CN106153124A - A kind of optical fiber temperature and pressure integrative sensor - Google Patents
A kind of optical fiber temperature and pressure integrative sensor Download PDFInfo
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- CN106153124A CN106153124A CN201610821034.6A CN201610821034A CN106153124A CN 106153124 A CN106153124 A CN 106153124A CN 201610821034 A CN201610821034 A CN 201610821034A CN 106153124 A CN106153124 A CN 106153124A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 39
- 239000000835 fiber Substances 0.000 claims abstract description 29
- 239000011229 interlayer Substances 0.000 claims abstract description 26
- 102100024513 F-box only protein 6 Human genes 0.000 claims abstract description 23
- 101001052796 Homo sapiens F-box only protein 6 Proteins 0.000 claims abstract description 23
- 102100022116 F-box only protein 2 Human genes 0.000 claims abstract description 22
- 101000824158 Homo sapiens F-box only protein 2 Proteins 0.000 claims abstract description 22
- 102100026080 F-box only protein 44 Human genes 0.000 claims abstract description 21
- 101000913298 Homo sapiens F-box only protein 44 Proteins 0.000 claims abstract description 21
- 230000006698 induction Effects 0.000 claims abstract description 18
- 238000003466 welding Methods 0.000 claims abstract description 7
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 24
- 238000000034 method Methods 0.000 claims description 17
- 239000000956 alloy Substances 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 15
- 230000008676 import Effects 0.000 claims description 12
- 239000011230 binding agent Substances 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 229910052759 nickel Inorganic materials 0.000 claims description 10
- 229920001651 Cyanoacrylate Polymers 0.000 claims description 6
- MWCLLHOVUTZFKS-UHFFFAOYSA-N Methyl cyanoacrylate Chemical group COC(=O)C(=C)C#N MWCLLHOVUTZFKS-UHFFFAOYSA-N 0.000 claims description 6
- 239000010410 layer Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- BCAARMUWIRURQS-UHFFFAOYSA-N dicalcium;oxocalcium;silicate Chemical compound [Ca+2].[Ca+2].[Ca]=O.[O-][Si]([O-])([O-])[O-] BCAARMUWIRURQS-UHFFFAOYSA-N 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 238000010183 spectrum analysis Methods 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000035945 sensitivity Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 230000002277 temperature effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/36—Forming the light into pulses
- G01D5/38—Forming the light into pulses by diffraction gratings
Abstract
The invention discloses a kind of optical fiber temperature and pressure integrative sensor, it is characterised in that: include light source, circulator, spectroanalysis instrument and induction module；Described light source connects circulator by optical fiber, and circulator connects induction module and spectroanalysis instrument respectively；Described induction module is cylindrical housings, and described enclosure interior includes cavity and fiber grating, and described cavity is made up of cavity A, cavity B and interlayer；Described interlayer is located between cavity A and cavity B；Described housing surface is pasted with series welding FBG1, FBG2 and FBG3 fiber grating together, and FBG1, FBG2 and FBG3 fiber grating is pasted on the size path position of corresponding cavity A and cavity B respectively.Optical fiber temperature and pressure integrative sensor of the present invention can carry out the measurement of temperature and pressure simultaneously, solves the cross sensitivity of temperature and pressure simultaneously, improves the certainty of measurement of sensor.
Description
Technical field
The present invention relates to Fibre Optical Sensor field, especially a kind of optical fiber temperature and pressure integrative sensor.
Background technology
Temperature sensor and pressure transducer can be described as two kinds of sensors that sensor industry uses maximum, Er Qiewen
Degree sensor and pressure transducer are often used together.Need the when of measuring pressure and temperature, to be required for that pressure is installed to pass every time
Sensor and temperature sensor, inconvenient.Especially can account at the place of limited space, temperature sensor and pressure transducer
With a lot of spaces；Realization about the common sensor measured of temperature and pressure becomes more and more important.
