode, reduces the labor intensity of field work, this is to improve mesh
The break through direction of preceding spectrum induced polarization and phase IP Shortcomings.
According to the theoretical calculation of Zhongnan Polytechnic Univ and experiment, attached drawing is seen, wherein Fig. 2 is the theoretical calculation of certain sulfide mine
Spectrum curve, Fig. 3 are the theoretical calculation spectrum curve of graphite, and Fig. 4 is the experiment spectrum curve of certain pyritic sulfur compound, and Fig. 5 is
The experiment spectrum curve of graphite, in 32Hz frequencies below sections, metal sulfide body intensify frequency spectrum delay phase absolute value with
The increase of frequency and increase, and the delay phase absolute value of graphite reduces with the increase of frequency, is 0.1Hz or so in frequency,
The two is almost equal, and when frequency is more than 10Hz, contrast is huge；The IP of time domain of conventional uses equally spaced pulse
The forward and reverse power supply of square wave, width are respectively 2S, 4S, 10S, and since the amplitude of fundamental frequency in square wave accounts for main body, these fundamental frequencies are in 0.1Hz
Left and right, the result of physical prospecting cannot effectively distinguish sulfide mine body and the non-ore deposit of graphite carbonaceous, result also with Fig. 2, Fig. 3, Fig. 4, Fig. 5
Display is consistent.
Therefore, in the case where requiring that graphite is avoided to interfere and reduces field physical prospecting labor intensity, the measurement of phase IP
Frequency band is preferably between 1Hz--50Hz, and between, frequency is lower, and measuring signal amplitude is bigger, and signal-to-noise ratio is higher, but field work
Making efficiency can be lower；Frequency is higher, and the electromagnetic interference in measurement is bigger." sine wave phase swashs the technical solution of electricity ", institute's frequency-selecting
Section is 1Hz--12.5Hz, meets theory demands, and it is practical to meet field physical prospecting.Although phase IP selection frequency tends to prediction mesh
Target fc, but be exactly not necessarily fc, it is determined according to ore deposit target, geological environment and working efficiency is looked for integrate；Relatively low frequency is fitted
It closes and finds reguline metal sulfide, but too low frequency, working efficiency can be reduced, and increase labor intensity, frequency height a bit, is fitted
Close find infect shape sulfide and with the noble metals such as the gold and silver of pyrite association；According to the regularity of distribution of sharp electric phase spectrum, pass through
Close to the phase measurement of three or more the frequency points of target fc, by calculating fc and ψ max in mathematical measure room, minimum work can be used
Work amount and most labour-saving mode realize the geophysical prospecting effect for approaching spectrum induced polarization.
China is still without simple and reliable absolute phase induced polarization measurement instrument at present, in addition to traditional coherent technique principle is answered
Other than miscellaneous, in fact there are one it is crucial the problem of, be exactly broadband measurement, not solving and handling well ' should reduce 50Hz's
Hz noise, again avoid filtering cause the phase shift of signal physics ' contradictory problems, in order to reduce Hz noise safely, phase swashs
Electricity can only operate in relatively low frequency range.Sine wave phase swashs the core of electricity, is that signal sampling channel firmly believes single frequency sinusoidal wave,
Using narrow-band filtering technology, can other garbage signals of db-loss greatly, and single frequency signal fixes not in filtering channel parameter
In the case of change, the physics phase shift generated in channel is also to immobilize and can compensate exclusion, therefore, uses sine wave phase
The scheme of electricity is swashed in position, and thoroughly solving the phase shift of signal path physics and big decibel reduces the contradictory problems of Hz noise, at this
On the basis of, the working frequency of phase IP can be needed according to geology and field construction needs freely design.
Sine wave phase swashs the main contents of electricity invention, and logical relation schematic diagram is shown in that attached drawing 1 illustrates, wherein, by AB electricity
The shadow that the influence of the earth inductive load between pole and the long lead inductance of power supply are influenced and changed by A, B electrode grounding requirement
It rings, current signal I in AB current supply circuitsABWith supply voltage signal VABBetween have phase delay ψAB, measuring point MN potential difference △ UMNWith
Supply current IABBetween sharp electric phase ψ s, by locking I with microcontrollerABOn the basis of synchronizing signal, △ U are relockedMNSignal, ψ
S parameters can directly carve reading on microcontroller with time counter, and signal amplitude can be in the sine wave wave of locking frequency signal
At peak, positioning A/D acquisitions.' sine wave phase swashs electricity ', neither the DSP operation of broadband Fourier transform, nor synchronous
Coherent detection adds arctangent cp cp operation, and amplitude acquisition is consequently belonging to simple direct nor the root mean square operation of real dummy variables
Principle scheme.
Sine wave phase swashs electric signal transmitting and the conceptual design received, sine wave inverter transmitting is divided to be received with single channel,
Two seed schemes are received simultaneously with triple channel with symmetrical square wave transmitting.In order to reduce transmitting equipment cost, and also to reduce
The electromagnetic interference (EMI) emissions that system generates and other spectrum induced polarizations and phase IP difference, sine wave phase swash the signal transmitting of electricity,
It is to be emitted in the form of source of stable pressure, the size of actual transmission electric current is synchronous with signal, is obtained by the practical measurement of transmitter.It is sinusoidal
When wave signal emits, any high-frequency signal is not generated, when symmetrical square wave emits, transmitter does not require the electricity of each harmonic wave deliberately
Signal uniform synchronization is flowed, transmitter measures the synchronization of 1/3/5/ 3 harmonic current signals respectively, and passes through multiple channel to connecing
Receipts machine transmits；Because not taking the constant-current source mode impulse ejection of other sharp electricity, when the voltage direction of pulse changes, because of electricity
Due to voltage spikes radiation and radiation-induced electromagnetic interference are substantially reduced caused by stream mutation.
