CN103698583A - Flake film pasting optical current sensor - Google Patents
Flake film pasting optical current sensor Download PDFInfo
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- CN103698583A CN103698583A CN201410007257.XA CN201410007257A CN103698583A CN 103698583 A CN103698583 A CN 103698583A CN 201410007257 A CN201410007257 A CN 201410007257A CN 103698583 A CN103698583 A CN 103698583A
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- thin slice
- current sensor
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- 230000003287 optical effect Effects 0.000 title claims abstract description 41
- 239000011521 glass Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000002313 adhesive film Substances 0.000 claims description 26
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000005304 optical glass Substances 0.000 abstract description 5
- 230000005426 magnetic field effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000035945 sensitivity Effects 0.000 description 5
- 230000010287 polarization Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
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- Measuring Magnetic Variables (AREA)
Abstract
The invention discloses a flake film pasting optical current sensor, belongs to the field of optical measuring and aims to solve the problem that the optical current sensor has low suitability and increased cost as the measuring flexibility is improved by relying on the existing mode of increasing the length of optical glass. The flake film pasting optical current sensor comprises a light source, a first polarizing film, a flake film pasting sensor, a second polarizing film and a photoelectric detector; the flake film pasting sensor comprises a first film, transparent substrate glass and a second film; the first film and the second film are respectively attached to two light passing surfaces of the substrate glass; light beams emitted from the light source are transmitted by the first polarizing film to form rear polarized light which is incident to the flake film pasting sensor, the polarized light incident to the flake film pasting sensor passes though the first film, the transparent substrate glass and the second film in sequence, light passing through the second film is incident to the second polarizing film, and the polarized light passing through the second polarizing film is incident to the photoelectric sensor. The flake film pasting optical current sensor is suitable for measuring the current in a magnetic field effect.
Description
Technical field
The present invention relates to a kind of optical current mutual inductor, belong to optical measurement field.
Background technology
Current optical current sensor, than traditional electromagnetic transformer, has had larger decline on volume and weight.But current optical current sensor, because the diamagnetism optical glass optical activity coefficient using is less, has to rely on the mode that increases optical glass length to put forward high measurement sensitivity.The shortcoming of this structure sensor is that the increase of optical glass length has caused the increase of sensor bulk, there is no the advantage of best performance optical current sensor volume miniaturization, and the applicability of existing optical current sensor is reduced and cost increase.
Summary of the invention
The problem that optical current sensor applicability is low and cost increases that the object of the invention is to put forward in order to solve the mode of existing dependence increase optical glass length high measurement sensitivity, the invention provides a kind of thin slice adhesive film type optical current sensor.
Thin slice adhesive film type optical current sensor of the present invention, it comprises light source, the first polaroid, thin slice adhesive film type sensor, the second polaroid and photodetector; Described thin slice adhesive film type sensor comprises the first film, transparent substrates glass and the second film, and the first film and the second film are attached at respectively on two logical light faces of substrate glasses; The light beam that described light source sends is incident to thin slice adhesive film type sensor through the rear polarizer light of the first polaroid transmission, the polarized light that is incident to thin slice adhesive film type sensor sees through the first film, transparent substrate glasses and the second film successively, the light that sees through the second film is incident to the second polaroid, and the polarized light that sees through the second polaroid is incident to photodetector.
Described the first film and the second film are the optical material film of high faraday's optical activity coefficient.
Described the first film is the stack of multi-disc film, and described the second film is the stack of multi-disc film.
Beneficial effect of the present invention: thin slice adhesive film type sensor of the present invention by a slice conventional clear glass as substrate, the optical material film on attaching on optical direction with high faraday's optical activity coefficient, light beam produces magneto-optic effect when by this film under the effect in electric current generation to be measured magnetic field, and the angle of its plane of polarization deflects.The second polaroid is crossed in light beam transmission after modulation, finally incides the light input end of photodetector.Transparent substrates glass 4 thickness of described thin slice adhesive film type sensor can be processed as required, thereby can guarantee under the prerequisite of optical sensor natural sensitivity of the present invention, reduce the length of substrate glasses, thereby reduced volume, saved cost, and applicability is stronger compared with the existing.In addition, the structure of the first film 7 and the second film 8 is convenient to adjust optical sensitivity by increasing the mode of film quantity, thereby this optical sensor has the feature of flexible structure simultaneously.The length of the substrate glasses of of the present invention and existing thin slice adhesive film type optical current sensing is compared and has been reduced by 50%.
Accompanying drawing explanation
Fig. 1 is the principle schematic of the thin slice adhesive film type optical current sensor described in embodiment one.
Embodiment
Embodiment one: in conjunction with Fig. 1, present embodiment is described, the thin slice adhesive film type optical current sensor described in present embodiment, it comprises light source 1, the first polaroid 2, thin slice adhesive film type sensor, the second polaroid 5 and photodetector 6; Described thin slice adhesive film type sensor comprises the first film 7, transparent substrate glasses 4 and the second film 8, and the first film 7 and the second film 8 are attached at respectively on two logical light faces of substrate glasses 4; The polarized light of the light beam that described light source 1 sends after the first polaroid 2 transmissions is incident to thin slice adhesive film type sensor, the polarized light that is incident to thin slice adhesive film type sensor sees through the first film 7, transparent substrates glass 4 and the second film 8 successively, the light that sees through the second film 8 is incident to the second polaroid 5, and the polarized light that sees through the second polaroid 5 is incident to photodetector 6.
