CN204832539U - Active seismic sensor of high sensitivity three -component - Google Patents
Active seismic sensor of high sensitivity three -component Download PDFInfo
- Publication number
- CN204832539U CN204832539U CN201520602976.6U CN201520602976U CN204832539U CN 204832539 U CN204832539 U CN 204832539U CN 201520602976 U CN201520602976 U CN 201520602976U CN 204832539 U CN204832539 U CN 204832539U
- Authority
- CN
- China
- Prior art keywords
- amplifying circuit
- detector
- detector movement
- high sensitivity
- core cables
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Geophysics And Detection Of Objects (AREA)
Abstract
The utility model discloses an active seismic sensor of high sensitivity three -component, including aluminium alloy housing and nine core cables, be equipped with first detector core, second detector core and third detector core in the aluminium alloy housing from bottom to top in order, third detector core upper portion is equipped with the signal amplification circuit board, first detector core, second detector core and third detector core pass through the signal amplification circuit board and set up electric connection of nine core cables in aluminium alloy housing upper end. The utility model discloses an active seismic sensor of high sensitivity three -component is through adding amplifier circuit, and the sensitivity that has improved the wave detector can detect more weak seismic signal, and for ordinary geophone, single active seismic sensor of high sensitivity can reach by the establish ties sensitivity of the ordinary wave detector constituteed of several cores to have small, sensitivity is high, be suitable for characteristics such as the actual construction demand of little seismic surveillance.
Description
Technical field
The utility model relates to a kind of detection can vibration and carry out the original output electric signal of vibration detector to amplify the device of rear output, is specifically related to the active seismic sensor of a kind of high sensitivity three-component.
Background technology
Seismoreceiver is a kind of sensor based on electromagnetic induction principle, vibration being converted to electric signal, is a kind of passive device.Because seismoreceiver cost is low, easy to use, use in a large number in seismic prospecting.But single earthquake geophone sensitivity is low, composition string during actual seismic exploration uses, is needed to use, to improve sensitivity.
Also need to use vibration transducer to detect faint seismic signal in micro-seismic monitoring, and the vibration signal of microearthquake is more weak than the vibration signal of seismic prospecting, such as in underground, a few km degree of depth produces rock burst in Oil/gas Well waterfrac treatment, the seismic wave propagation produced is to very faint during ground, in this case, common No Source seismic wave detector is still used just to be difficult to the seismic signal detecting that these are faint.So, need in micro-seismic monitoring to use more highly sensitive seismic sensor.
In addition, when carrying out micro-seismic monitoring, if just wave detector is inserted in earth's surface, be easily subject to the impact of the various interference in ground, string is the series connection of branched wave detector, by its buried underground layer, simply cannot can only be inserted in earth's surface during construction.
Summary of the invention
The purpose of this utility model is exactly the defect existed for prior art, provides a kind of high sensitivity three-component active seismic sensor.
Its technical scheme is: the active seismic sensor of high sensitivity three-component, comprise aluminum alloy casing and nine core cables, first detector movement, second detector movement and third detector movement is provided with from bottom to top in turn in described aluminum alloy casing, third detector movement top is provided with signal amplification circuit plate, and described first detector movement, second detector movement and third detector movement are electrically connected with the nine core cables being arranged on aluminum alloy casing upper end by signal amplification circuit plate.
Wherein, described aluminum alloy casing establishes the cylindrical-shaped structure of cavity in being, the bottom of aluminum alloy casing is cone-shaped structure, and its side, top is provided with index aperture.Described first detector movement is vertically arranged on aluminum alloy casing inner bottom part, and described second detector movement and third detector movement lateral cross are arranged on middle part in aluminum alloy casing.Described signal amplification circuit plate comprises the first amplifying circuit, second amplifying circuit and the 3rd amplifying circuit, the input end of described first amplifying circuit is connected with first detector movement, the output terminal of the first amplifying circuit connects first end and second end of nine core cables, the input end of described second amplifying circuit is connected with second detector movement, the output terminal of the second amplifying circuit connects the 3rd end and the 4th end of nine core cables, the input end of described 3rd amplifying circuit is connected with third detector movement, the output terminal of the 3rd amplifying circuit connects five terminal and six end of nine core cables, first amplifying circuit, second amplifying circuit is connected the 7th end of nine core cables with the power positive end of the 3rd amplifying circuit, first amplifying circuit, second amplifying circuit and the power-of the 3rd amplifying circuit are extremely connected the 8th end of nine core cables, first amplifying circuit, second amplifying circuit is connected the 9th end of nine core cables with the ground terminal of the 3rd amplifying circuit.Described first amplifying circuit, the second amplifying circuit are identical with the structure of the 3rd amplifying circuit, and it is enlargement factor is adjustable differential amplifier circuit.
