CN201548698U - Geophone based on quartz flexible accelerometer - Google Patents
Geophone based on quartz flexible accelerometer Download PDFInfo
- Publication number
- CN201548698U CN201548698U CN2009202205566U CN200920220556U CN201548698U CN 201548698 U CN201548698 U CN 201548698U CN 2009202205566 U CN2009202205566 U CN 2009202205566U CN 200920220556 U CN200920220556 U CN 200920220556U CN 201548698 U CN201548698 U CN 201548698U
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- quartz flexible
- flexible accelerometer
- wave detector
- cylindrical shell
- power supply
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Abstract
A geophone based on a quartz flexible accelerometer is characterized in that the geophone comprises a structure body, a quartz flexible accelerometer installed inside the structure body and a power supply, wherein the quartz flexible accelerometer is used for detecting seismic wave, and the power supply is used for supplying power to the quartz flexible accelerometer. The geophone adopts the quartz flexible accelerometer as the core component, and has the characteristics of high precision and sensitivity, simple structure, small volume, light weight and convenience for use and replacement.
Description
Technical field
The utility model relates to a kind of wave detector, relates in particular to a kind of wave detector that seismic event detects that is used for.
Background technology
Now the wave detector of Shi Yonging is based on passive moving-coil geophone, its principle of work is: upper and lower two coil windings are on the aluminum coil former, form a coasting body, in the magnetic field that permanent magnet produces, permanent magnet and wave detector shell are fixed together by spring-strip suspension.When the wave detector shell shakes with ground, cause that coil moves with respect to permanent magnet, two coils produce induction electromotive force, and the size of induction electromotive force changes with the vibration of wave detector shell, and Oscillation Amplitude is big more, and induction electromotive force is big more, on the contrary induction electromotive force is more little.
There is following shortcoming in the passive moving-coil geophone of this kind: (1) moving-coil type electromechanical structure, and volume is big, and quality is big; (2) narrow bandwidth, general 10Hz ~ 200Hz; (3) conventional detector is explored in the use on the spot, by certain being spaced (with the form of connection in series-parallel combination promptly with the array configuration of 10～30 traditional detector), be embedded in underground, under exciting source (blowing out or hydraulic giant) effect, seismic wave sensitively, data transmission is used to central processing unit, caused carrying trouble like this, problem such as labour intensity is big.
The utility model content
Technical problem to be solved in the utility model is to overcome the deficiency of above-mentioned prior art, provide a kind of to realize the wave detector based on the quartz flexible accelerometer of broadband, high sensitivity height, self-powered, convenient test, explore in the use on the spot, save the labor capacity of exploration operation greatly.
A kind of wave detector that provides according to the utility model based on the quartz flexible accelerometer, comprise structure, be installed in the quartz flexible accelerometer and the power supply of described structure, wherein said quartz flexible accelerometer is used to detect seismic event, and described power supply is powered to described quartz flexible accelerometer.
A kind of wave detector based on the quartz flexible accelerometer that provides according to the utility model also has following attached technical characterictic:
Described quartz flexible accelerometer comprises gauge outfit and the servo circuit that is connected with described gauge outfit.
Described structure comprises cylindrical shell, is installed in battery compartment in the described cylindrical shell and the tailstock that is installed together with described cylindrical shell.
The front portion of described cylindrical shell is formed with the tapering, and described gauge outfit is installed in the front portion of described cylindrical shell, and near described tapering.
The inwall in described tapering is provided with rubber blanket or metal gasket, also is provided with crash pad between described gauge outfit and described rubber blanket or the metal gasket.
Be provided with bracing frame in the described cylindrical shell, be connected by rubber blanket between described gauge outfit and the support frame as described above.
Be provided with the circuit board that is used to install described servo circuit in the described tailstock.
Be provided with O-ring seal between described tailstock and the described cylindrical shell.
Described power supply is a charge power supply, also is provided with the electric power management circuit of the described charge power supply of management.
Compared with prior art has following advantage according to a kind of wave detector provided by the invention: at first based on the quartz flexible accelerometer, select for use quartz flexible accelerometer as core component of the present utility model, have precision and highly sensitive characteristics, simultaneously it is simple in structure, volume is little, in light weight, easy to use and change.Secondly, the utility model can be subjected to extraneous very big impact in loading and unloading, carrying, application process, may cause the damage of utility model like this, and in order to guarantee normal use of the present utility model, the utility model has designed the protecting against shock structure.Once more, the utility model is the electric power management circuit of power supply of quartz flexible accelerometer servo circuit and demonstration electric quantity of rechargeable battery in the self-powered structure of wave detector indoor design.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic diagram of quartz flexible accelerometer of the present utility model.
Embodiment
Referring to Fig. 1 and Fig. 2, the embodiment of a kind of wave detector based on the quartz flexible accelerometer that provides in utility model, comprise structure 1, be installed in the quartz flexible accelerometer 2 and the power supply 3 of described structure 1, wherein said quartz flexible accelerometer 2 is used to detect seismic event, and described power supply 3 is to described quartz flexible accelerometer 2 power supplies.The utility model as core component, utilizes the quartz flexible accelerometer to have precision and highly sensitive characteristics quartz flexible accelerometer, make of the present utility model simple in structure, volume is little, in light weight, easy to use and change.The utility model is used to detect the vibration signal of seismic event with quartz flexible accelerometer, and converts the vibration signal of seismic event to analog electrical signal, and is sent to external detection system.
Referring to Fig. 1 and Fig. 2, in the foregoing description that the utility model provides, described quartz flexible accelerometer 2 comprises gauge outfit 21 and the servo circuit 22 that is connected with described gauge outfit 21.Described gauge outfit 21 is to be used to detect seismic signal, and described servo circuit 22 is that gauge outfit 21 detected seismic signals are handled, and converts the simulating signal that is beneficial to transmission to, certainly, also can convert digital signal to.
Referring to Fig. 1 and Fig. 2, in the foregoing description that the utility model provides, described structure 1 comprises cylindrical shell 11, is installed in battery compartment 12 in the described cylindrical shell 11 and the tailstock 13 that is installed together with described cylindrical shell 11.Described structure 1 is formed the structure of a sealing by cylindrical shell 11 and tailstock 13, and it has cavity, is used to install gauge outfit 21 and servo circuit 22 and power supply 3 in the cavity.
Referring to Fig. 1 and Fig. 2, in the foregoing description that the utility model provides, the front portion of described cylindrical shell 11 is formed with tapering 14, and described gauge outfit 21 is installed in the front portion of described cylindrical shell 11, and near described tapering 14.The utility model is arranged on 14 places, tapering of described cylindrical shell 11 front ends with gauge outfit 21, is beneficial to the induction of 21 pairs of seismic signals of gauge outfit, improves the degree of accuracy that detects.
Referring to Fig. 1 and Fig. 2, in the foregoing description that the utility model provides, the inwall in described tapering 14 is provided with rubber blanket 15, also is provided with crash pad 16 between described gauge outfit 21 and the described rubber blanket 15.Be provided with bracing frame 17 in the described cylindrical shell 11, be connected by rubber blanket 18 between described gauge outfit 21 and the support frame as described above 17.The utility model is formed a cavity by bracing frame 17 and tapering 14 in cylindrical shell 11, be used for installing gauge outfit 21.The utility model can be subjected to extraneous very big impact in loading and unloading, carrying, application process, in order to address this problem, rubber blanket 15 and crash pad 16 are set between the inwall in described gauge outfit 21 and tapering 14, and between gauge outfit 21 and bracing frame 17, rubber blanket 18 is set, constituted the protecting against shock structure, be used to reduce horizontal shear force, prevent to cause damage of the present utility model.Certainly, in the present embodiment, rubber blanket also can be substituted by metal gasket.
Referring to Fig. 1 and Fig. 2, in the foregoing description that the utility model provides, be provided with the circuit board 23 that is used to install described servo circuit 22 in the described tailstock 13.The utility model is considered the engineering site application feature, has designed the low-power consumption servo circuit 22 of quartz flexible accelerometer, and separates with gauge outfit 21.Like this, not only be beneficial to gauge outfit 21 and detect seismic event, and be beneficial to the transmission of servo circuit 22 for seismic signal.
Referring to Fig. 1 and Fig. 2, in the foregoing description that the utility model provides, be provided with O-ring seal 19 between described tailstock 13 and the described cylindrical shell 11.The sealing that described O-ring seal 19 can improve described tailstock 13 and cylindrical shell 11 is set, prevents that dust and foreign material from entering cylindrical shell 11 inside, causes damage to internal part.
Referring to Fig. 1 and Fig. 2, in the foregoing description that the utility model provides, described power supply 3 is a charge power supply, also is provided with the electric power management circuit 31 of the described charge power supply 3 of management.Described electric power management circuit 31 can be managed the charging work to charge power supply, simultaneously, can also indicate the state of charge power supply.This charge power supply adopts rechargeable battery, and this rechargeable battery is installed in the battery compartment 12 in the cylindrical shell 11.Described electric power management circuit 31 is set in place on the circuit board 23 in tailstock 13.
