CN105548730A - Kerr sensor through adoption of extinction processing technology and measurement system thereof - Google Patents
Kerr sensor through adoption of extinction processing technology and measurement system thereof Download PDFInfo
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- CN105548730A CN105548730A CN201610054768.6A CN201610054768A CN105548730A CN 105548730 A CN105548730 A CN 105548730A CN 201610054768 A CN201610054768 A CN 201610054768A CN 105548730 A CN105548730 A CN 105548730A
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- sensor
- delustring
- cell light
- penetrating object
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/12—Measuring electrostatic fields or voltage-potential
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Abstract
The embodiment of the invention discloses a Kerr sensor through adoption of the extinction processing technology and a measurement system thereof. The sensor provided by the invention comprises: Kerr cell light transmission bodies connected in series, and extinction devices are arranged around the periphery of the Kerr cell light transmission bodies; each extinction device includes two polaroids which are overlapped together, the polarization direction of the polaroids are mutually perpendicular, and the angles of the polaroids and the central axis of the Kerr cell light transmission body are 45 degrees; one first fiber collimator, one polarizer and one first wave plate are arranged in order at the signal input end of each Kerr cell light transmission body connected in series in the signal input direction, and one second wave plate, one analyzer and one second fiber collimator are arranged in order at the signal output end of each Kerr cell light transmission body connected in series in the signal output direction; and the polarization direction of the polarizer is orthogonal to the polarization direction of the analyzer. Extinction devices arranged around Kerr cell light transmission bodies connected in series effectively reduce the influence of illumination on the sensor, and the safety of each Kerr cell light transmission body is increased through connection in series of a plurality of Kerr cell light transmission bodies.
Description
Technical field
The present invention relates to Ke Er sensor technical field, particularly relate to a kind of the Ke Er sensor and the measuring system that adopt delustring treatment technology.
Background technology
In air, the Measurement accuracy of space electric field has a wide range of applications in scientific research and engineering practice, in the electrical apparatus, the space electric field that accurate sensor can help in our better measuring equipment can be measured, judge accurately and effectively the insulation status of equipment and circuit whether abnormal.
In prior art, electric field measurement technology based on Kerr effect also progressively develops and grows up, Kerr effect refers to the material put in the electric field, orientation (deflection) is there is because its molecule is subject to electric power effect, present anisotropy, result produces birefringent phenomenon, namely different along the refracting power of two different directions materials to light, and originally having the crystal of birefringence, its birefringence can change.For the measuring system of application Kerr effect, be that measurement sample is immersed in Ke Er liquid mostly, the Kerr effect of liquid can be utilized like this to measure electric field, nowadays Ke Er liquid is integrated in Ke Er cell light penetrating object and manufactures sensor.Wherein, Ke Er liquid refers to the liquid that can cause Kerr effect.
But, Ke Er liquid is integrated into the sensor that formed in Ke Er cell light penetrating object due to the Ke Er liquid encapsulated in cell less, when being easily subject to measuring, the interference of external environment, affects measuring accuracy.
Summary of the invention
Provide a kind of Ke Er sensor adopting delustring treatment technology in the embodiment of the present invention, cannot external interference be got rid of to solve Ke Er sensor of the prior art, affect the problem of measuring accuracy.
In order to solve the problems of the technologies described above, the embodiment of the invention discloses following technical scheme:
The invention discloses a kind of Ke Er sensor adopting delustring treatment technology, comprising:
The Ke Er cell light penetrating object be connected in series, described Ke Er cell light penetrating object periphery is surrounded with eliminating device, described eliminating device comprises the polaroid that two panels is superimposed, and the polarization direction of described polaroid is orthogonal and angle respectively and between described Ke Er cell light penetrating object axis is 45 degree;
The signal input part of the described Ke Er cell light penetrating object be connected in series, be disposed with the first optical fiber collimator, the polarizer and the first wave plate along signal input direction, described in be connected in series Ke Er cell light penetrating object signal output part, along output side signal to being disposed with the second wave plate, analyzer and the second optical fiber collimator; Wherein, the described polarizer is orthogonal with the polarization direction of analyzer.
Preferably, described eliminating device comprises delustring plate, and described delustring panel edges connects and successively around being arranged at described Ke Er cell light penetrating object periphery.
Preferably, the distance between described delustring plate and described Ke Er cell light penetrating object is 0.1-5mm.
Preferably, described eliminating device comprises four blocks of delustring plates, described four pieces of delustring panel edges successively vertically connect and around being arranged at described Ke Er cell light penetrating object periphery.
Preferably, the quantity of the Ke Er cell light penetrating object be connected in series described in is two.
