CN101000379A - Method and device for high density detecting polarizability using metal electrode - Google Patents
Method and device for high density detecting polarizability using metal electrode Download PDFInfo
- Publication number
- CN101000379A CN101000379A CN 200710002677 CN200710002677A CN101000379A CN 101000379 A CN101000379 A CN 101000379A CN 200710002677 CN200710002677 CN 200710002677 CN 200710002677 A CN200710002677 A CN 200710002677A CN 101000379 A CN101000379 A CN 101000379A
- Authority
- CN
- China
- Prior art keywords
- electrode
- potential
- circuit
- polarizability
- power supply
- 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
Images
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
A device of using metal electrode to detect polarizability is prepared as setting hold circuit and summation circuit of sampling in said device then controlling each step of detecting polarizability by setting operation program of computer.
Description
Technical field
The invention belongs to the method and apparatus of geophysical exploration, concrete is a kind of method of polarizability imaging technique and the device of use thereof.
Background technology
So-called high density detecting stratum polarizability is to utilize high density electricity imager to connect one to survey cable, and the electric connection point of a large amount of connection electrode is set on the line, has 60,120 or more.All electrodes link by this cable and electric imager, see accompanying drawing 2.Under electric imager control, carry out scan-type and measure stratum polarized potential value, calculate polarizability then.
Metal electrode is a bit squeezed in the soil at certain, positive and negative charge just adsorbs on the electrode of opposed polarity, as time passes, accumulates gradually with the polarized potential form and is present on the electrode, or to positive change or to the negative sense variation, the DC potential that shows as on the electrode rises or descends.This current potential is called polarized potential V
J, so-called polarization effect that Here it is promptly produces polarized potential; Any at the earth's surface 2 all exist potential difference (PD), and this is the various signal potentials of the Nature stack result that sum showed, and it is that form with DC potential exists, and is referred to as spontaneous potential V
NAbove-mentioned polarized potential V
JWith spontaneous potential V
NBe superimposed, system is referred to as spontaneous potential (V
Z=V
N+ V
J), its order of magnitude can reach hundreds of millivolts.When electrode was done the transmitting electrode use, its spontaneous potential was compared with supply voltage and can be ignored; But when this electrode was made potential electrode, the spontaneous potential on the electrode will cause useful signal and have a strong impact on.Therefore, when carrying out resistivity prospecting, must eliminate the influence of this current potential, so that accurately measure the polarizability on stratum.
At present, conventional way is: make all to use when polarizability is measured two cover electrodes, one cover is a metal electrode (stainless steel, brass electrode etc.), special as power supply, and another set of be non-polarizing electrode, be a kind of ionic conduction of special making, do not produce the electrode of polarization effect, use as measuring-signal specially.Metal electrode only is used for power supply, and when needs were measured, this moment, instrument control switching was on non-polarizing electrode.The AGI high-density electric instrument (patent No. is US6404203) that U.S. AGI company produces is called two double mode cover electrode structures; The WGMD-5 high-density electric instrument that domestic Chongqing Pentium Study numerical control (NC) technology is produced also is to adopt two cover electrodes.
The problem that this apparatus structure and corresponding detection method bring just is to use number of electrodes many, and equipment amount is big, and the construction volume that electrode etc. is buried at transportation, scene underground increases, and labour intensity also strengthens; Also to increase the equipment of control switching aspect being provided with in instrument internal.In the open air during the cloth utmost point, metal electrode is driven underground with iron hammer and is got final product, and that non-polarizing electrode is shaped as is cylindrical, flat, need when burying underground to cut out topsoil with spades, seeing new soil will flatten, if antecedent soil moisture also will add an amount of water, keep contacting well with the earth, situation about wasting time and energy is conspicuous.
Except that above-mentioned situation, so-called non-polarizing electrode also has little polarization effect.Generally, when the normal polarization rate of artificial traveling electrode is measured, be to use two non-polarizing electrodes, require difference in Electrode Potential to be not more than 2mv before going to work in the magnitude of several millivolts (mv), should be when surveying work finishes greater than 5mv.Yet for the high density electric pilot that the multi-electrode scan-type is measured, the extreme difference problem of handling numerous electrodes is exactly a very loaded down with trivial details thing, and the extreme difference variation issue after solution is knocked off just is difficult to accomplish especially.Bring influence so also must for their measurement result.The requirement of country's technical manual is that non-polarizing electrode is safeguarded meticulously, can not expose to the sun and rain, and keeps internal resistance to be not more than 2K Ω, and these require also to bring very big inconvenience for a large amount of non-polarizing electrodes of using.
