CN204331047U - A kind of reluctance type seismoreceiver - Google Patents
A kind of reluctance type seismoreceiver Download PDFInfo
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- CN204331047U CN204331047U CN201520003256.8U CN201520003256U CN204331047U CN 204331047 U CN204331047 U CN 204331047U CN 201520003256 U CN201520003256 U CN 201520003256U CN 204331047 U CN204331047 U CN 204331047U
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- magnet
- spring
- magnetoresistive element
- housing
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Abstract
A kind of reluctance type seismoreceiver, comprise magnetoresistive element, magnet, housing, spring, spring is in housing, the two ends of spring are fixed on the both sides inwall of housing, magnet is arranged on spring, magnet is in the middle part of spring, the below of magnet is magnetoresistive element, the lower end of magnetoresistive element is fixed on the bottom surface of housing, the geometric center of magnetoresistive element is in the linear distribution district in the magnetic field that magnet produces, after receiving shock wave, under the action of the spring, interaction force between magnet and magnetoresistive element produces inertial oscillation, relative displacement is produced between magnetoresistive element and magnet, magnetic field is changed, thus magnetic resistance is changed, magnetic resistance change rate and the linear pass of vibration displacement, by the signal that magnetic resistance change rate exports, just can complete the collection to seismic signal, the utility model effectively can gather the seismic signal of deep layer, improve the accuracy of seismic prospecting, and precision geologic prospecting requirement can be met, there is significant economic benefit.
Description
Technical field
The utility model belongs to the specialized equipment of oilfield quake exploration and engineering exploration, is a kind of reluctance type seismoreceiver.
Background technology
Seismoreceiver is a kind of sensor special for geologic prospecting, and its function changes ground vibration into electric signal.Existing seismoreceiver is based on moving-coil, and due to structural design existing defects, low frequency and high frequency response is poor, dynamic range is little, makes seismic exploration equipment be difficult to collect effective deep layer signal, affect the accuracy of oil seismic exploration.Precision geologic prospecting requirement cannot be met.
Summary of the invention
The purpose of this utility model is a kind of reluctance type seismoreceiver of design, overcomes the deficiency that prior art exists, can collect effective deep layer signal, improves the accuracy of oil seismic exploration, meets the geologic prospecting requirement of MODEL OVER COMPLEX TOPOGRAPHY and more deep layer.
The purpose of this utility model is achieved in that a kind of reluctance type seismoreceiver, comprise magnetoresistive element, magnet, housing, spring, spring is in housing, the two ends of spring are fixed on the both sides inwall of housing, magnet is arranged on spring, magnet is in the middle part of spring, and the below of magnet is magnetoresistive element, and the lower end of magnetoresistive element is fixed on the bottom surface of housing.
The geometric center of magnetoresistive element is in the linear distribution region in the magnetic field that magnet produces.
The beneficial effects of the utility model are: after receiving shock wave, under the action of the spring, interaction force between magnet and magnetoresistive element produces inertial oscillation, relative displacement is produced between magnetoresistive element and magnet, magnetic field is changed, thus magnetic resistance is changed, magnetic resistance change rate and vibration displacement linear, by the signal that magnetic resistance change rate exports, just can complete seismic detection.The utility model low frequency and high frequency response is good, dynamic range is large, effective deep layer signal can be collected, the accuracy of oil seismic exploration can be improved, overcome prior art Problems existing, the requirement of " six high " geologic prospecting of high resolution, high s/n ratio, high fidelity, high definition, pinpoint accuracy, high confidence level can be met, there is significant economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
Below in conjunction with Fig. 1, embodiment of the present utility model is described.
As seen from the figure, embodiment of the present utility model comprises magnetoresistive element 1, magnet 2, housing 3, spring 4, spring 4 is in housing 3, the two ends of spring 4 are fixed on the both sides inwall of housing 3, magnet 2 is arranged on spring 4, magnet 2 is in the middle part of spring 4, and the below of magnet 2 is magnetoresistive elements 1, and the lower end of magnetoresistive element 1 is fixed on the bottom surface of housing 3.The geometric center of magnetoresistive element 1 is in the linear distribution region in the magnetic field that magnet 2 produces.
Magnetoresistive element 1, be made up of electrodeposition ferronickel film on silicon chip, ferronickel film is prepared into Hui Sitong full-bridge by photoetching, the single armed resistance of bridge 1100 ohm, response is 3 millivolts/volt/oersted, and linear interval ± 3 oersteds of response, peak response direction, magnetic field is along the pin length direction of magnetoresistive element 1.Magnet 2, material is neodymium iron boron, shape disk, diameter 8 millimeters, thickness 2.5 millimeters, magnetizing direction through-thickness, and thickness direction is consistent with reluctance type seismoreceiver vibration survey direction.The geometric center distance 48 millimeters of the lower surface of magnet 2 and magnetoresistive element 1, now the geometric center position of magnetoresistive element 1 is 0.17 oersted/millimeter along the magnetic field intensity gradient in reluctance type seismoreceiver vibration survey direction, magnetic field intensity 1.5 oersted.
Housing 3, material aluminium alloy, external diameter 22 millimeters, internal diameter 20 millimeters, adopt epoxy resin magnetoresistive element 1 to be fixed on the bottom of housing 3, housing 3 side-wall hole, for magnetoresistive element 1 power supply and signal lead.Spring 4 material is beryllium copper, circular iris with holes, thickness 0.2 millimeter, external diameter 20 millimeters, internal diameter 2 millimeters, and adopt screw to be fixed on by magnet 2 in the hole of diaphragm spring 4, the outward flange of diaphragm spring 4 is fixed on housing.
Claims (2)
1. a reluctance type seismoreceiver, it is characterized in that: comprise magnetoresistive element (1), magnet (2), housing (3), spring (4), spring (4) is in housing (3), the two ends of spring (4) are fixed on the both sides inwall of housing (3), magnet (2) is arranged on spring (4), magnet (2) is in the middle part of spring (4), and the below of magnet (2) is magnetoresistive element (1), and the lower end of magnetoresistive element (1) is fixed on the bottom surface of housing (3).
2. a kind of reluctance type seismoreceiver according to claim 1, is characterized in that: the geometric center of magnetoresistive element (1) is in the linear distribution region in the magnetic field that magnet (2) produces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003256.8U CN204331047U (en) | 2015-01-05 | 2015-01-05 | A kind of reluctance type seismoreceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520003256.8U CN204331047U (en) | 2015-01-05 | 2015-01-05 | A kind of reluctance type seismoreceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204331047U true CN204331047U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520003256.8U Expired - Fee Related CN204331047U (en) | 2015-01-05 | 2015-01-05 | A kind of reluctance type seismoreceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204331047U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502955A (en) * | 2015-01-05 | 2015-04-08 | 惠卫民 | Magneto-resistive seismic wave detector |
| CN106199687A (en) * | 2016-06-27 | 2016-12-07 | 吉林大学 | Simple component geophone |
-
2015
- 2015-01-05 CN CN201520003256.8U patent/CN204331047U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502955A (en) * | 2015-01-05 | 2015-04-08 | 惠卫民 | Magneto-resistive seismic wave detector |
| CN106199687A (en) * | 2016-06-27 | 2016-12-07 | 吉林大学 | Simple component geophone |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20170105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |