CN207601331U - A kind of high-precision centralization geoelectric survey instrument - Google Patents
A kind of high-precision centralization geoelectric survey instrument Download PDFInfo
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- CN207601331U CN207601331U CN201721543343.8U CN201721543343U CN207601331U CN 207601331 U CN207601331 U CN 207601331U CN 201721543343 U CN201721543343 U CN 201721543343U CN 207601331 U CN207601331 U CN 207601331U
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Abstract
The utility model is related to a kind of high-precision centralization geoelectric survey instrument, including display device, master computer including main controller and signal pickup assembly, and the physical prospecting centralized control equipment being connect with master computer, single main controller connects at least two electrodes simultaneously by physical prospecting centralized control equipment, physical prospecting centralized control equipment includes sequentially connected multi-channel analog switch circuit, precise amplifying circuit, 50Hz filter circuits, programmable amplifying circuit, band logical amplifying circuit and peak-detector circuit, band logical amplifying circuit and peak-detector circuit difference connection signal harvester, signal pickup assembly connects main controller, main controller includes master controller, data storage circuitry and data derived circuit, master controller connects data storage circuitry respectively, data derived circuit, display device and programmable amplifying circuit.Compared with prior art, the utility model has many advantages, such as adaptively to switch corresponding amplification factor, and more easily carries out multi-electrode control.
Description
Technical field
Exploration or field of detecting the utility model is related to electric or magnetic, more particularly, to a kind of centralization ground electrical measurement of high-precision
Measure instrument.
Background technology
So-called ground electricity is exactly the set for the various electric fields for being present in nature, mainly includes following three main fields
Source：1st, industrial diffusing electric current；2nd, earth interior geological movement and celestial sphere revolution rotation during produced by electric field；3rd, cosmic space
Lightening activity and the activity of other universe are propagated through the electromagnetic wave come；By study on monitoring electric changing rule can be to will
Earthquake disaster occurs and is predicted that this is a kind of most effective method of prediction earthquake generally acknowledged at present.It secondly can be with Study of The Underground
The buried depth and storage capacity of water and geothermal spring particularly detect less than 2000 meters of geothermal spring detection, at present state's interior energy
It is fewer and fewer to detect less than 2000 meters of instrument, which has filled up this blank.
At present, electric field source feature in combination, needs the high-precision geoelectricity variation for measuring multiple spot that could reflect bigger
The geoelectricity variation of area, therefore there is an urgent need for can be carried out at the same time the multiple spot equipment that accurately Electrical change measures.
Utility model content
The purpose of this utility model is exactly to provide a kind of high-precision collection to overcome the problems of the above-mentioned prior art
Chinese style geoelectric survey instrument.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of high-precision centralization geoelectric survey instrument, the master including display device, main controller and signal pickup assembly
Computer and the physical prospecting centralized control equipment being connect with master computer, single main controller are connected to simultaneously by physical prospecting centralized control equipment
Few two electrodes, the physical prospecting centralized control equipment include sequentially connected multi-channel analog switch circuit, precise amplifying circuit, 50Hz
Filter circuit, programmable amplifying circuit, band logical amplifying circuit and peak-detector circuit, the band logical amplifying circuit and peak detection
Circuit distinguishes connection signal harvester, signal pickup assembly connection main controller, and the main controller includes main control
Device, data storage circuitry and data derived circuit, the master controller connect data storage circuitry, data export electricity respectively
Road, display device and programmable amplifying circuit.
Preferably, the multi-channel analog switch circuit input terminal connects each electrode channel, the multi-channel analog respectively
Switching circuitry output connects precise amplifying circuit.
Preferably, the multi-channel analog switch circuit uses ADG1608 multiplexers.
Preferably, the programmable amplifying circuit uses in-phase proportion computing circuit.
Preferably, the master controller is equipped with GPRS data interface, and the master controller is connected with GPS modules.
Preferably, the peak-detector circuit include the first amplifier, the second amplifier, first resistor, second resistance,
3rd resistor, the 4th resistance, the 5th resistance, the first diode, the second diode and the first capacitance, first amplifier are born
Pole input terminal is connected in series with first resistor and is followed by voltage input end, and the first amplifier anode input end grounding is described
First amplifier out is sequentially connected in series the negative input that the second amplifier is connected after the second diode, the 4th resistance,
First diode cathode is connected between first resistor and the first amplifier negative input, first diode
Anode is connected between the first amplifier out and the second diode, described second resistance one end be connected to first resistor with
Between first amplifier negative input, the second resistance other end is connected between the second diode and the 4th resistance,
Described 3rd resistor one end is connected between voltage input end and first resistor, and the 3rd resistor other end is connected to
Between four resistance and the second amplifier negative input, the second amplifier anode input end grounding, described second puts
Big device output terminal connection voltage output end, the 5th described resistance one end is connected to the 4th resistance and the second amplifier cathode inputs
Between end, the other end is connected between the second amplifier out and voltage output end, first capacitance and the 5th resistance
It is connected in parallel, voltage input end connection band logical amplifying circuit, the voltage output end connection signal harvester.