At present, the method of carrying out stratum polarizability detection with non-polarizing electrode is: for certain two sensing point A, B, be arranged on the metal electrode at these 2 earlier, in unit interval t1, give this electrode charging, M, N are transferred into two non-polarizing electrodes during two electrode measurement signals again, measure primary field potential value V
P, have a power failure then and the Δ t that delays time after, measure secondary field potential value V
S, calculate this electric susceptibility value η=(V of 2 again
S/ V
P) * 100%.Carry out the measurement of pointwise like this.This shows the cumbersome of this method.And not polarizing of so-called non-polarizing electrode promptly do not produce polarization effect, is relative yet, and it in fact still has polarization effect, though than little many of metal electrode, still can produce very important influence to the result who surveys.
Therefore, need proposition a kind of more simple and convenient, the device that the method that the stratum electric susceptibility that Effect on Detecting is good is surveyed and this method are used.
Summary of the invention
The objective of the invention is at the problems referred to above, propose a kind of method and device that carries out the high density detecting polarizability with metal electrode.This method and apparatus is reasonable in design, and is easy to operate, and Effect on Detecting is good, can save large number quipments and manpower, reduces workload and labour intensity.
The objective of the invention is to be achieved through the following technical solutions:
A kind ofly carry out the method for high density detecting polarizability, it is characterized in that: may further comprise the steps with metal electrode:
At first the metal electrode of polarizability sniffer is squeezed into ground according to surveying the distance that needs, each electrode and sniffer are coupled together with cable;
The each measurement participated in by four electrodes, such as being followed successively by: A, M, N, B, wherein two electrode A, B make transmitting electrode, and two electrode M, N are potential electrode in addition;
At first eliminate the spontaneous potential V on M, the N electrode
Z(V
Z=V
N+ V
J, V wherein
NBe the spontaneous potential of electrode M, N, V
JBe electrode M, the N polarized potential that the back produces of being driven underground): by sniffer the spontaneous potential on electrode M, the N is measured, by sampling hold circuit and the summing circuit that is provided with in the sniffer, with its elimination; Be the inverting input that spontaneous potential is sent into operational amplifier in the summing circuit, the characteristic of utilizing the two current potential of differential amplifier in-phase input end and inverting input to subtract each other makes circuit be output as zero, and the purpose of spontaneous potential is fallen in realization " top ".
Survey polarizability then: in the one-period that polarizability is surveyed, the power supply process of electrode A, B is: the forward power supply---stops and delay time---oppositely powering---stops and delaying time; Be identical each actuation time, by potential electrode M, the N current potential when the power supply of A, B forward, promptly measures forward primary field potential value+VP; Stop power supply then, and after being time-delay Δ t slightly, measure forward secondary field potential value+V
SAgain electrode A, B are oppositely powered after having surveyed, measure reverse primary field potential value-VP value during this period; Then, stop power supply equally and measure reverse secondary field potential value-V after being time-delay Δ t slightly
S(value of described VP, VS is the voltage difference of M, N two contacts); Finished the measurement action of one group of signal of a unit interval t1 to this;
Next move a position downwards together at four electrodes of second unit interval t2 control, repeat identical measurement action successively, for each electrode, last one is transmitting electrode constantly, and next just may be a potential electrode constantly, finish in the unit interval t2 with unit interval t1 in identical operations, be unit interval t3 successively, t4 ... up to unit interval tn, till whole piece detection line top electrode has all been surveyed, promptly finished the surveying work of a detection line;
According to the result of above-mentioned measurement, calculate the polarizability value:
(|+VPi|+|-VPi|)/2＝Vpi
(|+Vsi|+|-Vsi|)/2＝Vsi
Electric susceptibility: η i=(Vsi/VPi) 100%, wherein i=1,2 ... n;
With the data upload host computer, carry out that image shows and data are for further processing.
Because in the method for carrying out the high density detecting polarizability with metal electrode of the present invention, the gatherer process of each data all at first " top " fall spontaneous potential, thereby eliminated the spontaneous potential of metal electrode; Measure in the polarizability process of stratum formal, all will pass through positive and negative twice power supply, carry out twice measurement, spontaneous potential V is still arranged in this process
ZProduce, survey V in the forward power supply
PThe time or outage survey V
SThe time V all arranged
ZAdd.And in the forward power supply detection and the detection process of oppositely powering, V
ZCan regard a potential value of determining relatively as, if it is on the occasion of having enlarged primary field potential value V when forward is powered
PWith secondary field potential value V
S, when oppositely power supply is surveyed, then can reduce V so with identical value
P, V
SValue.So V
ZWhen forward and reverse twice power supply were surveyed, actual was to have played the effect that one-plus-one subtracts, promptly during the forward supplying measure | and+VP|+V
ZAnd |+VS|+V
ZWhen oppositely measuring during power supply then |-VP|-V
ZAnd |-VS|-V
ZLike this absolute value addition of twice measurement of forward and reverse power supply is averaged, can eliminate V
ZInfluence, obtain correct primary field potential value V
pAnd secondary field potential value V
SValue, and then obtain correct polarizability value η.
Of the present invention to carry out the method for high density detecting polarizability with metal electrode easy and simple to handle, and equipment needed thereby is few, and cost is low, and Effect on Detecting is good, can reach the standard of relevant detection accuracy fully.
The device that carries out the high density detecting polarizability with metal electrode of the present invention, mainly comprise: the input circuit that constitutes by impedance inverter circuit, by low pass filtered involve filtering circuit that the notch filter circuit constitutes, by amplifier, A/D analog to digital converter, microcomputerized controller, power supply, detection line and cable, metal electrode that floating point amplifier constitutes, it is characterized in that: described filtering circuit is connected with a switch with a summing circuit, a sampling hold circuit; Described metal electrode equidistantly is connected on the described detection line, this metal electrode is connected with described input circuit by cable, the output terminal of this input circuit is connected with the input end of described filtering circuit, an output terminal of this filtering circuit is connected with described sampling hold circuit, the input end of its another output terminal and described summing circuit is connected, the output terminal of described sampling hold circuit is connected with the input end of described switch, and the output terminal of this switch is connected with another input end of described summing circuit; The output terminal of described summing circuit is connected with amplifier input terminal; The output terminal of amplifier is connected with the input end of a described A/D analog to digital converter; Described input circuit, filtering circuit, sampling hold circuit, switch, summing circuit, amplifier, analog to digital converter all carry out control linkage with described microcomputerized controller; Be microcomputerized controller from these parts input desired datas, microcomputerized controller with data processing after, send control signal to associated components again; In this microcomputerized controller, be provided with memory unit, inputoutput unit and be provided with CPU and have the executable computer program of CPU.Microcomputerized controller also is connected with the host computer 15 with communication function, polarizability imaging function.
Computing machine program run flow process is in the microcomputerized controller of the present invention:
This computer program operational scheme is: pick up from right current potential, and------------stopping power supply,---------------stopping power supply,---------------calculating the polarizability value---uploads host computer to " top " spontaneous potential to calculate secondary field value Vs to calculate primary field value Vp to survey reverse secondary field current potential in time-delay to survey reverse primary field current potential in oppositely power supply to survey the secondary field current potential in time-delay to survey the primary field current potential in the forward power supply; Microcomputerized controller of the present invention also is connected with the host computer with communication function, polarizability imaging function.
Of the present inventionly carry out the device of high density detecting polarizability,, can easily the spontaneous potential of metal electrode be eliminated owing to be provided with sampling hold circuit and summing circuit with metal electrode; Owing to be provided with CPU and executable computer program, can realize automatic control to the detection process that calculates electric susceptibility from eliminating spontaneous potential.Can non-polarizing electrode be set, only use under the condition of a cover metal electrode, detect the polarizability on stratum quickly and easily, and eliminate the polarized potential that metal electrode produces in this polarizability, have higher accuracy and precision.That detection polarizability device of the present invention has is simple in structure, easy to operate, detection efficiency is high, detection is accurate, precision is high, and particularly equipment is few, easy maintenance, the advantage that cost is low.
Description of drawings
Fig. 1 is a structural representation block diagram of the present invention;
Fig. 2 is that the detection line of sniffer of the present invention is connected with metal electrode with cable and measuring unit's time and electrode position concern synoptic diagram;
Fig. 3 is the segmentation synoptic diagram of a unit interval in the detection process of the present invention.