Preferably, described Ke Er cell light penetrating object is set to cylindrical structure, and the cross-sectional diameter of described cylindrical structure is 10mm, length is 40mm, and the hollow cavity of described cylindrical structure fills Ke Er liquid.
Preferably, the length of described delustring plate is 85mm.
Preferably, described polaroid is set to polyvinyl alcohol film.
Preferably, the extinction ratio of the described polarizer and analyzer is 10000:1.
The invention discloses a kind of Ke Er sensor measuring system adopting delustring treatment technology, comprising: the arbitrary described Ke Er sensor of polarization maintaining optical fibre, multimembrane optical fiber, lasing light emitter, information acquisition unit and claim 1-9;
Described Ke Er sensor signal input end is connected with described lasing light emitter by described polarization maintaining optical fibre, and described Ke Er sensor signal output terminal is connected with described information acquisition unit by described multimembrane optical fiber.
Beneficial effect of the present invention comprises: Ke Er sensor disclosed by the invention, by using, the mode that Ke Er cell light penetrating object is connected in series is extended light path, because the limited length of single Ke Er cell light penetrating object, and the manufacture difficulty extending light path by single Ke Er cell light penetrating object is larger.Meanwhile, the Ke Er cell light penetrating object be connected in series adds the security of each Ke Er cell light penetrating object, can change in time, therefore, add the adaptability of Ke Er sensor after badly some.In addition, Ke Er sensor provided by the invention is surrounded with eliminating device in the periphery of Ke Er cell light penetrating object, and eliminating device can carry out delustring process to illumination under photoenvironment, and eliminating device can reduce the interference of ambient lighting greatly, and lengthen working hours, thus improve measuring accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, for those of ordinary skills, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
A kind of Ke Er sensor construction schematic diagram adopting delustring treatment technology that Fig. 1 provides for the embodiment of the present invention;
A kind of Ke Er sensor cross-section structural representation adopting delustring treatment technology that Fig. 2 provides for the embodiment of the present invention;
A kind of Ke Er sensor measuring system structural representation based on adopting delustring treatment technology that Fig. 3 provides for the embodiment of the present invention;
In Fig. 1-Fig. 3, symbol represents:
1-Ke Er cell light penetrating object, 2-eliminating device, 3-first optical fiber collimator, the 4-polarizer, 5-first wave plate, 6-second wave plate, 7-analyzer, 8-second optical fiber collimator, 9-polarization maintaining optical fibre, 10-multimembrane optical fiber, 11-lasing light emitter, 12-information acquisition unit.
Embodiment
The embodiment of the present invention provides a kind of the Ke Er sensor and the measuring system that adopt delustring treatment technology, technical scheme in the present invention is understood better in order to make those skilled in the art person, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, should belong to the scope of protection of the invention.
In order to make those skilled in the art person understand the present invention program better, below in conjunction with drawings and embodiments, the present invention is described in further detail.
First the Ke Er sensor of the employing delustring treatment technology of the embodiment of the present invention is described, see Fig. 1, for a kind of Ke Er sensor construction schematic diagram adopting delustring treatment technology that the embodiment of the present invention provides, comprise: the Ke Er cell light penetrating object 1 be connected in series, Ke Er cell light penetrating object 1 periphery is surrounded with eliminating device 2, eliminating device 2 comprises the polaroid that two panels is superimposed, and the polarization direction of polaroid is orthogonal and angle respectively and between Ke Er cell light penetrating object 1 axis is 45 degree.
Wherein Ke Er cell light penetrating object 1 is set to cylindrical structure, and the cross-sectional diameter of cylindrical structure is 10mm, length is 40mm, and the hollow cavity of described cylindrical structure fills Ke Er liquid.The cell membrane of Ke Er cell light penetrating object 1 is that optical glass is fired by special process and bubble-free sealing.The Ke Er sensor that the embodiment of the present invention provides reduces the manufacture difficulty of single Ke Er cell while adopting the form of the Ke Er cell light penetrating object 1 of series connection to extend light path, the precision measured by the dimension adjustable changing Ke Er cell.Be filled with Ke Er liquid in Ke Er cell light penetrating object 1, Ke Er liquid selects deionization pure water, and the Kerr coefficient of this Ke Er liquid is high, and little to the damage of cell membrane.
Eliminating device 2 is around being arranged at Ke Er cell light penetrating object 1 periphery, so eliminating device 2 can be set to mate with Ke Er cell light penetrating object 1 outside surface cylindrical, also can be set to polylith delustring panel edges and to connect successively and around the form being arranged on Ke Er cell light penetrating object 1 periphery.Above-mentioned two kinds of forms should as the restriction of scope, and those skilled in the art can select other forms of eliminating device 2 according to actual conditions, as long as can play photoextinction, it all should fall into protection scope of the present invention.
