CN106597554A - Emission field source detection apparatus and system - Google Patents
Emission field source detection apparatus and system Download PDFInfo
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- CN106597554A CN106597554A CN201611167177.6A CN201611167177A CN106597554A CN 106597554 A CN106597554 A CN 106597554A CN 201611167177 A CN201611167177 A CN 201611167177A CN 106597554 A CN106597554 A CN 106597554A
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- 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
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
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- 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
Abstract
The invention provides an emission field source detection apparatus and system, and belongs to the field of electromagnetic measurement. The emission field source detection apparatus comprises a current detection module, a synchronization module, a master control module, and an output module used for being connected with a terminal device, the master control module is separately coupled to the current detection module, the synchronization module, and the output module, the master control module detects the emission current of an emission field source through control of the current detection module, detects the emission moment of the emission current through control of the synchronization module, and outputs the emission current and the emission moment to the terminal device for processing and analysis through the output module to obtain an electromagnetic characteristic of an underground geologic body, the current detection module and the synchronization module can synchronously acquire the emission current so that the acquired emission current and the moment are more accurate, measuring errors of the emission current can be reduced, the influence on a transient electromagnetic measuring result is reduced, and the more accurate electromagnetic characteristic of the underground geologic body is obtained.
Description
Technical field
The present invention relates to Transient electromagnetic measure field, in particular to a kind of transmitting field source detection means and system.
Background technology
In the measuring system of half aviation transient electromagnetic, arteries and veins is sent to underground using earth-free loop line or earth electrode
High current is rushed, in geologic body an electromagnetic field is produced, by the underground geologic bodies of an electric field excitation secondary electromagnetic field will be produced.
When Transient Electromagnetic Transmitter field source is closed, sensing secondary electromagnetic field is received using same loop line or another loop line, carried out to mesh
The detection of standard type.The secondary electromagnetic field is the unstable magnetic field produced by the vortex caused by underground good conductor excited target, and ground
The difference of the electrical properties such as electric conductivity and dielectricity of rock or ore body is relevant in shell, and by measuring underground geologic bodies two are produced
The change of secondary electromagnetic field, so as to study space or the Time Distribution of electromagnetic field, to solve various geological problems.
An electromagnetic field, secondary electromagnetic field in transient electromagnetic method can be reflected by the induced electromotive force of transmitting coil, and be felt
Answer the size of electromotive force relevant with the area of transmitting coil with the electric current flow through in transmitting coil.For an electromagnetic field, one
Secondary electromagnetic field intensity is complex with the functional relation of emission current, and secondary electromagnetic field is except relevant with underground medium electromagnetic property
Outward, it is also very complicated with the relation of an electromagnetic field, therefore it is a decision in transient electromagnetic method measurement to launch the electric current of field source
The variable of property.
Half aviation transient electromagnetic investigation system is a kind of wink using " ground launch, aerial reception, ground monitoring " mode
Become electromagnetism observation system.Ground field source transmitting pulse high current produces an electromagnetic field, and aerial reception receives ground with ground monitoring
The secondary electromagnetic field that plastid is produced.The moment of secondary electromagnetic field measurement should start measurement, secondary electricity in an electromagnetism VOF
The size in magnetic field is relevant with the size of an electromagnetic field and transmitting pulse current.The area of transmitting coil in the entire system
It is a fixed value after typically laying.Change of the change of emission current on an electromagnetic field affects to be even more important, here it is
Carry out launching the reason for field source is monitored and be located.Letter of the signal received in the air in half aviation Transient electromagnetic measure than ground receiver
It is number much smaller, the impact to measurement result is brought in order to reduce emission current, therefore carry out in the origin system of launching site accurate
The x time and size of detection emission current is very necessary.
Therefore, how effectively to be accurately detected by the x time and size to emission current, so as to improve inspection
The x time of emission current and the accuracy of size are surveyed, to reduce the measure error of emission current so that reduce to transient electrical
The impact of magnetic measurement results, obtains the electromagnetic signature of more accurate underground geologic bodies, is current urgent problem.