Referring to Fig. 2, the gauge outfit 21 of the quartz flexible accelerometer 2 that the utility model adopts is made up of differential capacitance sensor 24, torquer 25, detection quality pendulum assembly 26.This kind structure can adopt the gauge head structure of the quartz flexible accelerometer 2 of comparative maturity.When the wave detector shell shakes with ground, pendulum assembly in the quartz flexible accelerometer gauge outfit (the pendulum assembly supports by flexible level bridge) departs from the equilibrium position because of inertia, the differential capacitor detecting device detects the displacement of pendulum assembly, and export the current signal that displacement therewith is directly proportional, through the servo circuit processing and amplifying, for providing electric current, the torquer coil produces feedback moment, with the moment of inertia of equilibrium activity in the pendulum assembly, make the pendulum assembly be in new equilibrium state, the voltage output signal and the acceleration of servo circuit are proportional.
Claims (9)
1. wave detector based on the quartz flexible accelerometer, it is characterized in that: comprise structure, be installed in the quartz flexible accelerometer and the power supply of described structure, wherein said quartz flexible accelerometer is used to detect seismic event, and described power supply is powered to described quartz flexible accelerometer.
2. a kind of wave detector based on the quartz flexible accelerometer as claimed in claim 1 is characterized in that: described quartz flexible accelerometer comprises gauge outfit and the servo circuit that is connected with described gauge outfit.
3. a kind of wave detector based on the quartz flexible accelerometer as claimed in claim 2 is characterized in that: described structure comprises cylindrical shell, is installed in battery compartment in the described cylindrical shell and the tailstock that is installed together with described cylindrical shell.
4. a kind of wave detector as claimed in claim 3 based on the quartz flexible accelerometer, it is characterized in that: the front portion of described cylindrical shell is formed with the tapering, and described gauge outfit is installed in the front portion of described cylindrical shell, and near described tapering.
5. a kind of wave detector based on the quartz flexible accelerometer as claimed in claim 4, it is characterized in that: the inwall in described tapering is provided with rubber blanket or metal gasket, also is provided with crash pad between described gauge outfit and described rubber blanket or the metal gasket.
6. a kind of wave detector based on the quartz flexible accelerometer as claimed in claim 4 is characterized in that: be provided with bracing frame in the described cylindrical shell, be connected by rubber blanket between described gauge outfit and the support frame as described above.
7. a kind of wave detector based on the quartz flexible accelerometer as claimed in claim 3 is characterized in that: be provided with the circuit board that is used to install described servo circuit in the described tailstock.
8. a kind of wave detector based on the quartz flexible accelerometer as claimed in claim 3 is characterized in that: be provided with O-ring seal between described tailstock and the described cylindrical shell.
9. a kind of wave detector based on the quartz flexible accelerometer as claimed in claim 1 is characterized in that: described power supply is a charge power supply, also is provided with the electric power management circuit of the described charge power supply of management.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202205566U CN201548698U (en) | 2009-10-30 | 2009-10-30 | Geophone based on quartz flexible accelerometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202205566U CN201548698U (en) | 2009-10-30 | 2009-10-30 | Geophone based on quartz flexible accelerometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201548698U true CN201548698U (en) | 2010-08-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202205566U Expired - Fee Related CN201548698U (en) | 2009-10-30 | 2009-10-30 | Geophone based on quartz flexible accelerometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201548698U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984330A (en) * | 2010-09-26 | 2011-03-09 | 中国计量科学研究院 | Low-frequency or ultralow-frequency vibration measurement suite |
| CN106291669A (en) * | 2016-07-26 | 2017-01-04 | 中国科学院武汉岩土力学研究所 | A kind of intellectual blast wave acquisition probe |
| CN109471160A (en) * | 2018-11-29 | 2019-03-15 | 江苏集萃微纳自动化系统与装备技术研究所有限公司 | The moving-coil detector of velocity and acceleration is detected simultaneously |
-
2009
- 2009-10-30 CN CN2009202205566U patent/CN201548698U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101984330A (en) * | 2010-09-26 | 2011-03-09 | 中国计量科学研究院 | Low-frequency or ultralow-frequency vibration measurement suite |
| CN101984330B (en) * | 2010-09-26 | 2013-01-16 | 中国计量科学研究院 | Low-frequency or ultralow-frequency vibration measurement suite |
| CN106291669A (en) * | 2016-07-26 | 2017-01-04 | 中国科学院武汉岩土力学研究所 | A kind of intellectual blast wave acquisition probe |
| CN109471160A (en) * | 2018-11-29 | 2019-03-15 | 江苏集萃微纳自动化系统与装备技术研究所有限公司 | The moving-coil detector of velocity and acceleration is detected simultaneously |
| CN109471160B (en) * | 2018-11-29 | 2020-07-24 | 江苏集萃微纳自动化系统与装备技术研究所有限公司 | Moving coil detector for simultaneously detecting speed and acceleration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20121030 |