The active seismic sensor of high sensitivity three-component of the present utility model is by adding amplifying circuit, improve the sensitivity of wave detector, fainter seismic signal can be detected, relative to common seismoreceiver, the active seismic sensor of single high sensitivity can reach the sensitivity of the common wave detector be composed in series by several movement, and have volume little, highly sensitive, be suitable for the features such as micro-seismic monitoring practice of construction demand.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of embodiment of the utility model;
Fig. 2 is the circuit block diagram of a kind of embodiment of the utility model;
Fig. 3 is the schematic diagram of amplifying circuit in Fig. 2.
Embodiment
With reference to Fig. 1-Fig. 2, the active seismic sensor of a kind of high sensitivity three-component, comprise aluminum alloy casing 1 and nine core cables 2, first detector movement 3, second detector movement 4 and third detector movement 5 is provided with from bottom to top in turn in described aluminum alloy casing 2, third detector movement 5 top is provided with signal amplification circuit plate 6, and described first detector movement 3, second detector movement 4 and third detector movement 5 are electrically connected with the nine core cables 2 being arranged on aluminum alloy casing 1 upper end by signal amplification circuit plate 6.Described aluminum alloy casing 1 establishes the cylindrical-shaped structure of cavity in being, the bottom of aluminum alloy casing 1 is cone-shaped structure 7, and its side, top is provided with index aperture 8.Described first detector movement 3 is vertically arranged on aluminum alloy casing inner bottom part, and described second detector movement 4 and third detector movement 5 lateral cross are arranged on middle part in aluminum alloy casing 1.Described signal amplification circuit plate 6 comprises the first amplifying circuit 61, second amplifying circuit 62 and the 3rd amplifying circuit 63, the input end of described first amplifying circuit 61 is connected with first detector movement 3, the output terminal of the first amplifying circuit 61 connects first end and second end of nine core cables 2, the input end of described second amplifying circuit 62 is connected with second detector movement 4, the output terminal of the second amplifying circuit 62 connects the 3rd end and the 4th end of nine core cables 2, the input end of described 3rd amplifying circuit 63 is connected with third detector movement 5, the output terminal of the 3rd amplifying circuit 63 connects five terminal and six end of nine core cables 2, first amplifying circuit 61, second amplifying circuit 62 is connected the 7th end of nine core cables 2 with the power positive end of the 3rd amplifying circuit 63, first amplifying circuit 61, second amplifying circuit 62 and the power-of the 3rd amplifying circuit 63 are extremely connected the 8th end of nine core cables 2, first amplifying circuit 61, second amplifying circuit 62 is connected the 9th end of nine core cables 2 with the ground terminal of the 3rd amplifying circuit 63.Described first amplifying circuit 61, second amplifying circuit 62 is identical with the structure of the 3rd amplifying circuit 63, and it is enlargement factor is adjustable differential amplifier circuit, and schematic diagram makes with reference to accompanying drawing 3; Circuit theory: for Z component, it forms primarily of differential amplifier U1, and the external-5V power supply of the 6th pin of indirect a resistance R2, the U1 of the 8th pin of input anode and U1, the 5th pin connects the negative pole of output terminal.Connect between 8th pin with the 5th pin a resistance R1.Signal amplification factor equals the ratio of resistance R1 and R2, and can regulate enlargement factor by the value of regulating resistance R1 and R2, ratio is larger, and enlargement factor is higher.An indirect resistance R3 of the 1st pin of input cathode and U1, the 2nd pin ground connection, the external+5V power supply of the 3rd pin, the 4th pin connects the positive pole of output terminal, at the 1st pin and the resistance R4 that connects between the 4th pin of U1.Signal amplification factor equals the ratio of resistance R4 and R3, and can regulate enlargement factor by the value of regulating resistance R4 and R3, ratio is larger, and enlargement factor is higher.The enlargement factor of illustrated circuit is 10 times.U1 adopts the AD8137 of ADI company.