As Fig. 2, it is a kind of Ke Er sensor cross-section structural representation adopting delustring treatment technology that the embodiment of the present invention provides;
The eliminating device 2 that the present embodiment provides is set to four blocks of delustring plates, four pieces of delustring panel edges connect and successively around the periphery being arranged at Ke Er cell light penetrating object 1, now can be vertical relation between adjacent delustring plate, also can be that angle between adjacent delustring plate is greater than 90 degree, those skilled in the art can select according to actual needs.Be vertical relation between adjacent delustring plate shown in Fig. 2, every block delustring plate is all equal with ultimate range with the minor increment between Ke Er cell light penetrating object 1.
In addition, distance between delustring plate and Ke Er cell light penetrating object 1 is set to 0.1-5mm, when delustring plate is cylindrical, distance between delustring plate with Ke Er cell light penetrating object 1 is identical, when delustring plate is the form of four pieces of connections, minor increment between delustring plate and Ke Er cell light penetrating object 1 is 0.1mm, and ultimate range is 5mm.In four blocks of delustring plates that the present embodiment provides, the cross-sectional area of every block delustring plate is 3 × 12mm
2, length is 85mm, and the length of Ke Er cell light penetrating object 1 is determined according to the number of Ke Er cell in Ke Er sensor in the realistic case.In the Ke Er sensor that the present embodiment provides, the number of Ke Er cell light penetrating object 1 is 2.
Eliminating device 2 is made up of the polaroid be superimposed, the polarization direction of polaroid is mutually orthogonal, and the angle of the polarization direction of two polaroids respectively and between Ke Er cell light penetrating object axis is 45 degree, light intensity to external world in environment can cause maximum decay, reduce ambient light according to and the temperature variation that produces because of illumination on the impact of Ke Er transducer sensitivity.
Two polaroid mucilage bindings are combined into delustring plate together, and polaroid uses macromolecular compound polyvinyl alcohol film to be made for substrate, does not contain metallic particles.
At the signal input part of the Ke Er cell light penetrating object 1 be connected in series, signal input direction is provided with the first optical fiber collimator 3, the polarizer 4 and the first wave plate 5, the signal output part of the Ke Er cell light penetrating object 1 be connected in series, along output side signal to being disposed with the second wave plate 6, analyzer 7 and the second optical fiber collimator 8, the polarizer 4 is orthogonal with the polarization direction of analyzer 7.
Wherein, the extinction ratio of the polarizer 4 and analyzer 7 is 10000:1, polarization direction is orthogonal, the polarizer 4 is for we providing the polarized light required for measurement, analyzer 7 is used for checking planar line polarized light, the object of the first wave plate 5 and the second wave plate 6 be for increasing two polarized components between phase differential, play the effect of measuring accuracy.Transmission light in optical fiber can be transformed into collimated light (directional light) by light collimator, or parallel for the external world (less parallel) is optically coupled in single-mode fiber.
See Fig. 3, be a kind of Ke Er sensor measuring system structural representation based on adopting delustring treatment technology that the embodiment of the present invention provides, measuring system comprises: polarization maintaining optical fibre 9, multimembrane optical fiber 10, lasing light emitter 11, information acquisition unit 12 and Ke Er sensor.
Wherein Ke Er sensor signal input end is connected with lasing light emitter 11 by polarization maintaining optical fibre 9, and Ke Er sensor signal output terminal is connected with signal gathering unit 12 by multimembrane optical fiber 10, and Ke Er sensor adopts organic glass encapsulation.
As seen from the above-described embodiment, Ke Er sensor disclosed by the invention, comprise the Ke Er cell light penetrating object 1 be connected in series, the Ke Er cell light penetrating object 1 be connected in series adds the cell security of each Ke Er cell light penetrating object 1, can change in time after badly some, in addition, the light path controllability of the Ke Er cell light penetrating object 1 be arranged in series is strong, can regulate measuring accuracy by Ke Er cell light penetrating object 1 number increasing or reduce series connection.In addition, be surrounded with eliminating device 2 in Ke Er cell light penetrating object 1 periphery, eliminating device 2 reduces the impact of external environment illumination on Ke Er sensor, and eliminates the impact of ambient lighting on Ke Er cell light penetrating object 1, has higher accuracy.For general Ke Er cell light penetrating object 1, because cell is less, easily because temperature variation appears in environmental light intensity, after delustring process is carried out to ambient lighting, greatly can reduce the interference of ambient lighting, lengthen working hours.
