CN102419891B - Earthquake forecasting instrument and using method thereof - Google Patents
Earthquake forecasting instrument and using method thereof Download PDFInfo
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- CN102419891B CN102419891B CN 201110123504 CN201110123504A CN102419891B CN 102419891 B CN102419891 B CN 102419891B CN 201110123504 CN201110123504 CN 201110123504 CN 201110123504 A CN201110123504 A CN 201110123504A CN 102419891 B CN102419891 B CN 102419891B
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Abstract
The invention provides an earthquake forecasting instrument which comprises a base, a coil, an alternating current amplifier, a current-limiting gate and an alarm device, wherein the coil is vertically arranged above the base; the coil, the alternating current amplifier, the current-limiting gate and the alarm device are sequentially connected; an amplification factor of the alternating current amplifier can be adjusted; the alternating current amplifier is provided with discontinuous gears; and the current-limiting gate is structurally characterized in that the current-limiting gate is conducted when an input voltage is larger than a rated voltage and is cutoff when the input voltage is less than the rated voltage. The earthquake forecasting instrument can monitor earth magnetism abnormal fluctuation in the early stage of earthquakes, has simple structure and low cost, is free from environmental influence and is convenient for a person to carry and use.
Description
Affiliated technical field
The present invention relates to electronic technology field, especially, be a kind of for monitoring GEOMAGNETIC CHANGE, and there is the earth-quake predictor of earthquake prediction function, with and using method.
Background technology
In recent years, earth movement is comparatively active, and seismism happens occasionally, and its disaster caused is inestimable, and as Wenchuan earthquake, Yushu earthquake, the disaster of its initiation allows the whole world feel deep sorrow deeply.And, for the prediction of seismism, the effective method that proposes is not but arranged all the time.
At present some seismological observation centers adopt macroscopical animal phenomenon to observe earthquake, as the animal disturbance, extremely migrate etc., because this kind of phenomenon has larger uncertainty, even if therefore occur extremely, also are difficult to determine whether that earthquake will face.
Comparatively advanced, also comparatively generally adopt earth magnetism to monitor to carry out earthquake prevention, usually, adopt magnetograph to carry out direct record to earth magnetism, perhaps adopt the ionospheric electromagnetic signal of the earth is monitored, for technical measures commonly used, in fact, adopting this kind of means is can monitor geomagnetic anomaly fully, as, before 9 grades of macroseisms of 2004.12.26 Indonesia ten days, in the South Pole, the clear earth magnetism curve of cyclical fluctuations figure observed with station as shown in Figure 3, can see, geomagnetic field intensity has occurred that several amplitudes approximately reach the unusual fluctuations of 1000nT, now, should be enough to allow the people arouse vigilance.Yet the forecast of earthquake is not only technical problem, because current earth magnetism monitoring equipment cost is larger, complicated operation, therefore only for specialized agency owns, can not be generalized to the individual, and during due to geomagnetic anomaly, relate to zone larger, official can not arbitrarily report earthquake pre-warning, otherwise will make the vast city state that paralyses, therefore, for the exploitation of portable earthquake prediction instrument that can be flexible for the individual, it be the key addressed this problem, on the other hand, although current magnetograph can record the earth magnetism curve of cyclical fluctuations exactly, but by the work that unusual fluctuations the are converted into alarm signal developing of also still needing, as, the earth magnetism fluctuation signal processing mode generally adopted at present is, adopt wave filter by high-frequency fluctuation, that is normal fluctuation filtering, then low-frequency fluctuation is amplified to processing, in this case, we as can be seen from Figure 3, what obtain is a kind of fluctuation that slope is very little that changes, in six hours, it is approximately only 600nT that geomagnetic anomaly changes (strengthen or weaken), be that the magnetic induction density rate of change is 2.78 * 10
-11t/s, for little rate of change like this, can be subject to the impact of surrounding enviroment often, as high-voltage fence, train etc., therefore, adopt filtering mode to be only suitable in long-time statistics, and be not suitable for the Real-Time Monitoring to earth magnetism, for the ordinary individual, do not have energy to carry out this statistical process.In fact, we can analyze from Fig. 3, why unusual fluctuations appear in the earth magnetism curve, it is large that amplitude during mainly due to its normal fluctuation becomes, that is the GEOMAGNETIC CHANGE quantitative change in the unit interval is large, from Fig. 3, initial analysis is known, when GEOMAGNETIC CHANGE amount during unusual fluctuations in the unit interval can reach normal fluctuation several times or tens times, in fact, this is only conservative estimation, small magnetic needle oscillation phenomenon from general violent earthquake occurs is inferred, the magnetic variation rate is evident as some orders of magnitude of normal variation rate singularly, therefore, in order to realize the Real-Time Monitoring to earth magnetism, we only start with from the real-time amplitude of earth magnetism, anomalous amplitude in unit interval and normal amplitude separation are come.