Embodiment
The present invention is described further below in conjunction with drawings and Examples: embodiment: the input circuit 4 that is made of impedance inverter circuit, involved filtering circuit 6 that the notch filter circuit constitutes, the amplifier 9, A/D analog to digital converter 10, microcomputerized controller 12, the power supply 11 that are made of floating point amplifier, surveyed line and 3,60 brass metal electrodes 1 of cable by low pass filtered, described filtering circuit and a summing circuit 8, a sampling hold circuit 5 are connected with a switch 7; Described metal electrode equidistantly is provided with, be connected with described input circuit with cable 3 by described detection line, the output terminal of this input circuit is connected with the input end of described filtering circuit, an output terminal of this filtering circuit is connected with described sampling hold circuit, the input end of its another output terminal and described summing circuit is connected, the output terminal of described sampling hold circuit is connected with the input end of described switch, and the output terminal of this switch is connected with another input end of described summing circuit; The output terminal of described summing circuit is connected with the input end of amplifier 9; The output terminal of amplifier is connected with the input end of a described A/D analog to digital converter 10; Described input circuit, filtering circuit, sampling hold circuit, switch, summing circuit, amplifier, analog to digital converter all carry out control linkage with described microcomputerized controller; Be microcomputerized controller from these parts input desired datas, microcomputerized controller with data processing after, send control signal to associated components again; Be provided with memory unit, inputoutput unit and be provided with CPU and have the executable computer program of CPU in this microcomputerized controller, this computer program operational scheme is: pick up from right current potential, and------------stopping power supply,---------------stopping power supply,---------------calculating polarizability value η---uploads host computer to " top " spontaneous potential to calculate secondary field value Vs to calculate primary field value Vp to survey reverse secondary field current potential in time-delay to survey reverse primary field current potential in oppositely power supply to survey the secondary field current potential in time-delay to survey the primary field current potential in the forward power supply; Microcomputerized controller of the present invention also is connected with the host computer 13 with communication function, electric susceptibility imaging function.
Carry out the method (using the sniffer in the foregoing description) of high density detecting polarizability with metal electrode: at first unit interval t1, get one group of four electrode as A, M, N, B, the process of gathering is: on electrode A, B, switches on earlier, and with M, the spontaneous potential V on N two metal electrodes
Z(V
Z=V
N+ V
J) send into input circuit 4, this circuit is an impedance inverter circuit, enters filtering circuit 6 then, only there are spontaneous potential V in the process low pass filtered has involved the notch filter filtering various alternating electromagnetic undesired signals and 50HZ industrial electro undesired signal
Z, 6 fens two-way of filtering circuit are to the following sampling hold circuit 5 of sending into, under microcomputerized controller 12 controls to spontaneous potential V
ZSample, and remain on capacitor C
HOn; Another route filtering circuit 6 is sent spontaneous potential into summing circuit 8, the differential input amplifier 9 that summing circuit utilizes the OP27 operational amplifier to make, the spontaneous potential that its in-phase input end acceptance is sent into by filtering circuit 6, the inverting input of differential amplifier is by the C of switch 7 with sampling hold circuit 5
HThe spontaneous potential of last maintenance is sent into the inverting input of operational amplifier in the summing circuit 8, and the characteristic of utilizing the two current potential of differential amplifier in-phase input end and inverting input to subtract each other makes circuit be output as zero, has realized that " top " fall the purpose of spontaneous potential.Said process is exactly that " picking up from right current potential " in the computer program operational scheme reaches the process of " top spontaneous potential ".Follow the expanding data collection period, it is formed by four sections, and referring to Fig. 3, i.e.---stopping power supply and delay time,---oppositely power supply---stop power supply and delay time, four-stage is finished data acquisition in forward power supply.At first be from the power supply of beginning forward measuring period when beginning, and measures forward primary field value V during this period
PStop power supply, do Δ t time-delay, measure forward secondary field current potential V
SReverse primary field-VP is measured in oppositely power supply during this period then; Stop reverse power supply, do Δ t time-delay, measure reverse secondary field current potential-V
SCalculate primary field potential value VP, this calculating is to get after the absolute value addition of twice numerical value to be removed by 2 to obtain more accurate primary field value.This process can also be removed the polarized potential value V that produces in measuring period
ZIf, V
ZBe a positive potential, then measure V at forward
PThe time V that just superposeed
Z, then oppositely reverse V is being read in power supply
PThe time will deduct a V
ZValue, the process of such twice reading addition is one+V
ZWith one-V
Z, offsetting naturally is 0, the V that draws
PValue is true accurate value; Calculate secondary field value V
S, its computation process and calculating V
PIdentical, so also can get accurate V
SValue; Calculate polarizability value η=(V
S/ V
P) 100%.T1 when measuring a unit like this, also the i.e. measuring process of a detecting location according to same quadrat method, at second unit interval t2, is taken off one group of four electrode and is measured, until last unit interval tn and last measuring position.N is 60 in the present embodiment, and the unit interval is 8S, and charging and power failure add time-delay and respectively be 2S.Said process is powered with low frequency ac, is effective to removing the undesired signal that shows with DC potential.