Fiber-optic grating sensor be development in recent years the most rapidly, one of the fiber optic passive device that is most widely used, with
Tradition electrical sensor is compared, and fiber-optic grating sensor has simple in construction, good reliability, anticorrosive, anti-electromagnetic interference capability
By force, the advantages such as large-area multimetering can be carried out；Many physical parameters can be realized, such as district while temperature, pressure, flow etc.
Point measure, overcome that traditional sensors cost is high, certainty of measurement is low and the shortcoming of mutually crosstalk between multiple parameter；Fiber grating passes
Sensor can be used for the common measurement of temperature and pressure, but simultaneously because fiber grating pair temperature and strain are the most sensitive, optical fiber light
The change of grid centre wavelength acts on while being often decided by extraneous strain and temperature, under different stress effects and different temperatures
Under photoelasticity different, the effect of strain and temperature on fiber grating is coupling, and the wavelength change detecting single optical fiber cannot
Strain and temperature are distinguish between.
For the cross sensitivity problem of fiber grating, currently the majority uses the combination of two or more fiber gratings
Overcoming, this method needs two demodulation light source, two spectroanalysis instruments, not only increases cost, and passes to fiber grating
The actual application of sensor is made troubles, the advantage losing fiber-optic grating sensor distinctive Wavelength-encoding characteristic；Used simultaneously
The measuring method of fiber grating calculate extremely complex, amount of calculation is many, needs the parameter measured a lot, and the precision measured and
The precision calculated is not the most fine, it is impossible to reach the purpose of high-acruracy survey.
Summary of the invention
The goal of the invention of the present invention is: for the problem of above-mentioned existence, it is provided that one is simple and convenient can solve the problem that temperature
Measure with while pressure, and the strain of temperature and pressure is distinguished in measuring at the same time, solve the light of cross sensitivity problem
Fine temperature and pressure integrative sensor.
The technical solution used in the present invention is as follows:
One optical fiber temperature and pressure integrative sensor of the present invention, including light source, circulator, spectroanalysis instrument and induction module；Institute
Stating light source and connect circulator by optical fiber, circulator connects induction module and spectroanalysis instrument respectively；Described induction module is circle
Cylindrical shell, described enclosure interior includes cavity and fiber grating, and described cavity is made up of cavity A, cavity B and interlayer；Described
Interlayer is located between cavity A and cavity B, and interlayer is provided with import and export M；Described cavity B is convex cavity, including big footpath cavity
With path cavity, the cavity wall on cavity B interlayer opposite is provided with import and export N；Described housing surface is pasted with series welding one
FBG1, FBG2 and FBG3 fiber grating risen, FBG1, FBG2 and FBG3 fiber grating is pasted on corresponding cavity A and sky respectively
The size path position of chamber B.
Above structure, detected gas or liquid are from importing and exporting M and importing and exporting N entrance cavity, and the cavity wall of cavity is being surveyed
Deform upon under the pressure and temperature effect of gas or liquid, and be delivered in fiber grating, drive FBG to produce deformation, cause
The drift of wavelength, records wave length shift by spectroanalysis instrument, according to corresponding relation, just can calculate pressure and temperature.
One optical fiber temperature and pressure integrative sensor of the present invention, described spectroanalysis instrument connects computer, carries out data process.
One optical fiber temperature and pressure integrative sensor of the present invention, the chamber of big footpath cavity in the cavity wall thickness of described cavity A and cavity B
Wall thickness is identical；Described alite paste is cyanoacrylate 502-1 binding agent.
Above structure, when being under pressure and during temperature, due to the transmission effect of strain, drives FBG to produce deformation, FBG2 and
FBG3 is pasted onto in same material, temperature the wavelength shift caused is identical, and the inner wall thickness of cavity B is different, answering of transmission
Variable is different, and the deformation quantity that FBG produces is different, and then Bragg wavelength drift amount is different, by measuring wavelength shift, permissible
Try to achieve pressure；The thickness of FBG1 with FBG2 is identical, pressure the wavelength shift caused is identical, owing to FBG1 and FBG2 is pasted onto
Not in same material, the deformation quantity that FBG produces is different, and then Bragg wavelength drift amount is different, by measuring wavelength shift,
Can be in the hope of temperature.