Sine wave phase, which swashs the characteristics of electricity, is：
1. receiving signal path adapts to single frequency sinusoidal wave, since frequency band is very narrow, system is taken a stroll direct current to disturbance of industry frequency and by force
Interference takes big decibel algorithm, and the physics phase shift that channel filtering causes single frequency sinusoidal wave to occur can compensate for, induced polarization instrument pair
It is indifferent to by other frequencies of this channel, it is also unaffected.
2. sine wave phase induced polarization instrument, absolute phase and frequency width are by measured directly after microcontroller Frequency Locking,
It is simple and fast in principle.
3. sine wave phase swashs electric reception, there are the single channel phase IP instrument of cooperation sine wave transmitting and the symmetrical side of cooperation
The triple channel sine wave phase induced polarization instrument of wave transmitting, totally two seed scheme model, the former serial received single-frequency point or multifrequency point are just
String wave signal uses public signal filtering channel；The latter acquires the signal of three Frequency points simultaneously parallel, and each frequency point respectively has
The signal filtering of oneself, the mode of each channel signal processing and the mode of single channel receiving instrument are just the same.
4. sine wave inverter transmitting, transmitter transmitting standard sine wave can be the continuous transmittings of unifrequency or more
Combination of frequency sequential loop emits.When symmetrical square wave continuously emits, it is unfolded according to square wave Fourier transformation, transmitter is simultaneously synthesizing
The sine wave of 1/3/5 subharmonic of fundamental frequency signal is transmitted, three frequencies can be completed simultaneously by meeting triple channel sine wave phase induced polarization instrument
The absolute phase and frequency width of point measure.
5. sine wave phase swashs the working frequency of electricity, meet in analysis and swash electric target, reduce execute-in-place difficulty and subtract
It on the basis of few equipment cost, designs in the range of 1Hz--12.5Hz, the time that single-point multifrequency measures can be complete between the several seconds
Into.
6. according to the regularity of distribution for swashing electric phase frequency spectrum, measured by the phase ψ s of three or more frequency points, pass through mathematics hand
Section (Gaussian normal log inversion or simple quadratic equation with one unknown inverting) approximate calculation fc and ψ max, can use minimum workload with
Most labour-saving mode realizes the geophysical prospecting effect for approaching spectrum induced polarization.
7. the ability of sine wave phase induced polarization instrument, anti-Hz noise and anti-DC influence of taking a stroll is strong, it is particularly suitable for carrying out ore deposit
Mountain (area) physical prospecting, and can be operated in deep tunnel and floor manager mining production.
4th, sine wave phase swashs the principle of electricity implementation
（One）Sine wave phase swashs the physical prospecting signal transmitting of electricity
Sine wave phase swashs the signal transmitting of electricity there are two types of form, and one kind is the transmitting of standard sine wave waveform, can be connected with unifrequency
Supervention is penetrated, can also the transmitting of multi-frequency sequential loop, available frequency range 1Hz--12.5Hz is continuous per frequency point during sequential transmission
Emit 3 periods, such as 1,248 4 frequency sine-waves are emitted as：1Hz, 1Hz, 1Hz, 2Hz, 2Hz, 2Hz, 4Hz, 4Hz, 4Hz, 8Hz,
8Hz, 8Hz, 1Hz, 1Hz...., each period are connected between 360 ° and 0 ° without interval.Another kind is fixed frequency symmetrical square wave
Continuous transmitting, square wave fundamental frequency 1Hz -2.5Hz.
The sharp electric transmitter principle block diagram of sine waveform transmitting, is shown in attached drawing 6, wherein transmitter group ingredient front and back stages
Switching Power Supply, prime are input and output high frequency transformer isolation boosting formula, control the output voltage amplitude of sine wave, and rear class is opened
The inversion of sine waveform is responsible in powered-down source, is four pipe bridge formulas, wherein switching tube { S1, S1 ' } Simultaneous Switching, and S2, S2 ' } simultaneously
Switch, duty cycle of switching, which changes, sees attached drawing 7, in sine wave inverter, switching tube S1, S1 ' } and S2, S2 ' } and alternation switch, 0--
At 180 ° S1, S1 ' } open S2, S2 ' close, S2, S2 ' } and the integrated backward dioded afterflow of pipe, 180 ° -- at 360 ° S2,
S2 ' } open S1, S1 ' close, S1, S1 ' } the integrated backward dioded afterflow of pipe.The output of rear class Switching Power Supply is filtered through two-stage LC,
The high-frequency switching signal of Switching Power Supply is filtered out, becomes low-frequency sine.
Transmitter inversion sine wave, waveform correction are controlled by microcontroller and completed.The sinewave output of inversion, process are noninductive
Electric resistance partial pressure samples and the isolation of ISO122 amplifiers, is then connected with the A/D signal input parts of microcontroller, microcontroller gathered data
Afterwards, with the signal fusing of standard sine wave, according to comparison result, accounting for for rear class Switching Power Supply inversion output is varied and controlled at any time
Empty ratio, to reach and keep the sine wave signal of output completely indeformable.
The synchronizing signal of transmitter output current counts current sample using shunting, becomes just by operational amplifier is isolated
After string wave voltage shape small-signal, on the one hand driven through super-high-current amplifier, be output to and synchronize on small cable, on the other hand through zero passage
Compare, obtain the square wave logical pulse of emission current, which send wireless transmission to synchronize, and the absolute value of current signal is sent to convert
Device also send microcontroller, and A/D is controlled to be acquired the amplitude of emission current signal by microcontroller, according to the electric current of actual measurement
Size is compared with the output current of system setting, and the output voltage of real-time feedback control and adjustment prime Switching Power Supply is kept inverse
The electric current for becoming output is stablized, meanwhile, microcontroller is constantly proofreaded by zero-crossing pulse and GPS time services, and adjustment output sine wave rises
Beginning phase, real-time ensuring output current synchronize consistent with GPS time services.
The sharp electric transmitter principle block diagram of symmetrical square wave transmitting, is shown in Fig. 8, can since this transmitter is generally high-power
Up to tens kilowatts, output is more than voltage ± 1000V, therefore from system radiating and from the point of view of maintaining easily and reducing cost,
The Switching Power Supply series connection of the universal commercial product of two 0-- 600V DC voltage-stabilizings output can be used in prime Switching Power Supply, defeated
Go out 2 pwm signal controls of binary one that the size of voltage is exported by microcontroller.The rear class of symmetrical square wave output, is general
IGBT full-bridge paraphase, phase reversal switch frequency 1Hz--2.5Hz, is controlled by microcontroller.
Symmetrical square wave swashs the wireless synchronization of electricity transmitting or GPS is synchronized, and is synchronous with the pulse voltage signal that transmitter exports
It is corresponding；And small cable output, it is that the electric current of the measurement of shunting meter and the isolation amplifier driving output of transmitter output current signal is same
Walk signal.
（Two）The signal that sine wave phase swashs electricity receives
First, the single channel sine wave phase induced polarization instrument receiver for receiving sine wave transmitting signal：
Single channel sine wave phase swashs electric receiver, and core is 16 or 32 microcontrollers of a high-speed low-power-consumption, such as
DsPIC30Fxxxx series, STM32F103xx series etc., it is desirable that there is I2The interfaces such as C/SPI/USART/USB, have high speed
The capturing ability of broad pulse lower edges positioning, can accurately capture the phase time of zero-crossing comparator, have sine wave wave crest
The ability of A/D samplings is done in positioning, and A/D resolution ratio is not less than binary one 2, has the instruction of 32/32 or 32/16 hardware division, can
The parameters such as resistivity, phase with each measuring point under the physical prospecting device of instant computing complexity.Sine wave phase swashs the working frequency of electricity
It can be manually entered with keyboard, it can also when measuring synchronous, practical measurement, the parameter that receiver measures be according to tranmitting frequency
Apparent resistivity ρ s (Ω m) and absolute phase ψ s (mrad), MN interface input impedance 10M Ω, △ UMNReception range of signal ±
0.01mV-- ± 2000mV (peak value), wherein the maximum superposition Hz noise of permission is more than ± 1000mV, phase measurement range 0-- ±
1500mrad, phase resolution are less than 0.01mrad.
In order to ensure that receiver can be worked normally under various rugged environments in the wild, each component to receiver circuit
Temperature index, type selecting meets the standard of automotive grade, i.e., at -40 DEG C -- each performance parameters do not change when working at a temperature of+125 DEG C
Become, in actual use, each parameter lowest term must reach in -40 DEG C of technical grade --+85 DEG C of temperature requirement, including each core
Piece, resistance, capacitance, quartz crystal etc. and the printed board used and scolding tin, and component therein will be through before being welded
Choice of parameters and burin-in process are crossed, all devices will be sealed and be preserved with constant temperature in the inventory before being welded；It can ensure so most
The running parameter of whole instrument product is not influenced by ambient temperature in use and changes.
The circuit theory of single channel phase IP receiver, as shown in Figure 9, the differential signal Δ U of measuring electrode M, NMN,
When accessing receiver signal leading-in end, C is first passed around0And R0, entrance below 1Hz direct current signals are blocked in it is outer, into first
During grade amplifier U0A, there are one 2 times of fixed gains, are then divided by linear digital potentiometer RW1, enter back into the second level and consolidate
Determine gain amplifier U0B, digital potentiometer RW1 and I is passed through by microcontroller2C bus marcos, point 256 grades of variations and fixed gain amplifier
The prime control of composition program controlled automatic gain together.System is divided to programme-controlled gain at forward and backward two, and rear class programme-controlled gain is by digital current potential
RW2 and fixed gain amplifier U4B compositions are counted, mode is such as prime, it is therefore an objective to when Hz noise amplitude is smaller, as far as possible
Gain is improved in prime, to ensure having enough signal-to-noise ratio, but if Hz noise amplitude is bigger than normal, so that prime signal hinders
Plug, then U5 comparators judge its signal amplitude, and when more than 3.3V, the pulse that a failing edge is provided to singlechip CPU is believed
Number, CPU reduces forward gain step by step according to this signal, and the resultant signal amplitude that prime is amplified is made to be less than 3.3V;If prime is put
In resultant signal after big, the Hz noise containing higher amplitude, then the attenuation of meeting total number, low pass filtered in low-pass filtering below
Wave device channel, to 50Hz frequencies above attenuation -147dB (decibel)；The amplitude of useful signal reduces later, then through the program-controlled increasing of rear class
Benefit improves.Microcontroller according to A/D convert as a result, do total automatic growth control, when A/D transformation results be more than 3.8V (Vref=
Make potentiometer linear downshift when 4V), when A/D results are less than 3.0V, potentiometer is made linearly to shift up.By programme-controlled gain and low pass
Filter output signal, by blocking school zero-sum precision amplifier A2 drive, later with electronic switch SWA and with high speed zero passage ratio
It is connected compared with device A3, after the sine wave signal that phase IP instrument measures is by Zero-cross comparator, 0---180 ° of output and sine wave are opposite
The high level square wave answered, the square wave is in 180 ° of sine wave --- and it is zero level at 360 °, this square wave is directly believed with the pulse of CPU
Number capture input interface be connected, then the precise time of the rising edge of square-wave pulse and failing edge can all be captured by CPU；Together
When, the inverting level of zero-crossing comparator output square wave controls SWA electronic switches, combines the accurate amplifier A5 of Differential Input, by A2
The AC sine wave of output does absolute value and is converted into Unidirectional direct-current signal, is re-fed into the A/D input interfaces of microcontroller.