Three wave detector movements and signal amplification circuit plate are fixed on metal shell inside by the utility model, draw 9 core cables, have conical tail bone bottom metal shell, can be coupled preferably with stratum.The vibration passing on stratum is to housing, and housing vibrates together with the movement be fixed in the above, and movement produces faint voltage signal immediately and is sent to signal amplification circuit plate, will export the voltage signal after differential amplification.
The active seismic sensor signals enlargement factor of high sensitivity three-component of the present utility model is 10 times, and regulate enlargement factor by the size changing resistance, select the wave detector movement of different model can obtain the active seismic sensor of high sensitivity three-component of different qualities.When being applied to micro-seismic monitoring, more how faint seismic signal can be detected, for follow-up data processing and explanation provide more reliable Data support.
In addition, the utility model can also be applied to the fields such as earthquake monitoring, general vibration detection.
Claims (5)
1. the active seismic sensor of high sensitivity three-component, comprise aluminum alloy casing and nine core cables, it is characterized in that: in described aluminum alloy casing, be provided with first detector movement, second detector movement and third detector movement from bottom to top in turn, third detector movement top is provided with signal amplification circuit plate, and described first detector movement, second detector movement and third detector movement are electrically connected with the nine core cables being arranged on aluminum alloy casing upper end by signal amplification circuit plate.
2. the active seismic sensor of high sensitivity three-component according to claim 1, it is characterized in that: described aluminum alloy casing establishes the cylindrical-shaped structure of cavity in being, the bottom of aluminum alloy casing is cone-shaped structure, and its side, top is provided with index aperture.
3. the active seismic sensor of high sensitivity three-component according to claim 1, it is characterized in that: described first detector movement is vertically arranged on aluminum alloy casing inner bottom part, described second detector movement and third detector movement lateral cross are arranged on middle part in aluminum alloy casing.
4. the active seismic sensor of high sensitivity three-component according to claim 1, it is characterized in that: described signal amplification circuit plate comprises the first amplifying circuit, second amplifying circuit and the 3rd amplifying circuit, the input end of described first amplifying circuit is connected with first detector movement, the output terminal of the first amplifying circuit connects first end and second end of nine core cables, the input end of described second amplifying circuit is connected with second detector movement, the output terminal of the second amplifying circuit connects the 3rd end and the 4th end of nine core cables, the input end of described 3rd amplifying circuit is connected with third detector movement, the output terminal of the 3rd amplifying circuit connects five terminal and the 6th end of nine core cables, first amplifying circuit, second amplifying circuit is connected the 7th end of nine core cables with the power positive end of the 3rd amplifying circuit, first amplifying circuit, second amplifying circuit and the power-of the 3rd amplifying circuit are extremely connected the 8th end of nine core cables, first amplifying circuit, second amplifying circuit is connected the 9th end of nine core cables with the ground terminal of the 3rd amplifying circuit.
5. the active seismic sensor of high sensitivity three-component according to claim 4, it is characterized in that: described first amplifying circuit, the second amplifying circuit are identical with the structure of the 3rd amplifying circuit, it is enlargement factor is adjustable differential amplifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602976.6U CN204832539U (en) | 2015-08-12 | 2015-08-12 | Active seismic sensor of high sensitivity three -component |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520602976.6U CN204832539U (en) | 2015-08-12 | 2015-08-12 | Active seismic sensor of high sensitivity three -component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204832539U true CN204832539U (en) | 2015-12-02 |
Family
ID=54690124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520602976.6U Active CN204832539U (en) | 2015-08-12 | 2015-08-12 | Active seismic sensor of high sensitivity three -component |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204832539U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143323A (en) * | 2018-11-01 | 2019-01-04 | 中国矿业大学(北京) | A kind of 3-component earthquake detector shell of convertible tail bone |