One optical fiber temperature and pressure integrative sensor of the present invention, the cavity wall of described cavity A is 10MoWVNb alloy-layer, cavity B's
Cavity wall is nickel based highly elastic alloy layer.
Above structure, 10MoWVNb alloy and nickel based highly elastic alloy all have the highest elastic sensitivity and temperature expansion
Property, more significantly deformation can be produced under pressure and temperature effect, thus be conducive to measuring.
One optical fiber temperature and pressure integrative sensor of the present invention, the chemical composition of described nickel based highly elastic alloy includes: Be:1.9-
2.5wt%, Ti:0.4-0.6wt%, Fe:0.3wt%, Cu:0.1wt%, Al:0.1wt%, Si:0.05wt%, Mn:
0.03wt%, C:0.03wt%, S:0.01wt%, P:0.01wt%, surplus is Ni and inevitable impurity.
Above nickel based highly elastic alloy, has resisting fatigue, high temperature resistance softening, resistance to stress decay and corrosion resistance, has the highest
Mechanical property and elastic performance, obvious deformation can be produced under pressure and temperature effect.
One optical fiber temperature and pressure integrative sensor of the present invention, also includes the manufacture method of optical fiber temperature and pressure integrative sensor: with
10MoWVNb alloy is that material makes spill cavity A, and its inner chamber is square cavity A, makes with nickel based highly elastic alloy for material
Spill cavity B, the opening part of interlayer and spill cavity A, through being made as convex cavity B, is pasted onto by its inner chamber by binding agent
Together, interlayer is opened an import and export M, pastes spill cavity B at interlayer another side by binding agent, at cavity B interlayer simultaneously
Import and export N it is provided with in the cavity wall on opposite；Paste series welding at housing surface by cyanoacrylate 502-1 binding agent to exist
FBG1, FBG2 and FBG3 fiber grating together, position, described FBG1, FBG2 paste section corresponding with FBG3 fiber grating is respectively sky
The big path cavity of chamber A and cavity B；Cavity is fixed in the housing.
One optical fiber temperature and pressure integrative sensor of the present invention, also includes the measuring method of optical fiber temperature and pressure integrative sensor, its bag
Include following step:
Step one: send broadband light from light source, enters the port of circulator；
Step 2: light from the exit ports of circulator out, enters induction module；
Step 3: after the modulation of induction module, is reflected back circulator, then penetrates from another port；
Step 4: spectroanalysis instrument receives emergent light, carries out spectrum analysis, obtains FBG1, FBG2 the most corresponding with FBG3
Peak wavelength λ1、λ2And λ3, analysis result is uploaded to computer；
Step 5: computer is according to formulaCalculate temperature, according toCalculate pressure, KP
For the pressure-sensitivity of sensor, KTFor the temperature control of sensor, λ0For initial wavelength, λ1For the peak wavelength of FBG1, λ2
For the peak wavelength of FBG2, λ3Peak wavelength for FBG3.
Above method, temperature and pressure can produce deformation effect to sensor, when setting identical temperature action, pass through
The measurement of the change that different pressures effect produces, obtains the relation of pressure and change, simultaneously when setting uniform pressure effect, logical
Cross the measurement of the variable quantity that different temperatures effect produces, obtain the relation of temperature and change, it is possible to record pressure and temperature simultaneously
The size of degree, method computing used is simple, and result is accurate, it is possible to measure temperature and pressure simultaneously.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
1, the realization measured while temperature and pressure, fiber-optic grating sensor by section gratings different on single fiber in temperature
There is wave length shift under the indirect action of degree and pressure, according to wavelength shift and temperature and the relation of pressure, can survey simultaneously
Amount temperature and pressure.