Preferably, the diode in the peak-detector circuit uses high-frequency diode.
Compared with prior art, the utility model has the following advantages：
1st, same survey meter carries out multichannel measurement：Although multichannel reconnaissance physical prospecting instrument simultaneously can be carried out in the prior art,
Same survey meter can not be used to carry out a data to monitor simultaneously, the utility model is then set by circuit, compensates for the defect,
It realizes that the ground electricity DATA REASONING of multiple spot is concentrated on same survey meter to complete, the ground electrical measurement measured required for concentrating by cable
It measures signal and switches at high speed circuit to concentrate geoelectric survey.
2nd, accurate control signal amplifies：Setting peak-detector circuit simultaneously connects master controller, and master controller output terminal connects
Programmable amplifying circuit is connect, so as to control programmable amplifying circuit, enables signals to adaptively switch corresponding amplification factor；
3rd, master controller connection GPRS module and GPS module realize the storage of high in the clouds data and remote control；
4th, the use of ADG1608 multiplexers allows to directly into row of channels switch, and avoids setting for isolation module
It puts, more easily carries out multi-electrode control, structure complexity reduces, and production and practical application are at low cost；
5th, the signal that 50Hz filter circuits cause is more smooth, elongate member service life；
6th, measurement range upper frequency limit is improved using high-frequency diode in peak-detector circuit.
Description of the drawings
Fig. 1 the utility model circuit module connection diagrams；
Fig. 2 multi-channel analog switching switch schematic diagrames；
Fig. 3 programme-controlled gain amplifying circuit functional block diagrams；
Fig. 4 peak-detector circuit block diagrams；
Fig. 5 governor circuit block diagrams；
Fig. 6 electrode module schematic diagrames；
Fig. 7 channel switching circuit figures；
The active double T rejector circuits figures of Fig. 8；
Fig. 9 precise amplifying circuit schematic diagrams.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that described embodiment is the part of the embodiment of the utility model rather than all implements
Example.Based on the embodiment in the utility model, those of ordinary skill in the art institute under the premise of creative work is not made
The every other embodiment obtained should all belong to the range of the utility model protection.
Embodiment
The centralized geoelectric survey instrument of the utility model high-precision quick multimetering ground electricity number in a number of units is according to measuring instrument
According to each point data enters DATA REASONING instrument by cable, not only cost-effective but also can obtain multiple spot geoelectricity variation data, low cost
Large data sets in DATA REASONING instrument, DATA REASONING instrument locally carry out data storage can also directly be sent out by GPRS module
It is sent to cloud server.A large amount of effectively electric data are provided with for earthquake advanced prediction and big depth investigation and prospecting.
A kind of novel high-precision centralization geoelectric survey instrument, system are mainly switched by the input of 1-n paths signal, channel
Control circuit, program control filtering circuit, signal acquisition circuit, master control and data memory module, bluetooth communication, GPRS communication moulds
The compositions such as block and cloud server.The input of wherein 1-n paths signal is made of positive and negative nonmetallic grounding electrode group, to 1-
Signal input in n paths, is switched, the effective mistake of program control filtering circuit using analog switching circuit is switched at high speed into row of channels
Useful seismic electrical signal is filtered, signal acquisition circuit is realized using high performance 24 delta sigma A/D converters to small-signal height
Effect conversion, master control and data memory module are using low power consumption CPU and pre-install liunx operating systems data is controlled to acquire and deposit
Storage, bluetooth communication can connect to set and data exchange with equipment such as IPAD, selectively add in GPRS communication modules
And the effective realization Internet of Things data of cloud server stores and remote control.
Single main controller connects at least two electrodes simultaneously by physical prospecting centralized control equipment, as shown in Figure 1, physical prospecting centralized control equipment
It is put including sequentially connected multi-channel analog switch circuit, precise amplifying circuit, 50Hz filter circuits, programmable amplifying circuit, band logical
Big circuit and peak-detector circuit, band logical amplifying circuit and peak-detector circuit difference connection signal harvester, signal acquisition
Device connects main controller, and main controller includes master controller, data storage circuitry data derived circuit and GPS module, master controller
Data storage circuitry, data derived circuit, display device and programmable amplifying circuit, master controller are connected respectively is additionally provided with GPRS numbers
According to interface.The multi-channel analog switch circuit uses ADG1608 multiplexers.Multi-channel analog switch circuit input terminal is distinguished
Connect each electrode channel, multi-channel analog switch circuit output terminal connection precise amplifying circuit.Programmable amplifying circuit is used compared with
Example computing circuit.
Each measuring electrode can be arranged arbitrarily on the ground.GPS is used in terms of the method for synchronization into the precise synchronization of row clock.
(1) electrode module
Fig. 6 show electrode module, and electrode module is made of multiple electrodes stick, in order to save electrode bar and connecting cable,
Identical electrode bar and connecting cable, which are realized, to be shared.
(2) switching circuit：
Switching circuit is switched over using analog switch, controls A0, A1 by microcontroller, the level of A2 pins can make
Different channel conductives.As shown in Figure 2.
Fig. 7 show multi-channel analog switching switch connection diagram, and cutting for channel is realized using ADG1608 multiplexers
It changes, so that each electrode can easily access subsequent conditioning circuit, device simplifies, and each interchannel is not required to isolation module.
(3) precise amplifying circuit：The amplification of signal is realized using active high-precision amplifying, amplification factor is：X10,
X50.As shown in figure 9, the resistance value of adjustment RG realizes the adjustment of amplification factor.
(4) 50Hz filter circuits
For improve complete machine antijamming capability, this instrument use the adjustable active double T bandstop filters of Q values, filter out 50Hz with
The Hz noise of 60Hz, decays to 50dB.As shown in Figure 8.
(5) programmable amplifying circuit
According to the power of signal, this instrument adaptively switches corresponding amplification factor, is divided into 4 amplification factors X1, X10,
X100, X1000.As shown in Figure 3.
(6) peak-detector circuit：
By detecting the value of peak-detector circuit, microcontroller can control programmable amplifying circuit, make signal amplification reasonable
Multiple in.As shown in Figure 4.
Peak-detector circuit includes the first amplifier, the second amplifier, first resistor, second resistance, 3rd resistor, the 4th
Resistance, the 5th resistance, the first diode, the second diode and the first capacitance, the first amplifier negative input are connected in series with
One resistance is followed by voltage input end, the first amplifier anode input end grounding, and the first amplifier out is sequentially connected in series
Connect the negative input of the second amplifier after two diodes, the 4th resistance, the first diode cathode be connected to first resistor with
Between first amplifier negative input, the first diode cathode be connected to the first amplifier out and the second diode it
Between, second resistance one end is connected between first resistor and the first amplifier negative input, and the second resistance other end is connected to
Between second diode and the 4th resistance, 3rd resistor one end is connected between voltage input end and first resistor, 3rd resistor
The other end is connected between the 4th resistance and the second amplifier negative input, the second amplifier anode input end grounding, and second
Amplifier out connects voltage output end, the 5th resistance one end be connected to the 4th resistance and the second amplifier negative input it
Between, the other end is connected between the second amplifier out and voltage output end, and the first capacitance is connect with the 5th resistor coupled in parallel, electricity
Press input terminal connection band logical amplifying circuit, voltage output end connection signal harvester.
(7) main control circuit and signal acquisition, data storage export and GPS module
Governor circuit uses 32 high-performance ARM chip STM32F103, and signal acquisition circuit uses 24 high precision analogues
Conversion chip AD7176-6.GPS module uses the high-performance GPS modules produced by U-BLOX companies.GPRS module uses USR-
GM3.As shown in Figure 5.
The utility model realizes that centralization measures：Complete to measure in the ground electricity data set of multiple spot, concentrated by cable needed for
The geoelectric survey signal to be measured and circuit is switched at high speed to concentrate geoelectric survey；It is at low cost：Centralization measures, 1-n to signal
It concentrates, production and practical application are at low cost；Data volume is big：Multiple spot can be handled in measuring instrument electric data, centrally stored number
It is big according to amount；Intelligence is simple：It can realize that high in the clouds data storage and remote control, intelligence are simple with reference to GPRS technology of Internet of things；Number
According to accurate：The gain of multi gear pattern is carried out to the input of instrument signal in high performance data acquisition circuit this programme or is decayed simultaneously
By band switch free switching, use is quite convenient；Adaptive amplification factor, accurate control signal amplification.
The above, only specific embodiment of the present utility model, but the scope of protection of the utility model is not limited to
In this, in the technical scope that any one skilled in the art discloses in the utility model, can readily occur in various
Equivalent modifications or substitutions, these modifications or substitutions should be covered within the scope of the utility model.Therefore, this practicality
Novel protection domain should be subject to the protection scope in claims.
Claims (7)
1. a kind of high-precision centralization geoelectric survey instrument, the analytic accounting including display device, main controller and signal pickup assembly
Calculation machine and the physical prospecting centralized control equipment being connect with master computer, which is characterized in that single main controller is same by physical prospecting centralized control equipment
When connect at least two electrodes, the physical prospecting centralized control equipment includes sequentially connected multi-channel analog switch circuit, accurate amplification
Circuit, 50Hz filter circuits, programmable amplifying circuit, band logical amplifying circuit and peak-detector circuit, the band logical amplifying circuit
Distinguish connection signal harvester, signal pickup assembly connection main controller, the main controller with peak-detector circuit
Including master controller, data storage circuitry and data derived circuit, the master controller connects data storage circuitry, number respectively
According to derived circuit, display device and programmable amplifying circuit.
A kind of 2. high-precision centralization geoelectric survey instrument according to claim 1, which is characterized in that the multi-channel analog
Switching circuit input terminal connects each electrode channel, the accurate amplification electricity of multi-channel analog switch circuit output terminal connection respectively
Road.
A kind of 3. high-precision centralization geoelectric survey instrument according to claim 2, which is characterized in that the multi-channel analog
Switching circuit uses ADG1608 multiplexers.
A kind of 4. high-precision centralization geoelectric survey instrument according to claim 1, which is characterized in that the programming amplifying
Circuit uses in-phase proportion computing circuit.
A kind of 5. high-precision centralization geoelectric survey instrument according to claim 1, which is characterized in that the master controller
Equipped with GPRS data interface, the master controller is connected with GPS module.
A kind of 6. high-precision centralization geoelectric survey instrument according to claim 1, which is characterized in that the peak detection
Circuit includes the first amplifier, the second amplifier, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the
One diode, the second diode and the first capacitance, the first amplifier negative input are connected in series with first resistor and are followed by
Voltage input end, the first amplifier anode input end grounding, first amplifier out are sequentially connected in series
The negative input of the second amplifier is connected after second diode, the 4th resistance, first diode cathode is connected to
Between one resistance and the first amplifier negative input, first diode cathode be connected to the first amplifier out with
Between second diode, described second resistance one end is connected between first resistor and the first amplifier negative input, institute
The second resistance other end stated is connected between the second diode and the 4th resistance, and described 3rd resistor one end is connected to voltage
Between input terminal and first resistor, the 3rd resistor other end is connected to the 4th resistance and the second amplifier negative input
Between, the second amplifier anode input end grounding, second amplifier out connects voltage output end, described
The 5th resistance one end be connected between the 4th resistance and the second amplifier negative input, the other end is connected to the second amplifier
Between output terminal and voltage output end, first capacitance is connect with the 5th resistor coupled in parallel, voltage input end connection
Band logical amplifying circuit, the voltage output end connection signal harvester.
A kind of 7. high-precision centralization geoelectric survey instrument according to claim 1, which is characterized in that the peak detection
Diode in circuit uses high-frequency diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543343.8U CN207601331U (en) | 2017-11-17 | 2017-11-17 | A kind of high-precision centralization geoelectric survey instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721543343.8U CN207601331U (en) | 2017-11-17 | 2017-11-17 | A kind of high-precision centralization geoelectric survey instrument |
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| CN207601331U true CN207601331U (en) | 2018-07-10 |
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| CN201721543343.8U Expired - Fee Related CN207601331U (en) | 2017-11-17 | 2017-11-17 | A kind of high-precision centralization geoelectric survey instrument |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298444A (en) * | 2018-08-29 | 2019-02-01 | 上海艾都能源科技有限公司 | A kind of earthquake advanced prediction monitoring system |
| CN109752768A (en) * | 2019-01-14 | 2019-05-14 | 上海艾都能源科技有限公司 | The electric earth magnetism high density dot matrix measurement acquisition big data system in solar powered field ground |
-
2017
- 2017-11-17 CN CN201721543343.8U patent/CN207601331U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298444A (en) * | 2018-08-29 | 2019-02-01 | 上海艾都能源科技有限公司 | A kind of earthquake advanced prediction monitoring system |
| CN109752768A (en) * | 2019-01-14 | 2019-05-14 | 上海艾都能源科技有限公司 | The electric earth magnetism high density dot matrix measurement acquisition big data system in solar powered field ground |
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