The content of the invention
It is an object of the invention to provide a kind of transmitting field source detection means and system, it can be by emission current
X time and size are effectively accurately detected, so as to improve detection emission current x time and size it is accurate
Property, to obtain the electromagnetic signature of more accurate underground geologic bodies.
What embodiments of the invention were realized in：
In a first aspect, the embodiment of the present invention provides a kind of transmitting field source detection means, the transmitting field source detection means bag
Include current detection module, synchronization module, main control module and the output module for connecting terminal device, the main control module point
Do not couple with the current detection module, the synchronization module, the output module；The synchronization module is used for detection transmitting electricity
The x time of stream；The current detection module is used for the size of the emission current for detecting the x time；The master control mould
Block is used to control the current detection module and the synchronization module, and receives the transmitting that the current detection module sends
The x time of the emission current that the size of electric current and the synchronization module send；The output module is used for will be described
The size of the x time of emission current and the emission current is sent to the terminal device, so that the terminal device pair
The size of the x time of the emission current and the emission current is analyzed and processes, to obtain underground geologic bodies
Electromagnetic signature.
In a first aspect, the embodiment of the present invention provides a kind of transmitting field source detecting system, the transmitting field source detecting system bag
Transmitting coil and transmitting field source detection means are included, the transmitting coil is coupled with the transmitting field source detection means.
The beneficial effect of the embodiment of the present invention is：
The embodiment of the present invention provides a kind of transmitting field source detection means and system, by main control module respectively with the electric current
Detection module, synchronization module coupling, so as to the main control module can control described of the current detection module detection
The size of the emission current penetrated in field source, while controlling sending out for the emission current in the synchronization module detection transmitting field source
Penetrate the moment, main control module will receive the size and the synchronous mould of the emission current that the current detection module sends
The x time of the emission current that block sends is exported to terminal device by the output module and is processed and analyzed, with
Obtain the electromagnetic signature of underground geologic bodies；The current detection module can be synchronized to emission current with the synchronization module and adopted
Collection so that the size of the emission current of collection and moment are more accurate, such that it is able to reduce the measure error of emission current, make
The impact to Transient electromagnetic measure result must be reduced, the electromagnetic signature of more accurate underground geologic bodies is obtained.
Description of the drawings
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to what is used needed for embodiment
Figure is briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, thus be not construed as it is right
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 is the structured flowchart that the embodiment of the present invention launches field source detection means；
Fig. 2 is a kind of circuit theory diagrams of sensor assembly provided in an embodiment of the present invention；
Fig. 3 is a kind of circuit theory diagrams of analog to digital conversion circuit provided in an embodiment of the present invention；
Fig. 4 is a kind of circuit theory diagrams of output module provided in an embodiment of the present invention；
Fig. 5 is a kind of structured flowchart of transmitting field source detecting system provided in an embodiment of the present invention.
Icon：200- launches field source detecting system；210- transmitting coils；100- launches field source detection means；110- electric currents
Detection module；112- sensor assemblies；The main control chips of 1122- first；114- analog-to-digital conversion modules；The main control chips of 1142- second；
120- synchronization modules；122- synchronizing signal control modules；124-GPS modules；126- constant temperature crystals；130- output modules；132-
3rd main control chip；140- main control modules.
Specific embodiment
To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
The a part of embodiment of the present invention, rather than the embodiment of whole.Present invention enforcement generally described and illustrated in accompanying drawing herein
The component of example can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiments of the invention below to providing in the accompanying drawings is not intended to limit claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiment in the present invention, this area is common
The every other embodiment that technical staff is obtained under the premise of creative work is not made, belongs to the model of present invention protection
Enclose.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it need not be further defined and is explained in subsequent accompanying drawing.
Additionally, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that indicating or implying
Relative importance.
In describing the invention, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " coupling ",
" connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected, or being detachably connected, or integratedly connect
Connect；Can be mechanically connected, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, can
Being the connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood with concrete condition
Concrete meaning in the present invention.
Other features and advantages of the present invention will illustrate in subsequent specification, also, partly become from specification
It is clear that or being understood by implementing the embodiment of the present invention.The purpose of the present invention and other advantages can be by being write
Specifically noted structure is realizing and obtain in specification, claims and accompanying drawing.
Refer to Fig. 1, Fig. 1 is a kind of structured flowchart of transmitting field source detection means 100 provided in an embodiment of the present invention, institute
Stating transmitting field source detection means 100 includes current detection module 110, synchronization module 120, main control module 140 and for connecting
The output module 130 of terminal device, the main control module 140 respectively with the current detection module 110, the synchronization module
120th, the output module 130 is coupled.
In the present embodiment, the main control module 140 can be single-chip microcomputer, for controlling the current detection module 110
With the synchronization module 120, and size and the institute of the emission current that the storage current detection module 110 sends are received
The x time of the emission current of the transmission of synchronization module 120 is stated, then by the size of the emission current and the transmitting
The x time of electric current is sent to output module 130.
The size of the emission current of the electromagnetic field that the current detection module 110 is used in detection transmitting field source, institute
State sensor assembly 112 and analog-to-digital conversion module 114 that current detection module 110 includes for gathering emission current signal, institute
State sensor assembly 112 to couple with the analog-to-digital conversion module 114, the analog-to-digital conversion module 114 and the main control module 140
Coupling.
Used as a kind of embodiment, the sensor assembly 112 is sensed using the 100A based on open loop Hall effect principle
Device, the detectable scope of the sensor is big, and the scope that emission current is can detect in the present embodiment is 0-100A, its response speed
Hurry up, response speed can reach 3us once, can be used to measure alternating current and direct current, pulsating current etc..
Refer to Fig. 2, Fig. 2 is a kind of circuit theory diagrams of sensor assembly 112 provided in an embodiment of the present invention, the biography
The emission current signal of the electromagnetic field that sensor module 112 is used in collection transmitting field source, it specifically includes the first master control core
Piece 1122, the first electric capacity C1, the second electric capacity C2, the 3rd electric capacity C3, the 4th electric capacity C5, the 5th electric capacity C6, first resistor R1, second
Resistance R2,3rd resistor R3, the 4th resistance R4.
One end of the first port of first main control chip 1122 and the first electric capacity C1, the second electric capacity C2
One end, one end of the 3rd electric capacity C3, one end of the 4th electric capacity C4 couple and are grounded, first main control chip 1122
Second port couple with one end of 3rd resistor R3, the 3rd port and described first of first main control chip 1122
The other end of electric capacity C1, the other end of the second electric capacity C2, one end coupling of first resistor R1, the first master control core
4th port of piece 1122 and the other end of the 3rd electric capacity C3, the other end, the second resistance of the 4th electric capacity C4
One end coupling of R2, the other end of 3rd resistor R3 one end, the 4th resistance R4 respectively with the 5th electric capacity C5
One end coupling, the other end of the 5th electric capacity C5 couples and is grounded with the other end of the 4th resistance R4, the described 4th
One end of resistance R4 couples with the analog-to-digital conversion module 114, another termination cathode voltage of first resistor R1, and described
Another termination cathode voltage of two resistance R2.
Wherein, as a kind of embodiment, first main control chip 1122 is a kind of integrated chip, and it is by Hall unit
The circuits such as part, mu balanced circuit, amplifier, Schmidt trigger, open collector are integrated in first main control chip
On 1122.
The emission current signal that the analog-to-digital conversion module 114 is used to export the sensor assembly 112 carries out modulus
Conversion, obtains emission current signal voltage value.Used as a kind of embodiment, the analog-to-digital conversion module 114 can adopt ADS1274
The analog-digital converter of model, it is 24 delta-sigma analog-digital converters of 4 passage, and its data transition rate can
Up to 144ksps.And the analog-digital converter can provide the outstanding AC of combination of outstanding DC precision and a uniqueness
Energy.The delta-sigma analog-digital converters have the advantages that high-resolution, high integration, low cost and easy to use.
The analog-to-digital conversion module 114 includes multiple analog to digital conversion circuits, in the present embodiment, because analog-to-digital conversion module
114 adopt 4 passage, 24 delta-sigma analog-digital converters, so multiple analog to digital conversion circuits are four, refer to figure
3, Fig. 3 is a kind of circuit theory diagrams of analog to digital conversion circuit provided in an embodiment of the present invention, each analog-digital conversion circuit as described bag
Include first port P1, the second main control chip 1142, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8,
Nine resistance R9, the tenth resistance R10, the 11st resistance R11, the 12nd resistance R12, the 13rd resistance R13, the 14th resistance R14,
15th resistance R15, the 6th electric capacity C6, the 7th electric capacity C7, the 8th electric capacity C8, the 9th electric capacity C9, the tenth electric capacity C10, the first surpass
Level electric capacity Q1, the second super capacitor Q2.
Wherein, the first pin of first port P1 is coupled with one end of the 5th resistance R5, the first port
The second pin of P1 is coupled with one end of the 6th resistance R6, and the other end of the 5th resistance R5 is led respectively with described second
Control chip 1142, one end of the 7th resistance R7, one end coupling of the 9th electric capacity C9, the other end point of the 6th resistance R6
Do not couple with one end of second main control chip 1142, one end of the 8th resistance R8, the tenth electric capacity C10, it is described
It is one end of 9th resistance R9 and one end respectively with the 6th electric capacity C6, the positive terminal of the first super capacitor Q1, described
Second main control chip 1142 is coupled, and the other end of the 6th electric capacity C6 is coupled simultaneously with the negative pole end of the first super capacitor Q1
Ground connection, one end of the 8th electric capacity C8 couples with second main control chip 1142, another termination of the 8th electric capacity C8
Ground, one end of the tenth resistance R10 respectively with second main control chip 1142, the negative pole of the second super capacitor Q2
End, one end coupling of the 7th electric capacity C7, the positive terminal of the second super capacitor Q2 is another with the 7th electric capacity C7's
End couples and is grounded, the other end of the 9th electric capacity C9 respectively with second main control chip 1142, the 11st resistance
One end coupling of R11, the other end of the tenth electric capacity C10 respectively with second main control chip 1142, the described 13rd electric
One end coupling of resistance R13, the other end of the 8th resistance R8 one end respectively with the 12nd resistance R12, the described tenth
One end coupling of five resistance R15, the other end of the 11st resistance R11 respectively with the other end, the institute of the 7th resistance R7
One end coupling of the 14th resistance R14 is stated, one end of the 11st resistance R11, the other end of the 12nd resistance R12 are equal
Couple with second main control chip 1142, the other end of the 14th resistance R14, the 15th resistance R15 it is another
End couples with the main control module 140.
In addition, the mode employed in half aviation transient electromagnetic investigation system is " ground launch, aerial reception " mode,
This requires that ground launch and aerial acceptance must comply with strict sequential, and to ensure regular hour precision, sets for this
The circuit of synchronization module 120 is counted.
The synchronization module 120 includes GPS module 124, constant temperature crystal 126 and synchronizing signal control module 122, described
GPS module 124, the constant temperature crystal 126 are coupled with the synchronizing signal control module 122, and the synchronizing signal controls mould
Block 122 is coupled with the output module 130.
Fig. 1 is refer to, wherein, the GPS module 124 and the constant temperature crystal 126 are used in the synchronizing signal
The x time of the emission current is detected under the control of control module 122.
Used as a kind of embodiment, the GPS module 124 can be integrated with RF radio frequency chips, baseband chip and core
CPU, and the integrated circuit constituted plus associated peripheral circuits.In the present embodiment, the collection of the GPS module 124 is sent out
Used as the fundamental clock of the synchronization control module, it is adopted the pps pulse per second signal of the emission current of the electromagnetic field penetrated in field source
The pps pulse per second signal of the emission current of electromagnetic field of collection can be reached within 1us.
When due to natural cause or the factor of some, the GPS module 124 cannot be collected in transmitting field source once
During the pps pulse per second signal of the emission current of electromagnetic field, at this moment just there is constant temperature crystal 126 to be used as synchronizing signal control module 122
So as to produce a second control signal, its synchronization accuracy in one hour can reach 10us to fundamental clock.
Used as a kind of embodiment, the synchronizing signal control module 122 can be a kind of IC chip, with signal
Disposal ability.It can be a kind of general processor, including central processing unit (Central Processing Unit, referred to as
CPU), network processing unit (Network Processor, abbreviation NP) etc.；Can also be digital signal processor (DSP), special
Integrated circuit (ASIC), ready-made programmable gate array (FPGA) either other PLDs, discrete gate or transistor
Logical device, discrete hardware components.It can realize or perform disclosed each method in the embodiment of the present application, step and patrol
Collect block diagram.General processor can be microprocessor or the processor can also be any conventional processor etc..
In the present embodiment, the synchronizing signal control module 122 is included at least single-chip microcomputer, PLD
It is a kind of.
In the present embodiment, the single-chip microcomputer can adopt C8051F020, the mixed signal that C8051F020 is completely integrated
System-level MCU chip, with 64 numeral I/O pins.Can conveniently carry out each device using its abundant interface in systems
Control and data read-out, carry out USB interface extension design, using the number of its high speed using its bus addressable 64K addressability
According to disposal ability, the transfer function of data is readily achieved.
Used as a kind of embodiment, the PLD (Programmable Logic Device, PLD) can
Think CPLD (Complex Programmable Logic Device, CPLD), or field-programmable
Gate array (Field-Programmable Gate Array, FPGA).
In the present embodiment, CPLD (Complex Programmable Logic can be adopted
Device, CPLD), it has the advantages that flexible in programming, integrated level are high, designs and develops cycle is short, scope of application width.
If the emission current frequency acquisition of the transmitting field source detection means 100 is 50KHz, with the analog-digital converter of 24
Sampling, the data volume for having a 50*3=150KB per second.If using the baud rate of serial ports 115200BPS, being merely able to transmit 10KB's
Data, therefore the serial ports transmission data can not meet requirement, it is necessary to using USB interface.
In the present embodiment, output module 130 is designed based on usb circuit, is connected with terminal device, is adopted
The various quick USB communication interface that the USB interface based on FT245BM that FTDI companies provide is designed.The communication interface is without compiling
The program of firmware in piece is write, and the PC on upper strata uses official's driver that FTDI companies are provided.The output mould
Block 130 is used to for the size of the x time of the emission current and the emission current to be sent to the terminal device, with
The terminal device is set to be analyzed and process the x time of the emission current and the size of the emission current, with
Obtain the electromagnetic signature of underground geologic bodies.