2, the strain of temperature and pressure can be distinguished, solve fiber-optic grating sensor simultaneously in temperature and pressure is measured
The cross sensitivity problem occurred, it is to avoid the biggest error occurs during measurement, obtains more accurate measured value.Distinguish in the sensor
Identical according to same material wavelength shift at the same temperature, by measuring the drift value under differently strained effect, try to achieve pressure
Power；Identical according to the lower wavelength shift of uniform pressure strain, by measuring different materials drift value at temperature, try to achieve temperature
Degree；Thus temperature and pressure is distinguished, improve certainty of measurement.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 is the structural representation of the present invention a kind of optical fiber temperature and pressure integrative sensor.
Fig. 2 is the structural representation of induction module in the present invention.
Detailed description of the invention
All features disclosed in this specification, or disclosed all methods or during step, except mutually exclusive
Feature and/or step beyond, all can combine by any way.
Any feature disclosed in this specification (including any accessory claim, summary), unless specifically stated otherwise,
By other equivalences or there is the alternative features of similar purpose replaced.I.e., unless specifically stated otherwise, each feature is a series of
An example in equivalence or similar characteristics.
Such as Fig. 1, one optical fiber temperature and pressure integrative sensor of the present invention, including light source, circulator, spectroanalysis instrument and sensing mould
Block；Described light source connects circulator by optical fiber, and circulator connects induction module and spectroanalysis instrument respectively；Described induction module
For cylindrical housings, described enclosure interior includes cavity and fiber grating, and described cavity is made up of cavity A, cavity B and interlayer；
Described interlayer is located between cavity A and cavity B, and interlayer is provided with import and export M；Described cavity B is convex cavity, including big footpath
Cavity and path cavity, the cavity wall on cavity B interlayer opposite is provided with import and export N；Described housing surface is pasted with series welding
FBG1, FBG2 and FBG3 fiber grating together, FBG1, FBG2 and FBG3 fiber grating be pasted on respectively corresponding cavity A with
And the size path position of cavity B.
One optical fiber temperature and pressure integrative sensor of the present invention, described spectroanalysis instrument connects computer, carries out data process.
One optical fiber temperature and pressure integrative sensor of the present invention, the chamber of big footpath cavity in the cavity wall thickness of described cavity A and cavity B
Wall thickness is identical；Described alite paste is cyanoacrylate 502-1 binding agent.
One optical fiber temperature and pressure integrative sensor of the present invention, the cavity wall of described cavity A is 10MoWVNb alloy-layer, cavity B's
Cavity wall is nickel based highly elastic alloy layer.
One optical fiber temperature and pressure integrative sensor of the present invention, the chemical composition of described nickel based highly elastic alloy includes: Be:1.9-
2.5wt%, Ti:0.4-0.6wt%, Fe:0.3wt%, Cu:0.1wt%, Al:0.1wt%, Si:0.05wt%, Mn:
0.03wt%, C:0.03wt%, S:0.01wt%, P:0.01wt%, surplus is Ni and inevitable impurity.
One optical fiber temperature and pressure integrative sensor of the present invention, also includes the manufacture method of optical fiber temperature and pressure integrative sensor: with
10MoWVNb alloy is that material makes spill cavity A, and its inner chamber is square cavity A, makes with nickel based highly elastic alloy for material
Spill cavity B, the opening part of interlayer and spill cavity A, through being made as convex cavity B, is pasted onto by its inner chamber by binding agent
Together, interlayer is opened an import and export M, pastes spill cavity B at interlayer another side by binding agent, at cavity B interlayer simultaneously
Import and export N it is provided with in the cavity wall on opposite；Paste series welding at housing surface by cyanoacrylate 502-1 binding agent to exist
FBG1, FBG2 and FBG3 fiber grating together, position, described FBG1, FBG2 paste section corresponding with FBG3 fiber grating is respectively sky
The big path cavity of chamber A and cavity B；Cavity is fixed in the housing.