Of the present invention state thin slice adhesive film type sensor by a slice conventional clear glass as substrate, the first film 7 and the second film 8 on attaching on optical direction, light beam produces magneto-optic effect when by this film under the effect in electric current generation to be measured magnetic field, and the angle of its plane of polarization deflects.The second polaroid is crossed in light beam transmission after modulation, finally incides the light input end of photodetector.The principle of work of present embodiment is for utilizing Faraday magnetooptical effect, and this effect refers to that linearly polarized light is when by magneto-optic memory technique, and under the externally-applied magnetic field effect along optical propagation direction, the plane of polarization of polarized light rotates.The rotation angle size of plane of polarization is relevant with externally-applied magnetic field size, and because externally-applied magnetic field size directly depends on electric current to be measured, thereby current value to be measured can record by the rotation angle size of polarized light.Described in present embodiment, magneto-optic effect produces in the film of the logical surperficial magneto-optic memory technique of transparent substrates glass 4.
Embodiment two: present embodiment is the further restriction to the thin slice adhesive film type optical current sensor described in embodiment one, and described the first film 7 and the second film 8 are the optical material film of high faraday's optical activity coefficient.
The material of described the first film 7 and the second film 8 all has very high optical activity coefficient, is made into can be attached to clear glass surface after film.Described transparent substrates glass 4 light transmissions are good, are easy to processing, can be processed into as required thin slice, and the thickness of described thin slice is 0.5mm-5mm.
Embodiment three: present embodiment is the further restriction to the thin slice adhesive film type optical current sensor described in embodiment one, described the first film 7 is the stack of multi-disc film, described the second film 8 is the stack of multi-disc film.
In present embodiment, in present embodiment, on the basis of thickness of determining the first film 7 and the second film 8, by film quantity, can further increase the sensitivity of optical current sensor, thus practical requirement.
Claims (3)
1. thin slice adhesive film type optical current sensor, is characterized in that being,
It comprises light source (1), the first polaroid (2), thin slice adhesive film type sensor, the second polaroid (5) and photodetector (6);
Described thin slice adhesive film type sensor comprises the first film (7), transparent substrate glasses (4) and the second film (8), and the first film (7) and the second film (8) are attached at respectively on two logical light faces of substrate glasses (4);
The polarized light of the light beam that described light source (1) sends after the first polaroid (2) transmission is incident to thin slice adhesive film type sensor, the polarized light that is incident to thin slice adhesive film type sensor sees through the first film (7), transparent substrates glass (4) and the second film (8) successively, the light that sees through the second film (8) is incident to the second polaroid (5), and the polarized light that sees through the second polaroid (5) is incident to photodetector (6).
2. thin slice adhesive film type optical current sensor according to claim 1, is characterized in that, described the first film (7) and the second film (8) are the optical material film of high faraday's optical activity coefficient.
3. thin slice adhesive film type optical current sensor according to claim 1, is characterized in that, described the first film (7) is the stack of multi-disc film, and described the second film (8) is the stack of multi-disc film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007257.XA CN103698583B (en) | 2014-01-08 | 2014-01-08 | Thin slice adhesive film type optical current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410007257.XA CN103698583B (en) | 2014-01-08 | 2014-01-08 | Thin slice adhesive film type optical current sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103698583A true CN103698583A (en) | 2014-04-02 |
| CN103698583B CN103698583B (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410007257.XA Expired - Fee Related CN103698583B (en) | 2014-01-08 | 2014-01-08 | Thin slice adhesive film type optical current sensor |
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| Country | Link |
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| CN (1) | CN103698583B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108084899A (en) * | 2018-01-16 | 2018-05-29 | 苏州征之魂专利技术服务有限公司 | A kind of automobile adhesive film structure |
| CN110045169A (en) * | 2019-04-29 | 2019-07-23 | 上海大学 | A kind of optical current sensor and measuring system of magneto-optic memory technique multi-stage cascade |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672870A (en) * | 2009-08-13 | 2010-03-17 | 苏州纳米技术与纳米仿生研究所 | Magneto-optic current transducer and manufacturing method thereof |
| CN102759369A (en) * | 2011-04-29 | 2012-10-31 | 北京世纪德润科技有限公司 | Primary current signal simulator for optical current transformer |
| CN103163360A (en) * | 2013-03-20 | 2013-06-19 | 哈尔滨工业大学 | Optical current sensor and current measurement method based on comparative measurement structure |
-
2014
- 2014-01-08 CN CN201410007257.XA patent/CN103698583B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101672870A (en) * | 2009-08-13 | 2010-03-17 | 苏州纳米技术与纳米仿生研究所 | Magneto-optic current transducer and manufacturing method thereof |
| CN102759369A (en) * | 2011-04-29 | 2012-10-31 | 北京世纪德润科技有限公司 | Primary current signal simulator for optical current transformer |
| CN103163360A (en) * | 2013-03-20 | 2013-06-19 | 哈尔滨工业大学 | Optical current sensor and current measurement method based on comparative measurement structure |
Non-Patent Citations (2)
| Title |
|---|
| KAZUO KYUMA等: "Fiber Optic Measuring System for Electric Current by Using a Magnetooptic Sensor", 《JOURNAL OF QUANTUM ELECTRONICS》 * |
| 冯则坤等: "光纤电流传感器与掺Bi磁光石榴石薄膜", 《信息记录材料》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108084899A (en) * | 2018-01-16 | 2018-05-29 | 苏州征之魂专利技术服务有限公司 | A kind of automobile adhesive film structure |
| CN110045169A (en) * | 2019-04-29 | 2019-07-23 | 上海大学 | A kind of optical current sensor and measuring system of magneto-optic memory technique multi-stage cascade |
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| Publication number | Publication date |
|---|---|
| CN103698583B (en) | 2016-06-22 |
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