Before receiver normally measures, the transmitting that receiver first has to capture AB power supplies synchronizes.When operation of receiver exists
When capturing transmitting synchronous mode, the filtered device of synchronous sine wave signal and zero-crossing comparator become symmetric block signal it
Afterwards, the outer interrupt interface of CPU is accessed, the rising and falling time of CPU acquisition pulse level calculates actual transmission sine wave
Frequency and emission time, then CPU remain synchronous with the sine-wave clock that AB emits by changing on-chip timer periodicity
(Frequency Locking), and the size of this periodicity are 32 binary systems, and the number unit of periodicity is the MCU Instruction period,
The general tens of MHz for being attained by high frequency, so the resolution ratio to sine wave phase is very high.Since Singlechip clock is high temperature resistant
Quartz oscillator, stability and accuracy are all very high, as long as AB power supply clock do not change, as long as the phase shift of AB electric currents
ψABStablize it is constant, as long as microcontroller operation do not shut down, then microcontroller just and AB transmitting signal stabilization remain synchrolock
It is fixed.
After microcontroller catch lock synchronizes, when receiver is transferred to general geophysical measurement, by keyboard, by receiver tune
To normal measurement mode.In measurement pattern, the signal of MN accesses is filtered and high speed zero-crossing comparator, on the one hand with the shape of square wave
It is interrupted outside formula access CPU, CPU emits the count value of the timer of genlocing by capture with AB, carves and reads sharp electric phase；Together
When, according to the phase time of capture, the delay emission period until sine wave signal is from when changing to 90 ° for 0 °, opens microcontroller
A/D samplings, obtain Δ UMNThe peak forward voltage of signal, according to the phase time of capture, delay emission period, Deng Daozheng
When string wave signal intensity is to 270 °, then the A/D samplings of microcontroller are opened, obtain Δ UMNThe negative peak voltage of signal obtains A/D
After sampling positive and negative peak average value, be multiplied with physical prospecting electrode coefficient, then divided by AB launch power electric currents, just obtain current measuring point
Apparent resistivity.Due to positioning A/D acquisitions at the wave crest of sine wave, signal amplitude is big, does not need to the conversion of AC signal absolute value
Average filter afterwards, resistivity acquisition is non-delay, and signal-to-noise ratio is high and speed is fast.See Figure 10, Figure 11.
Single-channel receiver signal filtering channel, the frequency decay curve graph of circuit simulation are shown in Figure 12,1Hz--12.5Hz models
Signal gain -0.4dB--+2.4dB is enclosed, the attenuation of power frequency 50Hz frequencies above is more than -147.4dB, the low frequency signal less than 0.1Hz
Attenuation is more than -79.4dB；Because of the relationship of filtering, the waveform of measuring signal will lag, and emulated physics phase-shift curve is shown in Figure 13, because
Receiver circuit selects the component of resisting temperature variation, and after burin-in process, the parameters of filter circuit will not be with environment
Temperature change and change, then fixed frequency, physics phase shift are also fixed；And sine wave phase induced polarization instrument, filtering
The signal of channel only has the sine wave of fixed frequency, and measure transmitting synchronizing signal that synchronous and small cable synchronizing obtains and
What it is in the measurement of each measuring point is homogenous frequency signal, and all have passed through a public filtering channel, and physics phase shift is identical, in microcontroller
Upper automatic compensation is offset；Therefore, this channel filtering will not swash measuring point the measurement result of electric phase and have an impact, this is sinusoidal
Wave phase swashs the characteristics of electric receiver.
Second, the triple channel sine wave phase induced polarization instrument receiver for receiving symmetrical square wave transmitting signal：
The frequency of symmetrical square wave transmitting is 1Hz -2.5Hz, for example 1.5Hz/2Hz, Fourier expansion have fundamental frequency
1.5Hz/2Hz, frequency tripling 4.5Hz/6Hz, fifth harmonic 7.5H/10Hz, seven frequency multiplication 10.5H/14Hz ... .. waits multiple harmonics
Sine wave, but other than the amplitude of one or three fifth harmonic signals is larger, the amplitude of other higher hamonic waves accounts for output power of transmitter
Very small part can be ignored.Triple channel sine wave phase induced polarization instrument utilizes the sine wave of one or three fifth harmonics of transmitter transmitting
Signal measures, and can obtain apparent resistivity ρ s of three frequency points simultaneously, regarding absolute phase ψ s, the relative phase of different frequency
Poor △ ψ s.