The result that present embodiment is surveyed, compare with the effect of using non-polarizing electrode under identical measuring condition, to measure, basic identical, only exist error minimum, if the result who measures with non-polarizing electrode is as the criterion, the error requirements that its error is measured polarizability well below national standard.See table:
" table one ", " table two " are (4 electrodes on the artificial cloth, 2 electrodes of A, B in a usual manner; 2 potential electrode M, N), measure (table one) and brass electrode with non-polarizing electrode and measure (table two) and compare, the each measurement with the 2 seconds pulsewidths of powering (forward power 2S---2S stops power supply---2S oppositely powers---, and 2S stops power supply), measure 6 polarizability values, this value is successively decreased.As following table:
Table one: non-polarizing electrode
| Sequence number as a result | η1 | η2 | η3 | | η5 | η6 | |
| 1 | 2.603 | 1.866 | 1.506 | 1.282 | 1.038 | 0.825 | |
| 2 | 2.614 | 1.867 | 1.496 | 1.264 | 1.028 | 0.820 | |
| 3 | 2.609 | 1.866 | 1.498 | 1.266 | 1.04 | 0.83 | |
| 4 | 2.593 | 1.851 | 1.494 | 1.276 | 1.036 | 0.819 | |
| 5 | 2.604 | 1.867 | 1.497 | 1.263 | 1.031 | 0.817 | |
| 6 | 2.603 | 1.851 | 1.501 | 1.268 | 1.025 | 0.816 | |
| 7 | 2.606 | 1.854 | 1.495 | 1.262 | 1.031 | 0.829 |
Table two: (brass electrode)
| Sequence number as a result | η1 | η2 | η3 | | η5 | η6 | |
| 1 | 2.518 | 1.774 | 1.424 | 1.178 | 0.964 | 0.781 | |
| 2 | 2.516 | 1.757 | 1.41 | 1.17 | 0.958 | 0.776 | |
| 3 | 2.503 | 1.77 | 1.427 | 1.179 | 0.963 | 0.786 | |
| 4 | 2.552 | 1.792 | 1.443 | 1.208 | 0.998 | 0.801 | |
| 5 | 2.516 | 1.768 | 1.409 | 1.189 | 0.973 | 0.791 | |
| 6 | 2.502 | 1.744 | 1.387 | 1.141 | 0.936 | 0.751 | |
| 7 | 2.517 | 1.78 | 1.421 | 1.189 | 0.972 | 0.787 |
As can be seen from the table, though the numerical value of surveying error slightly, far below national standard error tolerance band.Use non-polarizing electrode to measure, still have polarized potential not eliminate because of it is actual, itself and reality also have error; In the measuring method of the present invention, though use is the metal electrode that has big polarized potential, because of in the method polarized potential having been done removal preferably, so in fact, the measured result's ratio of measuring method of the present invention uses the more approaching reality of non-polarizing electrode.
Table three present embodiment non-polarizing electrode and brass electrode be 5 average contrast tables of reading under the same conditions:
Table three all use 5 readings that superpose to average for each electrode and is contrasted, i.e. continuous coverage 5 times during each Measuring Time section draws 5 value additions and takes the mean and contrast.
Table three:
As can be seen from the above table, the numerical value of surveying basic identical, though error slightly, far below the permissible error of national standard.
Stipulate 14.1.5.2 apparent chargeability measuring error in the national standard PZ002.1 ∽ 0020.3-9 induced polarization instrument general technical specifications about the polarizability error:
η＞3% o'clock relative measurement error: the A level is-2% ± 1 word ∽+2% ± 1 word; The B level is-4% ± 1 word ∽+4% ± 1 word.