It should be noted that, in this article, the such as relational terms of " first " and " second " etc. and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
The above is only the specific embodiment of the present invention, those skilled in the art is understood or realizes the present invention.To be apparent to one skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. adopt a Ke Er sensor for delustring treatment technology, it is characterized in that, comprising:
The Ke Er cell light penetrating object (1) be connected in series, described Ke Er cell light penetrating object (1) periphery is surrounded with eliminating device (2), described eliminating device (2) comprises the polaroid that two panels is superimposed, and the polarization direction of described polaroid is orthogonal and angle respectively and between described Ke Er cell light penetrating object (1) axis is 45 degree;
The signal input part of the described Ke Er cell light penetrating object (1) be connected in series, be disposed with the first optical fiber collimator (3), the polarizer (4) and the first wave plate (5) along signal input direction, described in be connected in series Ke Er cell light penetrating object (1) signal output part, along output side signal to being disposed with the second wave plate (6), analyzer (7) and the second optical fiber collimator (8); Wherein, the described polarizer (4) is orthogonal with the polarization direction of analyzer (7).
2. the Ke Er sensor of employing delustring treatment technology according to claim 1, it is characterized in that, described eliminating device (2) comprises delustring plate, and described delustring panel edges connects and successively around being arranged at described Ke Er cell light penetrating object (1) periphery.
3. the Ke Er sensor of employing delustring treatment technology according to claim 2, is characterized in that, the distance between described delustring plate and described Ke Er cell light penetrating object (1) is 0.1-5mm.
4. the Ke Er sensor of employing delustring treatment technology according to claim 2, it is characterized in that, described eliminating device (2) comprises four blocks of delustring plates, described four pieces of delustring panel edges successively vertically connect and around being arranged at described Ke Er cell light penetrating object (1) periphery.
5. the Ke Er sensor of employing delustring treatment technology according to claim 1, is characterized in that, described in the quantity of Ke Er cell light penetrating object (1) that is connected in series be two.
6. the Ke Er sensor of employing delustring treatment technology according to claim 1, it is characterized in that, described Ke Er cell light penetrating object (1) is set to cylindrical structure, the cross-sectional diameter of described cylindrical structure is 10mm, length is 40mm, and the hollow cavity of described cylindrical structure fills Ke Er liquid.
7. the Ke Er sensor of employing delustring treatment technology according to claim 2, is characterized in that, the length of described delustring plate is 85mm.
8. the Ke Er sensor of employing delustring treatment technology according to claim 1, it is characterized in that, described polaroid is set to polyvinyl alcohol film.
9. the Ke Er sensor of employing delustring treatment technology according to claim 1, is characterized in that, the extinction ratio of the described polarizer (4) and analyzer (7) is 10000:1.
10. the Ke Er sensor measuring system based on employing delustring treatment technology, it is characterized in that, comprising: the arbitrary described Ke Er sensor of polarization maintaining optical fibre (9), multimembrane optical fiber (10), lasing light emitter (11), information acquisition unit (12) and claim 1-9;
Described Ke Er sensor signal input end is connected with described lasing light emitter (11) by described polarization maintaining optical fibre (9), and described Ke Er sensor signal output terminal is connected with described information acquisition unit (12) by described multimembrane optical fiber (10).
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| CN201610054768.6A CN105548730B (en) | 2016-01-27 | 2016-01-27 | A kind of Ke Er sensor and measuring system using delustring processing technique |
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| CN201610054768.6A CN105548730B (en) | 2016-01-27 | 2016-01-27 | A kind of Ke Er sensor and measuring system using delustring processing technique |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2730130C1 (en) * | 2020-01-20 | 2020-08-17 | Общество с ограниченной ответственностью "Ботлихский радиозавод" | Optical signal switch using the kerr effect |
| CN114720782A (en) * | 2022-03-10 | 2022-07-08 | 云南电网有限责任公司电力科学研究院 | Packaging device and electro-optical sensor |
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| US4465969A (en) * | 1980-01-12 | 1984-08-14 | Sumitomo Electric Industries, Ltd. | Voltage and electric field measuring device using light |
| CN202948074U (en) * | 2012-12-21 | 2013-05-22 | 哈尔滨理工大学 | Liquid medium empty spot electric field distribution measuring device based on Kerr effect |
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| RU2730130C1 (en) * | 2020-01-20 | 2020-08-17 | Общество с ограниченной ответственностью "Ботлихский радиозавод" | Optical signal switch using the kerr effect |
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| CN114720782A (en) * | 2022-03-10 | 2022-07-08 | 云南电网有限责任公司电力科学研究院 | Packaging device and electro-optical sensor |
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