| CN110806258A (en) * | 2019-11-12 | 2020-02-18 | 山东省科学院激光研究所 | Three-component fiber grating vibration sensor |
| CN112363206A (en) * | 2020-12-10 | 2021-02-12 | 广东电网有限责任公司 | Broken collection system is prevented to cable |
| CN112946729A (en) * | 2021-01-26 | 2021-06-11 | 哈尔滨工程大学 | Cross winding push-pull type underground three-component optical fiber seismometer |
-
2015
- 2015-08-12 CN CN201520602976.6U patent/CN204832539U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109143323A (en) * | 2018-11-01 | 2019-01-04 | 中国矿业大学(北京) | A kind of 3-component earthquake detector shell of convertible tail bone |
| CN109143323B (en) * | 2018-11-01 | 2023-11-17 | 中国矿业大学(北京) | Three-component geophone shell capable of changing coccyx |
| CN110806258A (en) * | 2019-11-12 | 2020-02-18 | 山东省科学院激光研究所 | Three-component fiber grating vibration sensor |
| CN110806258B (en) * | 2019-11-12 | 2022-06-28 | 山东省科学院激光研究所 | Three-component fiber grating vibration sensor |
| CN112363206A (en) * | 2020-12-10 | 2021-02-12 | 广东电网有限责任公司 | Broken collection system is prevented to cable |
| CN112946729A (en) * | 2021-01-26 | 2021-06-11 | 哈尔滨工程大学 | Cross winding push-pull type underground three-component optical fiber seismometer |
| CN112946729B (en) * | 2021-01-26 | 2022-07-15 | 哈尔滨工程大学 | Cross winding push-pull type underground three-component optical fiber seismometer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204832539U (en) | Active seismic sensor of high sensitivity three -component | |
| CN102062877B (en) | Nuclear magnetic resonance detection device and method for advanced detection of water bodies in front | |
| CN104280781A (en) | Towrope type ocean controllable source electromagnetism and earthquake data collection system | |
| CN103513273B (en) | The land digital seismoreceivers of four components | |
| CN103630853A (en) | Inductive magnetic field sensor | |
| CN102628960B (en) | Velocity and acceleration two-parameter digital geophone | |
| CN203480051U (en) | Mining intrinsic safety type transient electromagnetic instrument receiving antenna | |
| CN103472490A (en) | Mining intrinsic safety type transient electromagnetic instrument receiving antenna | |
| CN103281042B (en) | Remote transmission IEPE type charge amplifier | |
| CN103344995B (en) | Introduce the detection method of the nuclear magnetic resonance directional detection device of artificial magnetic field | |
| CN105044784A (en) | Dual-probe-rod submarine cable detection system and detection method thereof | |
| CN207908433U (en) | Transient electromagnetic defectoscope Noise Suppression Device | |
| CN106199687A (en) | Simple component geophone | |
| CN114217354A (en) | Electromagnetic data acquisition system and method based on optical fiber electromagnetic sensor | |
| CN204228305U (en) | Magnetic Memory-Barkhausen's fusion detection stress system | |
| CN203465426U (en) | Piezoelectric type universal geophone | |
| CN205317861U (en) | Three -component transition electromagnetic surveying receiver | |
| CN106646278A (en) | Low-noise MEMS pre-amplification device utilizing high-resolution magnetic field detection | |
| CN106487341A (en) | A kind of high anti-interference preamplifier | |
| CN215169955U (en) | Underground time domain or frequency domain multi-component electromagnetic measuring instrument based on graphene electromagnetic shielding | |
| CN103643950A (en) | Array induction log tool for high-temperature high-pressure slim hole | |
| CN114047553A (en) | Metal ore body detector and detection signal processing method | |
| CN205157039U (en) | Exempt from to insert and exempt from couplant elastic wave wave detector | |
| CN209446750U (en) | A kind of Rock And Soil magnetic field sensor for landslide monitoring | |
| CN206848490U (en) | A kind of dual sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 257091 No. 7 Building, 228 Software Park, Nanyi Road, Dongying District, Dongying City, Shandong Province Patentee after: Shandong Tianyuan Information Technology Group Co.,Ltd. Address before: 257091 No. 7 Building, 228 Software Park, Nanyi Road, Dongying District, Dongying City, Shandong Province Patentee before: Shandong Tianyuan Information Technology Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP03 | Change of name, title or address |
Address after: 257091 No. 7 Building, 228 Software Park, Nanyi Road, Dongying District, Dongying City, Shandong Province Patentee after: Shandong Tianyuan Information Technology Co.,Ltd. Address before: 257091 building 7, software park, 228 Dongcheng South 1st Road, Dongying City, Shandong Province Patentee before: SHANDONG TIANYUAN INFORMATION TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address |