η≤3% o'clock the error of absolute method of measurement: the A level is reading-0.3% ± 1 word ∽+0.3% ± 1 word; The B level is-0.5% ± 1 word ∽+0.5% ± 1 word.
If with the data of table three polarizability less than 3% condition under, with regard to the A level, can add 0.3% ± 1 word on the reading or on reading, subtract 0.3% ± 1 word.Just mean that the reading between this reading (with average) 2.8 ∽ 2.2 all should be in error range.If it is just bigger by B level requirement permissible error scope.
Claims (2)
1, a kind ofly carry out the method for high density detecting polarizability, it is characterized in that: may further comprise the steps with metal electrode:
At first will survey the metal electrode of polarizability device and squeeze into the ground of search coverage, each electrode and sniffer be coupled together with cable according to surveying the distance that needs;
Each unit interval measures by four electrodes and participates in, such as being followed successively by: A, M, N, B, wherein two electrode A, B make transmitting electrode, and two electrode M, N are potential electrode in addition;
At first eliminate M, spontaneous potential Vz (Vz=VN+VJ on the N electrode, wherein VN is electrode M, the spontaneous potential of N, VJ is electrode M, the N polarized potential that the back produces of being driven underground): by sniffer with electrode M, spontaneous potential on the N is measured, by sampling hold circuit and the summing circuit that is provided with in the sniffer, with its elimination, it is the inverting input that spontaneous potential is sent into operational amplifier in the summing circuit, the characteristic of utilizing the two current potential of differential amplifier in-phase input end and inverting input to subtract each other makes circuit be output as zero, and the purpose of spontaneous potential is fallen in realization " top ".
Begin to survey polarizability: in the one-period that polarizability is surveyed, the power supply process of electrode A, B is:---stop and the T2 that delays time---T3 oppositely powers---stops and the T4 that delays time forward power supply T1; Each, T1, T2, T3, T4 were identical actuation time, by potential electrode M, the N current potential when A, the power supply of B forward, measured forward primary field potential value+VP; Stop power supply then, and after being time-delay Δ t slightly, measure forward secondary field potential value+Vs; Again electrode A, B are oppositely powered after having surveyed, measure reverse primary field potential value-VP value during this period; Then, stop power supply equally and measure reverse secondary field potential value-Vs (value of described VP, VS is the voltage difference of M, N two contacts) after being time-delay Δ t slightly; Finished the measurement action of one group of signal of a unit interval t1 to this;
Next move a position downwards together at four electrodes of second unit interval t2 control, repeat identical measurement action successively, for each electrode, last one is transmitting electrode constantly, and next just may be a potential electrode constantly, finish in the unit interval t2 with unit interval t1 in identical operations, be unit interval t3 successively, t4 ... up to unit interval tn, till whole piece detection line top electrode has all been surveyed, promptly finished the surveying work of a detection line;
According to the result of above-mentioned measurement, calculate the polarizability value:
(|+VPi|+|-VPi|)/2＝Vpi
(|+Vsi|+|-Vsi|)/2＝Vsi
Polarizability: η i=(Vsi/VPi) 100%, wherein i=1,2 ... n;
With the data upload host computer, carry out that image shows and data are for further processing.