One optical fiber temperature and pressure integrative sensor of the present invention, also includes the measuring method of optical fiber temperature and pressure integrative sensor, its bag
Include following step:
Step one: send broadband light from light source, enters the port of circulator；
Step 2: light from the exit ports of circulator out, enters induction module；
Step 3: after the modulation of induction module, is reflected back circulator, then penetrates from another port；
Step 4: spectroanalysis instrument receives emergent light, carries out spectrum analysis, obtains FBG1, FBG2 the most corresponding with FBG3
Peak wavelength λ1、λ2And λ3, analysis result is uploaded to computer；
Step 5: computer is according to formulaCalculate temperature, according toCalculate pressure, KP
For the pressure-sensitivity of sensor, KTFor the temperature control of sensor, λ0For initial wavelength, λ1For the peak wavelength of FBG1, λ2
For the peak wavelength of FBG2, λ3Peak wavelength for FBG3.
The invention is not limited in aforesaid detailed description of the invention.The present invention expands to any disclose in this manual
New feature or any new combination, and the arbitrary new method that discloses or the step of process or any new combination.
Claims (7)
1. an optical fiber temperature and pressure integrative sensor, it is characterised in that: include light source, circulator, spectroanalysis instrument and induction module；
Described light source connects circulator by optical fiber, and circulator connects induction module and spectroanalysis instrument respectively；Described induction module is
Cylindrical housings, described enclosure interior includes cavity and fiber grating, and described cavity is made up of cavity A, cavity B and interlayer；Institute
State interlayer to be located between cavity A and cavity B, interlayer is provided with import and export M；Described cavity B is convex cavity, empty including big footpath
Chamber and path cavity, the cavity wall on cavity B interlayer opposite is provided with import and export N；Described housing surface is pasted with series welding and exists
FBG1, FBG2 and FBG3 fiber grating together, FBG1, FBG2 and FBG3 fiber grating be pasted on respectively corresponding cavity A and
The size path position of cavity B.
A kind of optical fiber temperature and pressure integrative sensor the most according to claim 1, it is characterised in that: described spectroanalysis instrument connects
Computer, carries out data process.
A kind of optical fiber temperature and pressure integrative sensor the most according to claim 1, it is characterised in that: the cavity wall of described cavity A is thick
Spend identical with the cavity wall thickness of big footpath cavity in cavity B；Described alite paste is cyanoacrylate 502-1 binding agent.
A kind of optical fiber temperature and pressure integrative sensor the most according to claim 1, it is characterised in that: the cavity wall of described cavity A is
10MoWVNb alloy-layer, the cavity wall of cavity B is nickel based highly elastic alloy layer.
A kind of optical fiber temperature and pressure integrative sensor the most according to claim 4, it is characterised in that: described nickel based highly elastic alloy
Chemical composition include: Be:1.9-2.5wt%, Ti:0.4-0.6wt%, Fe:0.3wt%, Cu:0.1wt%, Al:
0.1wt%, Si:0.05wt%, Mn:0.03wt%, C:0.03wt%, S:0.01wt%, P:0.01wt%, surplus is Ni and not
Evitable impurity.
A kind of optical fiber temperature and pressure integrative sensor the most according to claim 1, it is characterised in that: also include optical fiber temperature and pressure one
The manufacture method of sensor: making spill cavity A with 10MoWVNb alloy for material, its inner chamber is square cavity A, with Ni-based height
Elastic alloy is that material makes spill cavity B, and its inner chamber is through being made as convex cavity B, by interlayer and the opening of spill cavity A
Place is pasted together by binding agent, opens an import and export M, paste spill at interlayer another side by binding agent simultaneously on interlayer
Cavity B, is provided with import and export N in the cavity wall on cavity B interlayer opposite；Glued by cyanoacrylate 502-1 at housing surface
Mixture pastes series welding FBG1, FBG2 and FBG3 fiber grating together, described FBG1, FBG2 and FBG3 fiber grating pair
Position should be pasted and be respectively the big path cavity of cavity A and cavity B；Cavity is fixed in the housing.