Summary of the invention
For above-mentioned problem, the object of the present invention is to provide a kind of earth-quake predictor, this earth-quake predictor can monitor the earthquake geomagnetic anomaly fluctuation in early stage, and sending alarm signal, it is simple in structure, with low cost, and not affected by environment, be convenient to the individual and portably use.
The technical solution adopted for the present invention to solve the technical problems is: this earth-quake predictor comprises pedestal, coil, AC amplifier, current limliting lock, alarm device; Described coil is vertically installed in described pedestal top; Described coil, AC amplifier, current limliting lock, alarm device are linked in sequence; The enlargement factor of described AC amplifier is all adjustable, and has discontinuous gear; Described current limliting lock has input voltage conducting while being greater than rated voltage, the architectural characteristic of ending while being less than rated voltage.
Further, described coil is an annular ring be coiled into by enameled wire, is installed on the coil former of described pedestal top.
Further, described alarm device is a highlighted LED who supports alternating current, and it can consist of the light emitting diode of two reverse parallel connections; Described alarm device can also be a hummer, the size of its buzzer and input current relation in direct ratio.
Further, also be provided with a compass on described pedestal, to determine the Optimal orientation of described coil.
Further, the enlargement factor between each gear of described AC amplifier differs 2-10 doubly.
Further, described current limliting lock consists of avalanche diode.
Above-mentioned earth-quake predictor in use, it can be placed in to steady place, and make described coil plane and magnetic direction (North and South direction) quadrature as far as possible, coil is directly extracted the terrestrial magnetic field magnetic line of force, and according to electromagnetic induction principle, in the earth magnetism vibration processes, produce AC electromotive force in described coil, by regulating described AC amplifier, can make described AC electromotive force be amplified to and be enough to support alarm device work, due to AC amplifier, remake for described alarm device after by described current limliting lock, therefore, AC amplifier is being adjusted in normally magnetic vibration situation, after just connecting described alarm device, clawback is one grade again, the alternating current that makes it to produce is not enough to the described current limliting lock of conducting, while having the amplitude produced in terrestrial magnetic field with magnetic vibration varying number level normally only, the current limliting lock just can be opened again, thereby generation avalanche effect, alarm device is given the alarm, the moment amplitude that this earth-quake predictor is terrestrial magnetic field due to the parameter of monitoring, therefore its parameter value is higher, can not be subject to the impact of surrounding enviroment, the monitoring accuracy is good, in addition, it is simple in structure, with low cost, being convenient to the individual portably uses, thereby can take preventive measures flexibly according to individual s own situation.
The present invention also provides a kind of using method of this earth-quake predictor, and the method has following operation steps:
Four, described coil plane and magnetic direction are kept to quadrature;
Five, regulate from small to large the enlargement factor of described AC amplifier, until alarm signal just appears in described alarm device;
Six, the enlargement factor of described AC amplifier is reduced to one grade, described alarm signal is disappeared.
Further, when carrying out step 1, can adopt the basis for estimation of compass as magnetic direction.
The accompanying drawing explanation
Fig. 1 is the schematic appearance of an embodiment of this earthquake prediction instrument.
Fig. 2 is the electrical structure diagram of this earthquake prediction instrument.