2, the device that carries out the high density detecting polarizability with metal electrode of the present invention, mainly comprise: the input circuit (4) that is made of impedance inverter circuit, involved filtering circuit (6) that the notch filter circuit constitutes, the amplifier (9), A/D analog to digital converter (10), microcomputerized controller (12), the power supply (11) that are made of floating point amplifier, surveyed line and cable (3), metal electrode (1) by low pass filtered, it is characterized in that: described filtering circuit is connected with a summing circuit (8), a sampling hold circuit (5) and a switch (7); Described metal electrode equidistantly is connected on the described detection line, this metal electrode is connected with described input circuit by cable, the output terminal of this input circuit is connected with the input end of described filtering circuit, an output terminal of this filtering circuit is connected with described sampling hold circuit, the input end of its another output terminal and described summing circuit is connected, the output terminal of described sampling hold circuit is connected with the input end of described switch, and the output terminal of this switch is connected with another input end of described summing circuit; The output terminal of described summing circuit is connected with amplifier input terminal; The output terminal of amplifier is connected with the input end of described A/D analog to digital converter; Described input circuit, filtering circuit, sampling hold circuit, switch, summing circuit, amplifier, analog to digital converter all carry out control linkage with described microcomputerized controller, be that microcomputerized controller is from these parts input desired datas, microcomputerized controller with data processing after, send control signal to associated components again; Be provided with memory unit, inputoutput unit and be provided with CPU and have the executable computer program of CPU in this microcomputerized controller, this computer program operational scheme is: pick up from right current potential, and------------stopping power supply,---------------stopping power supply,---------------calculating polarizability value η---uploads host computer to " top " spontaneous potential to calculate secondary field value Vs to calculate primary field value Vp to survey reverse secondary field current potential in time-delay to survey reverse primary field current potential in oppositely power supply to survey the secondary field current potential in time-delay to survey the primary field current potential in the forward power supply; Microcomputerized controller of the present invention also is connected with the host computer (13) with communication function, polarizability imaging function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100026779A CN100545680C (en) | 2007-01-26 | 2007-01-26 | Survey the method and the device of polarizability with metal electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100026779A CN100545680C (en) | 2007-01-26 | 2007-01-26 | Survey the method and the device of polarizability with metal electrode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101000379A true CN101000379A (en) | 2007-07-18 |
| CN100545680C CN100545680C (en) | 2009-09-30 |
Family
ID=38692429
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100026779A Expired - Fee Related CN100545680C (en) | 2007-01-26 | 2007-01-26 | Survey the method and the device of polarizability with metal electrode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100545680C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819173A (en) * | 2010-05-12 | 2010-09-01 | 中国石油天然气集团公司 | Device for measuring polarizability of rocks |
| CN106291718A (en) * | 2016-08-30 | 2017-01-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Unpolarizable electrode inlayed by a kind of high energy excitation polarization CAVE DETECTION method and high-strength copper pottery |
| CN106501864A (en) * | 2016-11-08 | 2017-03-15 | 珠海国勘仪器有限公司 | The high density electric survey devices and methods therefor that polarizability is measured using metal electrode |
| CN107064227A (en) * | 2017-03-22 | 2017-08-18 | 太原理工大学 | A kind of device and method for monitoring paste filling pipe |
| CN111693570A (en) * | 2020-06-17 | 2020-09-22 | 上海应用技术大学 | Device for measuring reinforcement polarizability based on four-polarization method |
| CN113625634A (en) * | 2021-08-12 | 2021-11-09 | 兰州大学 | Multi-physical-field landslide monitoring system and monitoring method |
| CN113777659A (en) * | 2021-09-10 | 2021-12-10 | 包钢勘察测绘研究院 | Method for saving data acquisition time of high-density electrical method |
| CN116699707A (en) * | 2023-08-01 | 2023-09-05 | 北京建工环境修复股份有限公司 | Earth surface induced polarization detection integrated device and control method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101762825B (en) * | 2009-12-30 | 2012-07-04 | 昆明理工大学 | Data collecting way by high density electrical method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2299743A1 (en) * | 2000-02-22 | 2001-08-22 | Kenneth Duckworth | A method and apparatus for the detection of induced polarization and electrical resistivity in rocks and soils free of the effect of the electromagnetic coupling phenomenon |
