CN105092972A - Hydropower monitoring instrument - Google Patents
Hydropower monitoring instrument Download PDFInfo
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- CN105092972A CN105092972A CN201410186715.0A CN201410186715A CN105092972A CN 105092972 A CN105092972 A CN 105092972A CN 201410186715 A CN201410186715 A CN 201410186715A CN 105092972 A CN105092972 A CN 105092972A
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Abstract
The invention discloses a hydropower monitoring instrument, which can monitor an abnormal earth micro current premonition. The hydropower monitoring instrument comprises a probe, a signal amplifying circuit, a filter circuit, a photoelectric isolation circuit, and a data acquisition device connected in sequence, wherein the probe is formed by a lower cone-shaped stainless steel sensing electrode and an upper cylinder-shaped wiring end, the upper cylinder-shaped wiring end introduces four electrodes respectively from top to bottom, electrodes 6 and 7 are used for monitoring resistance, electrodes 8 and 9 are used for monitoring current, and electrodes 6 and 9 are used for monitoring a potential difference. Three ways of signals sensed by the probe are transmitted to the signal amplifying circuit for processing such as amplifying via a cable, the signals are then inputted to the filter circuit, the output end is connected with the photoelectric isolation circuit, and the signals are isolated and then inputted to the data acquisition device for storage and transmission. According to the hydropower monitoring instrument, three ways of signals such as water resistance, water current and water potential difference can be detected at the same time, abnormal earthquake premonition for earth micro signals can be effectively presented, and comparative observation and data analysis are facilitated. The hydropower monitoring instrument has the advantages of simple structure, convenient mounting, saved space, high sensitivity and strong anti-interference ability.
Description
Technical field
The present invention relates to a kind of instrument of monitoring micro-current precursory anomaly.
Background technology
Earthquake is the extremely strong Sudden Natural Disasters of a kind of destructiveness, has sudden strong, crushing large, the feature such as secondary disaster is serious, social influence is large.Data shows, there is certain micro-electric current due to the radioactive ionizing event of radiomaterial in earth interior, before earthquake stress field effect under rock mass extruding occur piezoelectric effect, produce micro-current anomaly, to the exception monitoring of electric current micro-in underground water, it is the comparatively effective earthquake precursor observation mode of one.Only adopt single mode to monitor the change of micro-electric current in underground water for micro-current monitoring at present, lack the comparative observation with other physical quantitys, the analysis for the micro-current signal monitored has difficulties.
Summary of the invention
In order to overcome the above problems, research and develop new type water pyroelectric monitor instrument.The technical solution adopted for the present invention to solve the technical problems is: a kind of instrument of monitoring micro-current precursory anomaly, is characterized in that: comprise the probe, signal amplification circuit, filtering circuit, photoelectric isolating circuit, the data collecting instrument that connect successively; Probe is connected with signal amplification circuit by cable, and signal amplification circuit exports termination filtering circuit, and filtering circuit exports termination photoelectric isolating circuit, and signal inputs data collecting instrument after isolation to carry out storing and transmitting.
A kind of instrument of monitoring micro-current precursory anomaly, it is characterized in that: described probe comprises downside cone-shaped stainless steel induction pole and upside cylindricality terminals composition, upside cylindricality terminals draw four electrodes from top to bottom respectively, wherein electrode 6, electrode 7 are for monitoring resistor, electrode 8, electrode 9 are for monitoring current, and electrode 6, electrode 9 are for monitoring potential difference (PD).Outside the cylindricality terminals of upside, wiring position resin material seals.
Monitor an instrument for micro-current precursory anomaly, it is characterized in that: described signal amplification circuit comprises resistance, electric current and potential difference (PD) three part amplifying circuit.Measuring resistance circuit Constant current input is to the non-inverting input of first order operational amplifier, the reverse input end of the output termination second level operational amplifier of first order operational amplifier, the non-inverting input of first order operational amplifier and the output terminal of second level operational amplifier are connected to electric capacity, connect with electrode 6, electrode 7 simultaneously; Survey the non-inverting input that current circuit electrode 7 connects first order operational amplifier, the reverse input end of the output termination second level operational amplifier of first order operational amplifier, the non-inverting input of first order operational amplifier and the output terminal of second level operational amplifier are connected to resistance R2, resistance R3, resistance R4, the other end ground connection of resistance R4, is parallel with electric capacity simultaneously; Survey the pin 1 of operational amplifier in potential difference (PD) circuit, pin 2 receiving electrode 6 and electrode 9 respectively, be connected to an electric capacity between pin 1,2, between its pin 3,4, be connected to a resistance.
The invention has the beneficial effects as follows:
1, structure of the present invention simple, easy for installation, save space, highly sensitive, antijamming capability is strong.
2, observe while present invention achieves water resistance, water power stream and water potential, effectively can embody the microsignal Earthquake Precursor Anomalies of the earth, be convenient to comparative observation and data analysis.
accompanying drawing explanation :
Fig. 1 is theory diagram of the present invention.
Fig. 2 is sonde configuration schematic diagram of the present invention.
Fig. 3 is circuit theory diagrams of the present invention.
1. probes in figure; 2. signal amplification circuit; 3. filtering circuit; 4. photoelectric isolating circuit; 5. data collecting instrument; 6. electrode 6; 7. electrode 7; 8. electrode 8; 9. electrode 9; 10. induction pole;
：
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
Theory diagram as shown in Figure 1, a kind of instrument of monitoring micro-current precursory anomaly of the present invention, comprises the probe 1, signal amplification circuit 2, filtering circuit 3, photoelectric isolating circuit 4, the data collecting instrument 5 that connect successively; The three road signals collected are sent into signal amplification circuit 2 by cable by probe 1, the signal of correspondence is carried out the process such as amplification by signal amplification circuit 2 respectively, after signal amplifies, noise signal filters out by input filter circuit 3, filtering circuit 3 exports termination photoelectric isolating circuit 4, and signal inputs data collecting instrument 5 after isolation to carry out storing and transmitting.
Sonde configuration schematic diagram as shown in Figure 2, described probe comprises downside cone-shaped stainless steel induction pole 10 and upside cylindricality terminals composition, upside cylindricality terminals draw four electrodes from top to bottom respectively, wherein electrode 6, electrode 7 are for monitoring resistor, electrode 8, electrode 9 are for monitoring current, and electrode 6, electrode 9 are for monitoring potential difference (PD).Four electrodes draw six road signals inside electrode, access signal amplification circuit.Outside the cylindricality terminals of upside, wiring position resin material seals.
Circuit theory diagrams of the present invention as shown in Figure 3, described signal amplification circuit comprises resistance, electric current and potential difference (PD) three part amplifying circuit.Figure (a) is resistance measurement amplifying circuit, constant current source Is is input to the non-inverting input of first order operational amplifier IC1, the reverse input end of the output termination second level operational amplifier IC2 of first order operational amplifier IC1, the non-inverting input of first order operational amplifier IC1 and the output terminal of second level operational amplifier IC2 are connected to electric capacity C1, connect with electrode 6, electrode 7 simultaneously.Figure (b) is current measurement amplifying circuit, electrode 7 connects the non-inverting input of first order operational amplifier IC3, the reverse input end of the output termination second level operational amplifier IC4 of first order operational amplifier IC3, the non-inverting input of first order operational amplifier IC3 and the output terminal of second level operational amplifier IC4 are connected to resistance R2, resistance R3, resistance R4, the other end ground connection of resistance R4, is parallel with electric capacity C2 simultaneously.Figure (c) is potential difference measurement amplifying circuit, and the pin 1 of operational amplifier IC5, pin 2 receiving electrode 6 and electrode 9 respectively, be connected to an electric capacity C3, be connected to a resistance R5 between its pin 3,4 between pin 1,2.
Claims (3)
1. monitor an instrument for micro-current precursory anomaly, it is characterized in that: comprise the probe 1, signal amplification circuit 2, filtering circuit 3, photoelectric isolating circuit 4, the data collecting instrument 5 that connect successively; The signal collected is sent into signal amplification circuit 2 by cable by probe 1, the signal of correspondence is carried out the process such as amplification by signal amplification circuit 2 respectively, after signal amplifies, noise signal filters out by input filter circuit 3, filtering circuit 3 exports termination photoelectric isolating circuit 4, and signal inputs data collecting instrument 5 after isolation to carry out storing and transmitting.
2. according to the instrument of the monitoring micro-current Earthquake Precursor Anomalies described in claim 1, it is characterized in that: described probe comprises downside cone-shaped stainless steel induction pole 10 and upside cylindricality terminals composition, upside cylindricality terminals draw four electrodes from top to bottom respectively, wherein electrode 6, electrode 7 are for monitoring resistor, electrode 8, electrode 9 are for monitoring current, electrode 6, electrode 9 are for monitoring potential difference (PD), and outside the cylindricality terminals of upside, wiring position resin material seals.
3. according to the instrument of the monitoring micro-current Earthquake Precursor Anomalies described in claim 1, it is characterized in that: described signal amplification circuit comprises resistance, electric current and potential difference (PD) three part amplifying circuit; Measuring resistance circuit constant current source Is is input to the non-inverting input of first order operational amplifier IC1, the reverse input end of the output termination second level operational amplifier IC2 of first order operational amplifier IC1, the non-inverting input of first order operational amplifier IC1 and the output terminal of second level operational amplifier IC2 are connected to electric capacity C1, connect with electrode 6, electrode 7 simultaneously; Survey the non-inverting input that current circuit electrode 7 meets first order operational amplifier IC3, the reverse input end of the output termination second level operational amplifier IC4 of first order operational amplifier IC3, the non-inverting input of first order operational amplifier IC3 and the output terminal of second level operational amplifier IC4 are connected to resistance R2, resistance R3, resistance R4, the other end ground connection of resistance R4, is parallel with electric capacity C2 simultaneously; Survey the pin 1 of operational amplifier IC5 in potential difference (PD) circuit, pin 2 receiving electrode 6 and electrode 9 respectively, be connected to an electric capacity C3 between pin 1,2, between its pin 3,4, be connected to a resistance R5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186715.0A CN105092972A (en) | 2014-05-06 | 2014-05-06 | Hydropower monitoring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410186715.0A CN105092972A (en) | 2014-05-06 | 2014-05-06 | Hydropower monitoring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105092972A true CN105092972A (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410186715.0A Pending CN105092972A (en) | 2014-05-06 | 2014-05-06 | Hydropower monitoring instrument |
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Application publication date: 20151125 |
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