Triple channel sine wave phase induced polarization instrument acquires the signal of three frequency points, is irrigated respectively by three dedicated ten ranks Barts
Hereby narrow-band filtering channel when such as receiving the square wave of transmitting 1.5Hz, designs first passage filter pass band (- 3dB at 0.7Hz),
Stopband (- 40dB at1.8Hz), the signal attenuation more than 4.5Hz are more than -75dB, and signal is more than -95dB during less than 0.35Hz,
0.9Hz--2Hz range signal gains 1.7dB ± 1dB；Second bandpass filter passband (- 3dB at 0.7Hz), stopband (- 45dB
At 2.6Hz), 3V/V times of center 4.5Hz signal gains, 4.5Hz ± 0.3Hz range gains+9.0dB--+9.6dB is small to frequency
In 2.8Hz and more than 7.2Hz signal attenuation be all higher than -70dB；Third channel filter pass band (- 3dB at 1Hz), stopband (-
40dB at 2.6Hz), 5V/V times of center 7.5Hz gains are more than -73.38dB to signal attenuation of the frequency less than 4.5Hz, right
The signal attenuation of 10Hz is more than -44dB, and the attenuation more than 12Hz is more than -68dB.The frequency decay and channel of three filtering channels
The simulation curve figure of physics phase shift is shown in attached drawing 14, Figure 15, Figure 16, Figure 17, Figure 18, Figure 19, triple channel sine wave phase induced polarization instrument
The circuitry schematic diagram of receiver is shown in attached drawing 20.
Triple channel sine wave phase induced polarization instrument, to three independent signal paths, each motor synchronizing, does signal filter respectively respectively
Wave, respectively carry out program controlled automatic gain, respectively carry out sine wave signal high speed Zero-cross comparator, do respectively with electronic switch paraphase come
The absolute value conversion of AC to DC is completed, and carries out A/D conversions in 90 ° of respective sine wave and 270 ° of angles respectively, three lead to
The sharp electric phase of three, road frequency point and the data acquisition modes of amplitude and single channel sine wave phase induced polarization instrument it is just the same.
（Three）The signal that sine wave phase swashs electricity synchronizes
Sine wave phase swashs electric receiver there are four types of the synchronizing signal that mode obtains emission source, is selected by preferred sequence, is respectively
The wireless synchronization of reception wireless transmission signal receives GPS synchronous, the small cable synchronizing of access, measures synchronization, and first two is digital arteries and veins
Signal is rushed, is connected directly with the pulse interface of microcontroller, latter two is analog signal, is filtered by MN ports and system signal logical
Road inputs.Wherein, measure to synchronize is a kind of spy that simple on-site is disposed in the case where other methods of synchronization are all inconvenient to use
Different directions or tendencies formula, operation are to be arranged to receiver to measure synchronous pattern, in the public physical prospecting Anomalies of Backgrounds point of high field source region,
It is synchronized by the transmitting that the earthmeter of MN electrodes obtains.Small cable synchronizing is the basic synchronization mode of system, measurement method
Be in the case where measuring synchronous mode, but MN input be transmitter terminal draw small cable signal；Small cable signal is that transmitter is adopted
Sample and the emission current waveform signal of isolation output, the size of signal are peak-to-peak value 1V--2V, the end of small cable, there are one
The build-out resistor of 100 Ω.Wireless transmission synchronizes the synchronization for protecting receiver synchronous with GPS and updates at any time, for example runs pole measuring
With the automatic contact synchronization of receiver during mobile base station, normal time of measuring is not influenced, but both are synchronized, before use
It having to pass through and does physics phase shift scale with small cable, the power down of scale numerical value coverlet piece machine preserves, during phase IP measures, microcontroller
Wireless synchronization or GPS synchronize to the logic moment received to be added with the physics phase shift of scale, then again with each measuring point different frequencies
The logical sequence of the sine wave Zero-cross comparator signal of rate compares, and obtains the absolute position phase of each measuring point different frequency.
In phase IP measurement process, if AB current electrodes ground connection is preferable, phase shift ψABStablize constant, then receiver
After being synchronized, as long as transmitter and receiver is not shut down, then in subsequent measurement, transmitter and receiver all passes through
Quartz clock keep frequency lock with it is synchronous consistent, receiver is synchronized and is missed by manufacture adjustment without find synchronization, quartz clock again
Difference is in license scope.If synchronized using wireless synchronization or GPS, even part is because valley terrain etc. influences wireless synchronization
Signal, which transmits or blocked because of thick forest, because of tunnel etc. reason, influences the reception of GPS, will not influence being normally carried out for induced polarization measurement.
In measurement, if doing small cable synchronizing or wireless transmission synchronization in each measuring point, sine wave phase can be made to swash electricity in AB electricity
Pole grounding requirement is slightly worse and ψABIn the case that phase drift is unstable, can also it work normally.If ψABPhase drift is unstable
It is fixed, while be inconvenient to do wireless synchronization cable synchronizing synchronous and small with GPS again, then a certain receiver can be used, emitted
Machine nearby monitors in real time and measures ψABParameter (the ψ s of small cable signal are measured), records according to time shaft, can be to other receivers
The phase parameter of acquisition carries out indoor correction process, and such sine wave phase swashs electricity and remains able to normally carry out.