| CN1949000B (en) * | 2005-10-13 | 2010-05-12 | 中国科学院地质与地球物理研究所 | Method of measuring polarization rate using common copper electrode |
-
2007
- 2007-01-26 CN CNB2007100026779A patent/CN100545680C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101819173B (en) * | 2010-05-12 | 2012-08-15 | 中国石油天然气集团公司 | Device for measuring polarizability of rocks |
| CN101819173A (en) * | 2010-05-12 | 2010-09-01 | 中国石油天然气集团公司 | Device for measuring polarizability of rocks |
| CN106291718A (en) * | 2016-08-30 | 2017-01-04 | 中国电建集团贵阳勘测设计研究院有限公司 | Unpolarizable electrode inlayed by a kind of high energy excitation polarization CAVE DETECTION method and high-strength copper pottery |
| CN106501864B (en) * | 2016-11-08 | 2019-03-26 | 珠海国勘仪器有限公司 | Utilize the high density electric survey devices and methods therefor of metal electrode measurement polarizability |
| CN106501864A (en) * | 2016-11-08 | 2017-03-15 | 珠海国勘仪器有限公司 | The high density electric survey devices and methods therefor that polarizability is measured using metal electrode |
| CN107064227B (en) * | 2017-03-22 | 2020-01-31 | 太原理工大学 | device and method for monitoring paste filling pipeline |
| CN107064227A (en) * | 2017-03-22 | 2017-08-18 | 太原理工大学 | A kind of device and method for monitoring paste filling pipe |
| CN111693570A (en) * | 2020-06-17 | 2020-09-22 | 上海应用技术大学 | Device for measuring reinforcement polarizability based on four-polarization method |
| CN111693570B (en) * | 2020-06-17 | 2023-02-21 | 上海应用技术大学 | Device for measuring polarizability of reinforcing steel bar based on four-polarization method |
| CN113625634A (en) * | 2021-08-12 | 2021-11-09 | 兰州大学 | Multi-physical-field landslide monitoring system and monitoring method |
| CN113777659A (en) * | 2021-09-10 | 2021-12-10 | 包钢勘察测绘研究院 | Method for saving data acquisition time of high-density electrical method |
| CN113777659B (en) * | 2021-09-10 | 2024-02-02 | 包钢勘察测绘研究院 | Method for saving high-density electrical method data acquisition time |
| CN116699707A (en) * | 2023-08-01 | 2023-09-05 | 北京建工环境修复股份有限公司 | Earth surface induced polarization detection integrated device and control method thereof |
| CN116699707B (en) * | 2023-08-01 | 2023-10-13 | 北京建工环境修复股份有限公司 | Earth surface induced polarization detection integrated device and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100545680C (en) | 2009-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100545680C (en) | Survey the method and the device of polarizability with metal electrode | |
| CN203786207U (en) | Online internal resistance measuring device for storage battery | |
| CN100495074C (en) | Nuclear magnetic resonance and transient electromagnetic combined instrument and method | |
| CN108776355B (en) | Tunnel focuses depth measurement type three-dimensional induced polarization forward probe instrument system | |
| CN202281802U (en) | Three-phase three-wire electric energy meter | |
| CN203502602U (en) | Nuclear magnetic resonance detection device eliminating power frequency harmonic interference | |
| CN201397357Y (en) | Wide-aperture direct current leakage current detection sensor | |
| CN102830334B (en) | Novel photovoltaic grid-connected inverter insulation detection circuit and detection method thereof | |
| CN115097253A (en) | MMC-HVDC direct current transmission line fault distance measurement method and system | |
| CN203101659U (en) | Natural electric field multi-path simultaneous sampling and measuring geophysical exploration instrument | |
| CN203587701U (en) | Online detection circuit for photovoltaic inverter ground insulation resistance | |
| CN201078757Y (en) | Electric leakage and electric larceny recognition indicating circuit for single phase AC power supply circuitry | |
| CN103149593A (en) | Method and device for solving field source stability of natural electric field geophysical prospecting instrument | |
| CN107228886B (en) | The measuring device and method of the conductivity Resistivity testing of water | |
| CN203479395U (en) | Light intensity detection device | |
| CN201464598U (en) | Concealed cable fault detector | |
| CN101329408A (en) | Receiver of underground metal pipeline detector | |
| CN201285409Y (en) | Phase voltage detection circuit | |
| CN203759264U (en) | Nuclear magnetic resonance bipolarity superposition de-noising device based on power frequency full cycle | |
| CN109668946A (en) | A kind of contactless stratified soil moisture monitoring device | |
| CN205501431U (en) | Aluminium cell positive pole distribution electric current precision measurement appearance with self calibration function | |
| CN203164306U (en) | High precision grounding resistor testing instrument | |
| CN102426296A (en) | Surface water conductivity non-contact measurement device and method | |
| CN114152806B (en) | Electric energy sensor with three-way array structure and measurement system and method formed by same | |
| CN107102241A (en) | A kind of fault distance-finding method and device unknown based on R L line parameter circuit values |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20070718 Assignee: Chongqing Geological Instrument Factory Assignor: Beijing Aodi Detector Corp. Contract record no.: 2010500000010 Denomination of invention: Method and device for detecting polarizability using metal electrode Granted publication date: 20090930 License type: Exclusive License Record date: 20100401 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20100228 |