Refer to Fig. 4, Fig. 4 is a kind of circuit theory diagrams of output module 130 provided in an embodiment of the present invention, the output
Module 130 includes the 3rd main control chip 132, second port P2, the 16th resistance R16, the 17th resistance R17, the 18th resistance
R18, the 19th resistance R19, the 20th resistance R20, the 21st resistance R21, the 22nd resistance R22, the 11st electric capacity
C11, the 12nd electric capacity C12, the 13rd electric capacity C13, the 14th electric capacity C15, crystal Y1；First pin of second port P2
One end respectively with the 16th resistance R16, one end of the 11st electric capacity C11 couple, and the of second port P2
Two pins are coupled with one end of the 17th resistance R17, the 3rd pin and the 18th resistance of second port P2
One end coupling of R18, the other end of the 18th resistance R18 is coupled with the 3rd main control chip 132, the second port
4th pin of P2 is coupled with one end of the 19th resistance R19, the other end of the 19th resistance R19 respectively with it is described
One end of 20th resistance R20, the 21st resistance R21 one end coupling, the other end of the 20th resistance R20 with
Power supply connects, and the other end of the 21st resistance R21 is coupled with the 3rd main control chip 132, the 17th resistance
The other end of R17 is coupled with one end of the 22nd resistance R22, the other end of the 22nd resistance R22 with it is described
3rd main control chip 132 is coupled, and the other end of the 16th resistance R16 is coupled with the other end of the 11st electric capacity C11
And be grounded, the other end of the 16th resistance R16 and the tie point of the other end of the 11st electric capacity C11 respectively with it is described
One end of 12nd electric capacity C12, one end coupling of the 13rd electric capacity C13, the other end difference of the 12nd electric capacity C12
One end, the 3rd main control chip 132 with the crystal Y1 couples, the other end of the 13rd electric capacity C13 respectively with institute
State the other end of crystal Y1, the 3rd main control chip 132 to couple, one end of the 14th electric capacity C14 and the described 3rd is led
Control chip 132 is coupled, the other end ground connection of the 14th electric capacity C14.
In the present embodiment, the 3rd main control chip 132 uses FT245BM chips, the main work(of the FT245BM chips
It can be the bi-directional conversion that USB serial data form and parallel data format are realized under hardware logic effect internally.Terminal device
Data exchange can be carried out by the USB interface and FT245BM, FT245BM is then logical with lower 8-digit microcontroller by parallel mode
Letter, transfer rate is maximum up to 1MB/S.
It is further to note that the terminal device in the present embodiment can be PC (personal
Computer, PC), panel computer, the terminal such as personal digital assistant (personal digital assistant, PDA).The end
End equipment is used to that the x time of the emission current and the size of the emission current to be analyzed and processed, to obtain
The electromagnetic signature of underground geologic bodies, for example, electrical properties feature such as electric conductivity and dielectricity of rock or ore body etc. in the earth's crust.
Refer to Fig. 5, Fig. 5 is a kind of structured flowchart of transmitting field source detecting system 200 provided in an embodiment of the present invention, institute
Stating transmitting field source detecting system 200 includes transmitting coil 210 and above-mentioned transmitting field source detection means 100, the transmitting coil
210 couple with the transmitting field source detection means 100.
The transmitting coil 210 can send pulse high current to underground, and in geologic body an electromagnetic field is produced, by once electricity
The underground geologic bodies of magnetic excitation will produce secondary field.Electromagnetic field, secondary electromagnetic field can be by the induced electricity of transmitting coil 210
Kinetic potential reflects, and the size of induced electromotive force is relevant with the area of transmitting coil 210 with the electric current flow through in transmitting coil 210,
So, the transmitting field source detection means 100 be used for more accurate detection flow through transmitting coil 210 electric current size or when
Carve, so as to reducing the measure error of emission current, reduce the impact to Transient electromagnetic measure result.
In sum, the embodiment of the present invention provides a kind of transmitting field source detection means and system, is distinguished by main control module
Couple with the current detection module, the synchronization module, so as to the main control module can control the current detection module
The size of the emission current in the detection transmitting field source, while controlling sending out in the synchronization module detection transmitting field source
The x time of radio stream, main control module by receive the emission current that the current detection module sends size and
The x time of the emission current that the synchronization module sends is exported to terminal device by the output module
Reason and analysis, to obtain the electromagnetic signature of underground geologic bodies；The current detection module can be to transmitting electricity with the synchronization module
Stream synchronizes collection so that the size of the emission current of collection and moment are more accurate, such that it is able to reduce emission current
Measure error, reduce impact to Transient electromagnetic measure result, obtain the electromagnetic signature of more accurate underground geologic bodies.