The small cable synchronizing of triple channel sine wave phase induced polarization instrument is synchronous with wireless synchronization and GPS, sum operation with
Single channel phase IP instrument is the same.But the wireless synchronization of symmetrical square wave transmitting is synchronous with GPS, is exomonental voltage VAB
Signal synchronizes, and the wireless synchronization of sine waveform transmitting is synchronize electric current I with GPSABSignal synchronizes, so triple channel sine wave
The calibration data that the wireless synchronization of phase IP instrument is synchronous with GPS includes ψABVariable, and ψABIt is grounded with AB current electrodes different
And it is different, so after AB electrodes ground connection changes every time, triple channel phase IP receiver will do small cable scale, comprehensive school again
Order (the ψ of three frequency pointsAB+ physics phase shift)；Alternatively, in all consistent condition of the existing scale target of each Receiver with Three-Channel
Under, after new launch power electrode ground connection changes, need to do 1/,3/5 3 frequency points to new small cable signal with a certain receiver
ψ s measure, measure AB electrodes ground connection change after three Frequency points △ ψABVariable quantity, all receivers can be used normally
Some calibration parameters measure, and finally do offset correction to the ψ s parameters of acquisition；If receiver number of units is had more than needed, can
To detect ψ in real time with a receiver is full-timeAB, then other receivers normally measure, can not be by ψABDrift about the shadow changed
It rings.
5th, sine wave phase swashs the advantages of electricity：
1. sine wave phase swashs electricity, with principle is simple and fast, equipment is economical and practical, instrument is light, data sampling is fireballing
Feature.Since AB electrodes tranmitting frequency is higher, physical prospecting spot measurement can be completed in a few seconds, more other induced polarization instruments, at least
Improve 10 times or more of working efficiency.
2. sine wave phase swashs electricity, tranmitting frequency is more than 1Hz, the interference of graphite carbonaceous can be effectively excluded, to metal sulfide
Ore body phase is quick on the draw.
3. sine wave phase swashs electricity, the phase acquisition of receiver is not influenced by channel filtering, and data acquire accurately and reliably.
4. with other spectrum induced polarizations and phase IP difference, sine wave phase swashs the signal transmitting of electricity, is with source of stable pressure
What mode emitted.Sine wave transmitting is there is no any high-frequency signal, symmetrical square wave transmitting, because not used using other sharp electricity
Constant-current source mode, when pulse direction changes, caused by current break voltage spike radiation and radiation-induced electromagnetism
Interference is substantially reduced.Sine wave phase swashs electricity, receives the frequency of signal, and between 1Hz--12.5Hz, other signals are not closed
Note, it is also unaffected, the influence of any high frequency sharp pulse radiation can be avoided, so to swash electricity not only environmentally protective for sine wave phase,
And anti-noise to electromagnetic interference and adaptable, can in disturbance of industry frequency and strong DC influence area normal work of taking a stroll,
It is suitble to mine physical prospecting.
5. sine wave phase swashs electricity, signal transmitting and the method for synchronization received, than other spectrum induced polarizations and phase IP
Turin live, and the mode that wireless synchronization is synchronous with GPS is influenced small, the adaptation to various environment by the variation of external condition
Ability is strong.
6. sine wave phase swashs electricity AB emission electrode grounding requirements are slightly worse and ψABIn the case that phase drift is unstable,
Also it can work normally；Due to using full AC signal, receiver eliminates direct current and the shadow of very low frequencies destabilizing factor automatically
Ring, the requirement of the grounding requirements of MN receiving electrodes also than other sharp electricity is low, and execute-in-place speed is high-quality soon, therefore with it is other sharp
Electricity is compared, and it is stronger to the geology adaptability at scene that sine wave phase swashs electricity.
7. the emission principle that symmetrical square wave swashs electricity is simple, equipment cost low-power is big, conveniently does large area and big pole span is deep
Spend physical prospecting.
6th, prospect of the present invention
" sine wave phase swashs the technical solution of electricity " is to summarize existing frequency as a kind of research of physical prospecting new method and technology
On the basis of spectrum swashs electricity and phase IP, in line with a kind of new method that the demand cheaply operated, success are invented, this programme solves
The bottleneck problem of IP of time domain solves the disadvantage that the high benefit at low cost of spectrum induced polarization and existing phase IP, measures speed
Degree is all faster than the speed of spectrum induced polarization, existing phase IP and IP of time domain, and grounding requirement relative requirement is minimum, has letter
The characteristics of list is quick, economical and efficient can become as the important supplement of spectrum induced polarization and phase IP technology application process and swash electricity
The quick and convenient means of Technique Popularizing look for ore deposit service for geologic prospecting and detailed survey.
Sine wave phase swashs particularly suitable mine (area) physical prospecting of electricity, is swashing electricity and other frequencies using upper transcending time domain
Swash electricity in domain, it will as mineral enterprises such as non-ferrous metals, in mining production and look for the important means used in ore deposit.Existing frequency spectrum
Swash electricity and phase IP, ' lunch break ' that can only stop commercial power in mine (area) carries out ground physical prospecting, and sine wave phase
Position swash electricity, industrial electrical network, rail traffic, elevator, electromagnetism lifting environment in, at any time, can carry out sharp
Electricity work, can not only do ground physical prospecting, can also carry out underground phase IP in the deep tunnel that can not possibly stop commercial power,
Scene instruction storage ore deposit space, the production of guiding tunnel.Therefore, string wave phase swashs the future customer of electricity, not only there is geology universities and colleges, territory
The Geological And Mineral Resources Departments In Their of resource exploration, gold mine forces also have the numerous mine state-owned enterprises, the small ore deposit of individual enterprise main etc., it is contemplated that economic benefit
It is considerable.