A kind of optical fiber temperature and pressure integrative sensor the most according to claim 1, it is characterised in that: also include optical fiber temperature and pressure one
The measuring method of sensor, it includes following step:
Step one: send broadband light from light source, enters the port of circulator；
Step 2: light from the exit ports of circulator out, enters induction module；
Step 3: after the modulation of induction module, is reflected back circulator, then penetrates from another port；
Step 4: spectroanalysis instrument receives emergent light, carries out spectrum analysis, obtains FBG1, FBG2 peak the most corresponding with FBG3
Value wavelength X1、λ2And λ3, analysis result is uploaded to computer；
Step 5: computer is according to formulaCalculate temperature, according toCalculate pressure, KPFor passing
The pressure-sensitivity of sensor, KTFor the temperature control of sensor, λ0For initial wavelength, λ1For the peak wavelength of FBG1, λ2For
The peak wavelength of FBG2, λ3Peak wavelength for FBG3.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610821034.6A CN106153124B (en) | 2016-09-13 | 2016-09-13 | A kind of optical fiber temperature and pressure integrative sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610821034.6A CN106153124B (en) | 2016-09-13 | 2016-09-13 | A kind of optical fiber temperature and pressure integrative sensor |
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| CN106153124B CN106153124B (en) | 2018-05-08 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107894527A (en) * | 2017-12-20 | 2018-04-10 | 天津理工大学 | Random waveguide optical grating voltage sensor and its voltage detection method based on electrooptic effect |
| CN107966170A (en) * | 2017-11-27 | 2018-04-27 | 山东省科学院激光研究所 | Monitor sensing device and system |
| CN108120479A (en) * | 2017-11-24 | 2018-06-05 | 辽宁世达通用航空股份有限公司 | Medicinal liquid flow flowmeter sensor is sprayed in a kind of agricultural |
| CN108801308A (en) * | 2018-08-29 | 2018-11-13 | 闫静 | A kind of fiber grating Multifunction Sensor |
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| CN1384341A (en) * | 2002-06-14 | 2002-12-11 | 清华大学 | Optical-fiber grating sensor detecting pressure temperature simultaneously |
| CN2786586Y (en) * | 2003-11-26 | 2006-06-07 | 南开大学 | Automatic temperature compensation optical fiber and raster pressure intensity sensor |
| CN2833523Y (en) * | 2005-09-29 | 2006-11-01 | 西安石油大学 | Fiber grating sensor capable of simultaneously and respectively measuring pressure and temperature |
| US20080212917A1 (en) * | 2005-07-02 | 2008-09-04 | Schlumberger Technology Corporation | Fiber Optic Temperature and Pressure Sensor and System Incorporating Same |
| CN201364167Y (en) * | 2009-01-16 | 2009-12-16 | 比亚迪股份有限公司 | Fiber grating sensor and system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1384341A (en) * | 2002-06-14 | 2002-12-11 | 清华大学 | Optical-fiber grating sensor detecting pressure temperature simultaneously |
| CN2786586Y (en) * | 2003-11-26 | 2006-06-07 | 南开大学 | Automatic temperature compensation optical fiber and raster pressure intensity sensor |
| US20080212917A1 (en) * | 2005-07-02 | 2008-09-04 | Schlumberger Technology Corporation | Fiber Optic Temperature and Pressure Sensor and System Incorporating Same |
| CN2833523Y (en) * | 2005-09-29 | 2006-11-01 | 西安石油大学 | Fiber grating sensor capable of simultaneously and respectively measuring pressure and temperature |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108120479A (en) * | 2017-11-24 | 2018-06-05 | 辽宁世达通用航空股份有限公司 | Medicinal liquid flow flowmeter sensor is sprayed in a kind of agricultural |
| CN107966170A (en) * | 2017-11-27 | 2018-04-27 | 山东省科学院激光研究所 | Monitor sensing device and system |
| CN107894527A (en) * | 2017-12-20 | 2018-04-10 | 天津理工大学 | Random waveguide optical grating voltage sensor and its voltage detection method based on electrooptic effect |
| CN107894527B (en) * | 2017-12-20 | 2020-07-31 | 天津理工大学 | Random waveguide grating voltage sensor based on electro-optic effect and voltage detection method thereof |
| CN108801308A (en) * | 2018-08-29 | 2018-11-13 | 闫静 | A kind of fiber grating Multifunction Sensor |
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| Publication number | Publication date |
|---|---|
| CN106153124B (en) | 2018-05-08 |
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