The preferred embodiments of the present invention are the foregoing is only, the present invention is not limited to, for the skill of this area
For art personnel, the present invention can have various modifications and variations.It is all within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within the scope of the present invention.
Claims (10)
1. a kind of transmitting field source detection means, it is characterised in that the transmitting field source detection means includes current detection module, same
Step module, main control module and the output module for connecting terminal device, the main control module respectively with the current detecting
Module, the synchronization module, output module coupling；
The synchronization module is used to detect the x time of emission current；
The current detection module is used for the size of the emission current for detecting the x time；
The main control module is used to control the current detection module and the synchronization module, and receives the current detection module
The x time of the emission current that the size and the synchronization module of the emission current for sending sends；
The output module is described for the size of the x time of the emission current and the emission current to be sent to
Terminal device, so that the terminal device is carried out point to the x time of the emission current and the size of the emission current
Analysis and process, to obtain the electromagnetic signature of underground geologic bodies.
2. it is according to claim 1 transmitting field source detection means, it is characterised in that the current detection module include for
The sensor assembly and analog-to-digital conversion module, the sensor assembly and the analog-to-digital conversion module coupling of collection emission current signal
Close, the analog-to-digital conversion module is coupled with the main control module.
3. it is according to claim 2 to launch field source detection means, it is characterised in that the sensor assembly includes the first master
It is control chip, the first electric capacity, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity, first resistor, second resistance, the 3rd electric
Resistance, the 4th resistance；One end of the first port of first main control chip and first electric capacity, the one of second electric capacity
End, one end of the 3rd electric capacity, one end of the 4th electric capacity couple and are grounded, the second port of the main control chip and institute
State one end coupling of 3rd resistor, the 3rd port of first main control chip and the other end of first electric capacity, described the
One end coupling of the other end of two electric capacity, the first resistor, the 4th port of first main control chip is electric with the described 3rd
The other end of appearance, the other end of the 4th electric capacity, one end coupling of the second resistance, the other end point of the 3rd resistor
One end of one end, the 4th resistance not with the 5th electric capacity couples, the other end and the described 4th of the 5th electric capacity
The other end of resistance is coupled and is grounded, and one end of the 4th resistance couples with the analog-to-digital conversion module.
4. it is according to claim 2 to launch field source detection means, it is characterised in that the analog-to-digital conversion module includes multiple
Analog to digital conversion circuit, each analog-digital conversion circuit as described include first port, the second main control chip, the 5th resistance, the 6th resistance,
It is 7th resistance, the 8th resistance, the 9th resistance, the tenth resistance, the 11st resistance, the 12nd resistance, the 13rd resistance, the 14th electric
Resistance, the 15th resistance, the 6th electric capacity, the 7th electric capacity, the 8th electric capacity, the 9th electric capacity, the tenth electric capacity, the first super capacitor, second
Super capacitor；First port one end respectively with the 5th resistance, one end of the 6th resistance couple, and the described 5th
The other end of resistance is coupled respectively with one end of second main control chip, one end of the 7th resistance, the 9th electric capacity,
The other end of the 6th resistance respectively with second main control chip, one end of the 8th resistance, the tenth electric capacity one end
Coupling, one end of the 9th resistance and one end, the positive terminal of first super capacitor, institute respectively with the 6th electric capacity
The coupling of the second main control chip is stated, the other end of the 6th electric capacity couples with the negative pole end of first super capacitor, described the
One end of eight electric capacity couples with second main control chip, one end of the tenth resistance respectively with second main control chip,
One end coupling of the negative pole end of second super capacitor, the 7th electric capacity, the positive terminal of second super capacitor and institute
The other end for stating the 7th electric capacity is coupled and is grounded, the other end of the 9th electric capacity respectively with second main control chip, described
One end coupling of the 11st resistance, the other end of the tenth electric capacity respectively with second main control chip, the described 13rd electric
One end coupling of resistance, the other end of the 8th resistance one end respectively with the 12nd resistance, the 15th resistance
One end couples, the other end of the 11st resistance other end respectively with the 7th resistance, the one of the 14th resistance
End coupling, one end of the 11st resistance, the other end of the 12nd resistance are coupled with second main control chip, institute
State the other end of the 14th resistance, the other end of the 15th resistance to couple with the main control module.
5. it is according to claim 1 transmitting field source detection means, it is characterised in that the synchronization module include GPS module,
Constant temperature crystal and synchronizing signal control module, the GPS module, the constant temperature crystal with the synchronizing signal control module
Coupling, the synchronizing signal control module is coupled with the output module；
The GPS module and the constant temperature crystal are used to detect described sending out under the control of the synchronizing signal control module
The x time of radio stream.
6. it is according to claim 5 to launch field source detection means, it is characterised in that the synchronizing signal control module includes
One kind at least in single-chip microcomputer, PLD.
7. it is according to claim 6 to launch field source detection means, it is characterised in that the PLD is complexity
PLD.
8. it is according to claim 1 to launch field source detection means, it is characterised in that the output module includes the 3rd master control
Chip, second port, the 16th resistance, the 17th resistance, the 18th resistance, the 19th resistance, the 20th resistance, the 21st
Resistance, the 22nd resistance, the 11st electric capacity, the 12nd electric capacity, the 13rd electric capacity, the 14th electric capacity, crystal；Second end
Mouth one end respectively with the 16th resistance, one end of the 11st electric capacity couple, the second port and the described tenth
One end of seven resistance, one end of the 18th resistance, the 19th resistance one end coupling, the 18th resistance it is another
One end couples with the 3rd main control chip, the other end of the 19th resistance one end respectively with the 20th resistance,
One end coupling of the 21st resistance, the other end of the 21st resistance is coupled with the 3rd main control chip, institute
The other end for stating the 17th resistance is coupled with one end of the 22nd resistance, the other end of the 22nd resistance and institute
The coupling of the 3rd main control chip is stated, the other end of the 16th resistance is coupled and be grounded with the other end of the 11st electric capacity,
The other end of the 16th resistance and the tie point of the other end of the 11st electric capacity respectively with the 12nd electric capacity
One end, one end coupling of the 13rd electric capacity, it is the other end of the 12nd electric capacity one end respectively with the crystal, described
3rd main control chip is coupled, the other end of the 13rd electric capacity other end, the 3rd master control core respectively with the crystal
Piece is coupled, and one end of the 14th electric capacity couples with the 3rd main control chip, the other end ground connection of the 14th electric capacity.
9. it is according to claim 1 to launch field source detection means, it is characterised in that the current detection module detection transmitting
The magnitude range of electric current is 0-100A.
10. it is a kind of to launch field source detecting system, it is characterised in that the transmitting field source detecting system includes transmitting coil and right
The arbitrary described transmitting field source detection means of 1-9 is required, the transmitting coil is coupled with the transmitting field source detection means.
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| CN201611167177.6A CN106597554B (en) | 2016-12-16 | 2016-12-16 | Emit field source detection device and system |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020080057A1 (en) * | 1999-03-22 | 2002-06-27 | Alexander Peter Annan | Timing and control and data acquisition for a multi transducer ground penetrating radar system |
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2016
- 2016-12-16 CN CN201611167177.6A patent/CN106597554B/en not_active Expired - Fee Related
Patent Citations (2)
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|---|---|---|---|---|
| US20020080057A1 (en) * | 1999-03-22 | 2002-06-27 | Alexander Peter Annan | Timing and control and data acquisition for a multi transducer ground penetrating radar system |
| CN105044781A (en) * | 2015-06-04 | 2015-11-11 | 成都理工大学 | System and method for generating synchronous transient electromagnetic signal source |
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