7th, it illustrates
Fig. 1：Sine waveform corresponds to absolute phase ψ s and its main power supply VAB、IABLogic relation picture；
Fig. 2：The theoretical calculation spectrum curve of certain sulfide mineral selects from the big Master's thesis of Central-South work " summer training silver multi frequency induced polarization phases
To phase method numerical simulation and PHYSICAL MODELING OF IN "；
Fig. 3：The theoretical calculation spectrum curve of graphite selects from the big Master's thesis of Central-South work " summer training silver multi frequency induced polarization relative phase methods
Numerical simulation and PHYSICAL MODELING OF IN "；
Fig. 4：The experiment spectrum curve of certain pyrite sulfide mineral selects from the big Master's thesis of Central-South work " summer training silver multi frequency induced polarizations
Relative phase method numerical simulation and PHYSICAL MODELING OF IN "；
Fig. 5：The experiment spectrum curve of graphite selects from the big Master's thesis of Central-South work " summer training silver multi frequency induced polarization relative phase method numerical value
Simulation and PHYSICAL MODELING OF IN "；
Fig. 6：The sharp electric transmitter principle schematic diagram of sine waveform inversion transmitting；
Fig. 7：The rear class Switching Power Supply change in duty cycle figure of sine waveform inversion transmitting；
Fig. 8：The sharp electric transmitter principle schematic diagram of symmetrical square wave transmitting；
Fig. 9：Single channel sine wave phase induced polarization instrument receiver principle schematic diagram；
Figure 10：Sine wave phase swashs absolute (delay) phase of electricity and the acquisition principle figure of amplitude；
Figure 11：Sine wave phase swashs absolute (advanced) phase of electricity and the acquisition principle figure of amplitude；
Figure 12：Single channel sine wave phase induced polarization instrument filtering channel simulation frequency attenuation curve figure；
Figure 13：Single channel sine wave phase induced polarization instrument filtering channel simulation frequency physics phase-shift curve figure；
Figure 14：Triple channel sine wave phase induced polarization instrument 1.5Hz narrow-band filtering simulation frequency attenuation curve figures；
Figure 15：Triple channel sine wave phase induced polarization instrument 1.5Hz narrow-band filtering simulation frequency physics phase-shift curve figures；
Figure 16：Triple channel sine wave phase induced polarization instrument 4.5Hz narrow-band filtering simulation frequency attenuation curve figures；
Figure 17：Triple channel sine wave phase induced polarization instrument 4.5Hz narrow-band filtering simulation frequency physics phase-shift curve figures；
Figure 18：Triple channel sine wave phase induced polarization instrument 7.5Hz narrow-band filtering simulation frequency attenuation curve figures；
Figure 19：Triple channel sine wave phase induced polarization instrument 7.5Hz narrow-band filtering simulation frequency physics phase-shift curve figures；
Figure 20：Triple channel sine wave phase induced polarization instrument receiver principle schematic diagram.
Claims (3)
1. sine wave signal Frequency Locking (synchronous with Singlechip clock) and swash electric phase directly carve reading, A/D at sine wave wave crest
Acquire amplitude.
2. in the narrow-band filtering of simple signal, the physics phase shift of sine wave signal can compensate for.
3. sine wave phase swashs ' sine wave emit with single channel sine wave phase induced polarization instrument receive ' subscheme of electricity and ' symmetrical
Square-wave transmission is received with triple channel sine wave phase induced polarization instrument ' subscheme.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711437427.8A CN108196307B (en) | 2017-12-26 | 2017-12-26 | Technical scheme for sine wave phase induced polarization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711437427.8A CN108196307B (en) | 2017-12-26 | 2017-12-26 | Technical scheme for sine wave phase induced polarization |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108196307A true CN108196307A (en) | 2018-06-22 |
| CN108196307B CN108196307B (en) | 2020-04-24 |
Family
ID=62584427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711437427.8A Active CN108196307B (en) | 2017-12-26 | 2017-12-26 | Technical scheme for sine wave phase induced polarization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108196307B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217493A (en) * | 2018-10-08 | 2019-01-15 | 中国科学院电工研究所 | The input impedance calculation method of wireless charging system rectifier bridge discontinuous operating mode |
| CN109905088A (en) * | 2019-01-26 | 2019-06-18 | 张帆 | A kind of power transmission real-time monitoring system |
| CN112050870A (en) * | 2020-08-20 | 2020-12-08 | 长江武汉航道工程局 | Curve reduction anti-interference measuring device and method thereof |
| CN112255691A (en) * | 2020-11-09 | 2021-01-22 | 高军 | Method for detecting deep fracture geology by induced polarization composite frequency |
| CN112882105A (en) * | 2021-01-13 | 2021-06-01 | 廊坊市立福地质勘查技术有限公司 | Self-synchronizing method for receiving rectangular wave periodic signal |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034276A (en) * | 1988-01-15 | 1989-07-26 | 中南工业大学 | Frequency spectrum stimulated electricity surveying system with double-frequency channels and multiparameters |
| CN1673776A (en) * | 2005-04-08 | 2005-09-28 | 叶树民 | Technical program for excitation electric absolute phase measuring and time-frequency excitation electric multi parameter simultaneous measuring |
