CN202929182U - Magnetic sensor structure - Google Patents
Magnetic sensor structure Download PDFInfo
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- CN202929182U CN202929182U CN 201220650560 CN201220650560U CN202929182U CN 202929182 U CN202929182 U CN 202929182U CN 201220650560 CN201220650560 CN 201220650560 CN 201220650560 U CN201220650560 U CN 201220650560U CN 202929182 U CN202929182 U CN 202929182U
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- fiber
- magnetic sensor
- optical fiber
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Abstract
Disclosed is a magnetic sensor having high sensitivity based on structural design. The magnetic sensor structure has broad application prospects in the micro-magnetic detection field. The magnetic sensor structure of the utility model comprises a substrate, a light source, an incident fiber, a downlink fiber, an uplink fiber, a magnetosensitive unit, an emitting fiber, and an optical detector, wherein the light source is connected with the incident fiber; the downlink fiber is parallelly connected with the uplink fiber; the parallelly connected unit is serially connected with the incident fiber; the parallelly connected unit is connected with the emitting fiber; the emitting fiber is connected with the optical detector; and the magnetosensitive unit is made of magnetic induced shrinkage or elongation material and wraps the downlink fiber. The magnetic sensor structure of the utility model adopts the magnetic induced shrinkage or elongation material to indirectly apply force to the fiber and change the phase of the transmission light inside the fiber via the force, thereby affecting the intensity of the output light and realizing the detection of the high sensitivity. The magnetic sensor structure of the utility model is applicable to the detection of micro-magnetic field.
Description
(1) technical field
The utility model relates to the magnetic sensory field, relates in particular to a kind of magnetic sensor arrangement.
(2) background technology
Magnetic Sensor has a wide range of applications in the measurement of electricity, magnetics amount and mechanical quantity.The Magnetic Sensor bag expands hall effect sensor, anisotropic magnetoresistance sensor, magnetic sensitive transistor, giant magnetoresistance Magnetic Sensor, tunneling magnetic resistance Magnetic Sensor.The characteristics of these magnetic sensings are that when changes of magnetic field, the resistance of material itself changes, and gets final product the variation in perception magnetic field by the variation of detecting material resistance.Except the physical property of material itself occured, in conjunction with different physical influences, the design by structure also can access highly sensitive Magnetic Sensor, is having broad application prospects aspect little magnetic detection.
(3) summary of the invention
The utility model provides a kind of magnetic sensor arrangement, and the indirect stress that the phase place of utilizing the light that transmits in optical fiber is easily produced by magnetic and affect and make detects by the mode of interfering, and has high sensitivity.Technical solution adopted in the utility model is, a kind of magnetic sensor arrangement comprises substrate, light source, incident optical, downlink optical fiber, uplink optical fibers, magnetosensitive unit, outgoing optical fiber, photo-detector, and wherein, light source is connected with incident optical; Downlink optical fiber and uplink optical fibers are in parallel, and in parallel unit and incident optical be in series, and the unit of parallel connection is connected with outgoing optical fiber, and outgoing optical fiber is connected with photo-detector; The magnetosensitive unit is magnetostriction materials, is coated on downlink optical fiber; Light source, incident optical, downlink optical fiber, uplink optical fibers, magnetosensitive unit, outgoing optical fiber and photo-detector are positioned on substrate.
The utility model adopts magnetostriction materials to come indirectly to change the phase place of transmission light in optical fiber by power for optical fiber applies power, and then affects and export light intensity, realizes highly sensitive detection, is suitable for the detection in little magnetic field.
(4) description of drawings
Fig. 1 is structural representation of the present utility model.
In figure: 1 substrate, 2 light sources, 3 incident opticals, 4 downlink optical fiber, 5 uplink optical fibers, 6 magnetosensitive unit, 7 outgoing optical fiber, 8 photo-detectors.
(5) embodiment
Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.
Fig. 1 is structural representation of the present utility model, wherein, substrate 1, light source 2, incident optical 3, downlink optical fiber 4, uplink optical fibers 5, magnetosensitive unit 6, outgoing optical fiber 7, photo-detector 8, wherein, light source 2 is connected with incident optical 3; Downlink optical fiber 4 is in parallel with uplink optical fibers 5, and unit and incident optical 3 in parallel be in series, and the unit of parallel connection is connected with outgoing optical fiber 7, and outgoing optical fiber 7 is connected with photo-detector 8; Magnetosensitive unit 6 is magnetostriction materials, is coated on downlink optical fiber 4; Light source 2, incident optical 3, downlink optical fiber 4, uplink optical fibers 5, magnetosensitive unit 6, outgoing optical fiber 7 and photo-detector 8 are positioned on substrate 1.The utility model adopts magnetostriction materials to come indirectly to change the phase place of transmission light in optical fiber by power for optical fiber applies power, and then affects and export light intensity, realizes highly sensitive detection, is suitable for the detection in little magnetic field.
Claims (2)
1. magnetic sensor arrangement comprises substrate, light source, incident optical, downlink optical fiber, uplink optical fibers, magnetosensitive unit, outgoing optical fiber, photo-detector, it is characterized in that:
Described light source is connected with incident optical, and downlink optical fiber and uplink optical fibers are in parallel, and in parallel unit and incident optical be in series, and the unit of parallel connection is connected with outgoing optical fiber, and outgoing optical fiber is connected with photo-detector;
Described magnetosensitive unit is magnetostriction materials, is coated on downlink optical fiber.
2. a kind of magnetic sensor arrangement according to claim 1 is characterized in that: described light source, incident optical, downlink optical fiber, uplink optical fibers, magnetosensitive unit, outgoing optical fiber and photo-detector are positioned on substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650560 CN202929182U (en) | 2012-11-20 | 2012-11-20 | Magnetic sensor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220650560 CN202929182U (en) | 2012-11-20 | 2012-11-20 | Magnetic sensor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202929182U true CN202929182U (en) | 2013-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220650560 Expired - Fee Related CN202929182U (en) | 2012-11-20 | 2012-11-20 | Magnetic sensor structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN202929182U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483445A (en) * | 2009-08-21 | 2012-05-30 | 罗伯特·博世有限公司 | Magnetic field sensor and method for producing a magnetic field sensor |
| CN107703369A (en) * | 2017-09-29 | 2018-02-16 | 北京计算机技术及应用研究所 | One kind is based on magnetostrictive fiber optic weak magnetic field detecting system |
| CN108957365A (en) * | 2018-05-18 | 2018-12-07 | 京东方科技集团股份有限公司 | A kind of magnetic field sensor |
| CN112068045A (en) * | 2020-09-02 | 2020-12-11 | 中国计量大学 | Nonlinear interference type magnetic field sensor |
-
2012
- 2012-11-20 CN CN 201220650560 patent/CN202929182U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102483445A (en) * | 2009-08-21 | 2012-05-30 | 罗伯特·博世有限公司 | Magnetic field sensor and method for producing a magnetic field sensor |
| CN102483445B (en) * | 2009-08-21 | 2014-08-13 | 罗伯特·博世有限公司 | Magnetic field sensor and method for producing a magnetic field sensor |
| CN107703369A (en) * | 2017-09-29 | 2018-02-16 | 北京计算机技术及应用研究所 | One kind is based on magnetostrictive fiber optic weak magnetic field detecting system |
| CN108957365A (en) * | 2018-05-18 | 2018-12-07 | 京东方科技集团股份有限公司 | A kind of magnetic field sensor |
| CN112068045A (en) * | 2020-09-02 | 2020-12-11 | 中国计量大学 | Nonlinear interference type magnetic field sensor |
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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: 20130508 Termination date: 20131120 |