Fig. 3 is 9 grades of macroseisms of 2004.12.26 Indonesia early stages, clear and station records, the earth magnetism curve of cyclical fluctuations figure of 2004.12.17-2004.12.27 time period in the South Pole.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described:
In Fig. 1-embodiment illustrated in fig. 2, this earth-quake predictor comprises pedestal 3, coil 1, AC amplifier 202, current limliting lock 203, alarm device 2; Described coil 1 is an annular ring be coiled into by enameled wire, is vertically installed in described pedestal 3 tops, particularly, can be installed on a coil former consisted of non-conductive material of described pedestal 3 tops, in Fig. 1, omits.
Described coil 1, AC amplifier 202, current limliting lock 203, alarm device 2 are linked in sequence; The enlargement factor of described AC amplifier 202 is all adjustable, and has discontinuous gear, that is, in described AC amplifier 202 shift processes, AC amplifier 202 is in off-state; Described current limliting lock 203 has input voltage conducting while being greater than rated voltage, the architectural characteristic of ending while being less than rated voltage, as, can adopt avalanche diode to form, when input voltage when threshold values is following, cut-off output, when threshold values is above, resistance die-offs, and output increases severely, thereby the electromotive force that normally magnetic vibration that can the unit interval amplitude is less produces cut-off, and the electromotive force that magnetic vibration is singularly produced output.
Described alarm device 2 is a highlighted LED who supports alternating current, and it can consist of the light emitting diode of two reverse parallel connections; Described alarm device can also be a hummer, the size of its buzzer and input current relation in direct ratio.
Also be provided with a compass 4 on described pedestal 3, to determine the Optimal orientation of described coil 1, in operation, only need make described coil 1 plane and described compass 4 point to quadrature and get final product.
Enlargement factor between each gear of described AC amplifier 202 differs 2-10 doubly.
Above-mentioned earth-quake predictor in use, it is placed in to steady place, and make described coil 1 plane and magnetic direction quadrature as far as possible, coil 1 is directly extracted the terrestrial magnetic field magnetic line of force, and according to electromagnetic induction principle, in the earth magnetism vibration processes, produce AC electromotive force in described coil 1, by regulating described AC amplifier 202, can make described AC electromotive force be amplified to is enough to support alarm device 2 work, due to AC amplifier 202, remake for described alarm device 2 after by described current limliting lock 203, therefore, AC amplifier 202 is being adjusted in normally magnetic vibration situation, after just connecting described alarm device 2, clawback is one grade again, the alternating current that makes it to produce is not enough to the described current limliting lock 203 of conducting, while having the amplitude produced in terrestrial magnetic field with magnetic vibration varying number level (more than 10 times) normally only, current limliting lock 203 just can be opened again, thereby generation avalanche effect, alarm device 2 is given the alarm, the moment amplitude that this earth-quake predictor is terrestrial magnetic field due to the parameter of monitoring, therefore its parameter value is higher, can not be subject to the impact of surrounding enviroment, the monitoring accuracy is good, in addition, it is simple in structure, with low cost, being convenient to the individual portably uses, thereby can take preventive measures flexibly according to individual s own situation.
Claims (9)
1. an earth-quake predictor, comprise pedestal, coil, AC amplifier, current limliting lock, alarm device; Described coil is vertically installed in described pedestal top; Described coil, AC amplifier, current limliting lock, alarm device are linked in sequence; The enlargement factor of described AC amplifier is all adjustable, and has discontinuous gear; Described current limliting lock has input voltage conducting while being greater than rated voltage, the architectural characteristic of ending while being less than rated voltage.
2. earth-quake predictor according to claim 1, it is characterized in that: described coil is an annular ring be coiled into by enameled wire, is installed on the coil former of described pedestal top.
3. earth-quake predictor according to claim 1 is characterized in that: described alarm device is a highlighted LED who supports alternating current, the light emitting diode of two reverse parallel connections, consists of.
4. earth-quake predictor according to claim 1, it is characterized in that: described alarm device is a hummer, the size of its buzzer and input current relation in direct ratio.
5. earth-quake predictor according to claim 1, is characterized in that: also be provided with a compass on described pedestal.
6. earth-quake predictor according to claim 1 is characterized in that: the enlargement factor between each gear of described AC amplifier differs 2-10 doubly.
7. earth-quake predictor according to claim 1, it is characterized in that: described current limliting lock consists of avalanche diode.
8. the using method of earth-quake predictor described in a claim 1, it is characterized in that: the method has following operation steps:
One, described coil plane and magnetic direction are kept to quadrature;
Two, regulate from small to large the enlargement factor of described AC amplifier, until alarm signal just appears in described alarm device;
Three, the enlargement factor of described AC amplifier is reduced to one grade, described alarm signal is disappeared.
9. using method according to claim 8, is characterized in that: when carrying out step 1, adopt the basis for estimation of compass as magnetic direction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110123504 CN102419891B (en) | 2011-05-13 | 2011-05-13 | Earthquake forecasting instrument and using method thereof |
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| CN 201110123504 CN102419891B (en) | 2011-05-13 | 2011-05-13 | Earthquake forecasting instrument and using method thereof |
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| CN102419891A CN102419891A (en) | 2012-04-18 |
| CN102419891B true CN102419891B (en) | 2013-06-26 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103064107A (en) * | 2012-12-24 | 2013-04-24 | 袁志强 | Vibration testing system based on Hall sensor |
| CN103064105B (en) * | 2012-12-27 | 2015-06-17 | 辽宁工程技术大学 | Earthquake monitor in mine area |
| CN113009552B (en) * | 2021-02-26 | 2022-06-14 | 西安石油大学 | Earthquake prediction device |
Citations (4)
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|---|---|---|---|---|
| EP0067924A2 (en) * | 1981-06-19 | 1982-12-29 | Panagiotis Varotsos | Method for predicting earthquakes |
| EP0326638A1 (en) * | 1988-02-05 | 1989-08-09 | Elizabeth A. Rauscher | Non-superconducting apparatus for detecting magnetic and electromagnetic fields |
| CN1055427A (en) * | 1990-04-06 | 1991-10-16 | 魏洪亭 | Seismic early-warning lamp |
| CN1057113A (en) * | 1990-06-02 | 1991-12-18 | 地质矿产部航空物探遥感中心 | The method and apparatus of fully automatic geomagnetic field component measuring |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS595985A (en) * | 1982-07-03 | 1984-01-12 | Masao Ohashi | Earthquake predicting machine |
| JPH09178864A (en) * | 1995-12-25 | 1997-07-11 | Casio Comput Co Ltd | Geomagnetism detecting device |
| JPH09329667A (en) * | 1996-06-07 | 1997-12-22 | Kiyoji Suzuki | Earthquake predicting device |
| JP3786887B2 (en) * | 2002-03-04 | 2006-06-14 | アイチ・マイクロ・インテリジェント株式会社 | Magnetic detector |
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2011
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0067924A2 (en) * | 1981-06-19 | 1982-12-29 | Panagiotis Varotsos | Method for predicting earthquakes |
| EP0326638A1 (en) * | 1988-02-05 | 1989-08-09 | Elizabeth A. Rauscher | Non-superconducting apparatus for detecting magnetic and electromagnetic fields |
| CN1055427A (en) * | 1990-04-06 | 1991-10-16 | 魏洪亭 | Seismic early-warning lamp |
| CN1057113A (en) * | 1990-06-02 | 1991-12-18 | 地质矿产部航空物探遥感中心 | The method and apparatus of fully automatic geomagnetic field component measuring |
Non-Patent Citations (5)
| Title |
|---|
| JP昭59-5985A 1984.01.12 |
| JP特开平9-178864A 1997.07.11 |
| JP特开平9-329667A 1997.12.22 |
| 全国地磁测量与地震预测研究;詹志佳,赵从利,张洪利,高金田,沈文志;《地震地磁观测与研究》;19991231;第20卷(第6期);22-28 * |
| 詹志佳,赵从利,张洪利,高金田,沈文志.全国地磁测量与地震预测研究.《地震地磁观测与研究》.1999,第20卷(第6期),22-28. |
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| CN102419891A (en) | 2012-04-18 |
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