| CN201837729U (en) * | 2010-11-09 | 2011-05-18 | 李志武 | High-density induced polarization phase electrical measuring instrument |
| CN102305946A (en) * | 2011-07-21 | 2012-01-04 | 廊坊市立福地质勘查技术有限公司 | Method for simultaneously measuring double-domain induced polarization full parameters |
| CN104122594A (en) * | 2014-07-08 | 2014-10-29 | 中国地质科学院地球物理地球化学勘查研究所 | Multi-parameter extraction data processing method of time domain induced polarization full-waveform sampling |
-
2017
- 2017-12-26 CN CN201711437427.8A patent/CN108196307B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034276A (en) * | 1988-01-15 | 1989-07-26 | 中南工业大学 | Frequency spectrum stimulated electricity surveying system with double-frequency channels and multiparameters |
| CN1673776A (en) * | 2005-04-08 | 2005-09-28 | 叶树民 | Technical program for excitation electric absolute phase measuring and time-frequency excitation electric multi parameter simultaneous measuring |
| CN201837729U (en) * | 2010-11-09 | 2011-05-18 | 李志武 | High-density induced polarization phase electrical measuring instrument |
| CN102305946A (en) * | 2011-07-21 | 2012-01-04 | 廊坊市立福地质勘查技术有限公司 | Method for simultaneously measuring double-domain induced polarization full parameters |
| CN104122594A (en) * | 2014-07-08 | 2014-10-29 | 中国地质科学院地球物理地球化学勘查研究所 | Multi-parameter extraction data processing method of time domain induced polarization full-waveform sampling |
Non-Patent Citations (2)
| Title |
|---|
| A.B.库利科夫等: "《相位激发极化法》", 28 February 1981 * |
| 李勇: "频域激电相干检测嵌入式系统研究", 《中国优秀博硕士学位论文全文数据库（硕士） 基础科学辑》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109217493A (en) * | 2018-10-08 | 2019-01-15 | 中国科学院电工研究所 | The input impedance calculation method of wireless charging system rectifier bridge discontinuous operating mode |
| CN109217493B (en) * | 2018-10-08 | 2021-07-20 | 中国科学院电工研究所 | Input impedance calculation method for intermittent working mode of rectifier bridge of wireless charging system |
| CN109905088A (en) * | 2019-01-26 | 2019-06-18 | 张帆 | A kind of power transmission real-time monitoring system |
| CN109905088B (en) * | 2019-01-26 | 2022-11-22 | 内蒙古皖能建筑安装工程有限公司 | Power transmission real-time monitoring system |
| CN112050870A (en) * | 2020-08-20 | 2020-12-08 | 长江武汉航道工程局 | Curve reduction anti-interference measuring device and method thereof |
| CN112255691A (en) * | 2020-11-09 | 2021-01-22 | 高军 | Method for detecting deep fracture geology by induced polarization composite frequency |
| CN112255691B (en) * | 2020-11-09 | 2024-02-02 | 高军 | Deep fracture geological method for detecting excitation composite frequency |
| CN112882105A (en) * | 2021-01-13 | 2021-06-01 | 廊坊市立福地质勘查技术有限公司 | Self-synchronizing method for receiving rectangular wave periodic signal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108196307B (en) | 2020-04-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108196307A (en) | Sine wave phase swashs the technical solution of electricity | |
| CN102590869B (en) | Artificial field source frequency domain electrical prospecting method and prospecting system | |
| CN110673218A (en) | Method for extracting IP information in transient electromagnetic response of grounding wire source | |
| CN1945358B (en) | High precision measuring method for deep resource based on natural electric field idealization and detecting instrument | |
| CN103091717A (en) | Electromagnetic prospecting method capable of achieving self-synchronizing frequency conversion of receiving and sending | |
| WO2008106828A1 (en) | A high resolution electromagnetic method of earth for removing static frequency domain | |
| CN102305946B (en) | Dual domain swashs the method that electric population parameter is measured simultaneously | |
| CN107544094B (en) | A kind of place all standing pollution quick screening method based on frequency domain electromagnetic inductance gauge | |
| CN109782360A (en) | A kind of low-resistance area of coverage deep sand body detection method | |
| CN101813725A (en) | Method for measuring phase difference of low-frequency signals | |
| CN102520451B (en) | High-precision double-way ground voice frequency electromagnetic physical geography prospecting instrument | |
| CN106570227B (en) | A kind of electrode arrangement optimization method and device of ultra high density electrical method | |
| Yang et al. | Energy distribution and effective components analysis of 2n sequence pseudo-random signal | |
| CN1325031A (en) | Electrical active-source frequency domain exploration method | |
| CN104122594A (en) | Multi-parameter extraction data processing method of time domain induced polarization full-waveform sampling | |
| CN101702034B (en) | Detection method and detector for underground water source based on earth electromagnetic induction principle | |
| Ngwira et al. | Geomagnetic activity indicators for geomagnetically induced current studies in South Africa | |
| CN200962147Y (en) | Ideal deep resource high-precision detector based on the natural electric field | |
| Zhang et al. | Design of depth-focused electromagnetic transmitting scheme based on MFSPWM method | |
| Liu et al. | Realization of multi-frequency resonance for a portable near-surface frequency-domain electromagnetic transmitting system | |
| Sternberg | The variability of naturally occurring magnetic field levels: 10 Hz to 8 kHz | |
| CN104459805B (en) | Digitally underground pipeline detecting instrument | |
| CN102565864A (en) | Array lateral electrode system | |
| Garner et al. | Broadband (ULF-VLF) surface impedance measurements using MIMDAS | |
| CN105242319A (en) | High-density electrical prospecting instrument capable of receiving magnetic and electric signals and measuring method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |