CN107091699A - A kind of optical fiber temperature sensor - Google Patents
A kind of optical fiber temperature sensor Download PDFInfo
- Publication number
- CN107091699A CN107091699A CN201710513572.3A CN201710513572A CN107091699A CN 107091699 A CN107091699 A CN 107091699A CN 201710513572 A CN201710513572 A CN 201710513572A CN 107091699 A CN107091699 A CN 107091699A
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- sensor
- temperature sensor
- detection probe
- pressure chamber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
The invention provides a kind of optical fiber temperature sensor, including housing；The housing internal upper part is provided with elastic temperature fibre optical sensor, the top of the housing is provided with optical fiber collimator, the upper end of optical fiber collimator is connected with optical fiber, and the lower end of the elastic temperature fibre optical sensor is provided with pressure chamber, and the pressure chamber is connected by pressure transmission pipeline with detection probe.The present invention in detection probe by setting mercury, mercury expands according to the size of detection environment and pressure chamber is extruded into pressure transmission pipeline, flexible sheet is set to raise up, cause continuous light intensity change in optical fiber, the output for being input to signal of signal is transmitted by optical fiber, therefore it will not be disturbed by extraneous electromagnetic signals completely, sensor sheet is as essential safe type, therefore this device can apply the measure in the temperature of substantially any material, particularly the measure of some harmful, inflammable explosive mass temperatures.
Description
Technical field
The present invention relates to a kind of optical fiber temperature sensor.
Background technology
In industrial production and management, the sensor based on electrical principles, such as：Piezoresistive transducer, electricity
Appearance formula, ultrasonic sensor etc. are widely used.But, to oil class I liquid I or other high-risks such as inflammable and explosive
When liquid and deep-etching liquid carry out pressure measxurement, then the pressure sensor using nonelectronic safe anti-explosion is needed, because
May set off an explosion etc. the appearance of dangerous situation for electric spark.Currently there are no it is a kind of be applied to measurement oil class I liquid I or
The pressure sensor of other inflammable and explosive contour dangerous liquids and deep-etching liquid.
The content of the invention
In order to solve the above technical problems, the invention provides a kind of optical fiber temperature sensor.
The present invention is achieved by the following technical programs.
A kind of optical fiber temperature sensor that the present invention is provided, including housing；The housing internal upper part is provided with elastic temperature
Fibre optical sensor, the top of the housing is provided with optical fiber collimator, and the upper end of optical fiber collimator is connected with optical fiber, the elasticity
The lower end of optical fiber temperature sensor is provided with pressure chamber, and the pressure chamber is connected by pressure transmission pipeline with detection probe.
The pressure chamber is in back taper.
The elastic temperature fibre optical sensor is fixed in stopper slot.
The pressure transmission pipeline is helical pipe.
Mercury is provided with the detection probe.
The upper end of the detection probe is taper.
Packed layer parcel pressure transmission pipeline is provided between the elastic temperature fibre optical sensor and detection probe.
The beneficial effects of the present invention are：By setting mercury in detection probe, mercury is according to the size for detecting environment
Expand and pressure chamber is extruded into pressure transmission pipeline, flexible sheet is raised up, cause continuous light in optical fiber
Strong change, the output for being input to signal of signal is transmitted by optical fiber, therefore it will not be done by extraneous electromagnetic signals completely
Disturb, sensor sheet is as essential safe type, therefore this device can apply the measure in the temperature of substantially any material, especially
It is the measure of some harmful, inflammable explosive mass temperatures.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1- housings, 2- optical fiber collimators, 3- optical fiber, 4- elastic temperature fibre optical sensors, 5- pressure transmission pipelines,
6- packed layers, 7- detection probes, 8- pressure chambers, 9- stopper slots, 10- ventholes.
Embodiment
Be described further below technical scheme, but claimed scope be not limited to it is described.
A kind of optical fiber temperature sensor as shown in Figure 1, including housing 1；The internal upper part of housing 1 is provided with elastic temperature
Fibre optical sensor 4, the top of the housing 1 is provided with optical fiber collimator 2, and the upper end of optical fiber collimator 2 is connected with optical fiber 3, institute
The lower end for stating elastic temperature fibre optical sensor 4 is provided with pressure chamber 8, and the pressure chamber 8 is visited by pressure transmission pipeline 5 with detection
First 7 connection.By setting mercury in detection probe, mercury expands according to the size of detection environment and enters pressure transmission pipeline
Pressure chamber is extruded, flexible sheet is raised up, cause continuous light intensity change in optical fiber, signal is input to signal
Output be all to be transmitted by optical fiber, therefore it will not be disturbed by extraneous electromagnetic signals completely, and sensor sheet is as essential safety
Type, therefore this device can apply the measure in the temperature of substantially any material, be particularly some harmful, inflammable, explosive substances
The measure of matter temperature.
The pressure chamber 8 is in back taper.The pressure for enabling pressure transmission pipeline 5 to pass out disperses to carry out flexible sheet
Extruding.
The elastic temperature fibre optical sensor 4 is fixed in stopper slot 9.
The pressure transmission pipeline 5 is helical pipe.Have in mercury under enough expansion spaces, the profile of sensor is big
It is big to reduce.
Mercury is provided with the detection probe 7.
The upper end of the detection probe 7 is taper.Expand the inlet -duct area for entering pressure transmission pipeline after mercury expansion, prevent
Only pressure is excessive in detection probe.
The parcel pressure transmission of packed layer 6 pipeline 5 is provided between the elastic temperature fibre optical sensor 4 and detection probe 7.
Claims (7)
1. a kind of optical fiber temperature sensor, including housing (1), it is characterised in that：Housing (1) internal upper part installs flexible temperature
Fibre optical sensor (4) is spent, the top of the housing (1) is provided with optical fiber collimator (2), the upper end of optical fiber collimator (2) and light
Fine (3) connection, the lower end of the elastic temperature fibre optical sensor (4) is provided with pressure chamber (8), and the pressure chamber (8) passes through pressure
Power transmission pipeline (5) is connected with detection probe (7).
2. optical fiber temperature sensor as claimed in claim 1, it is characterised in that：The pressure chamber (8) is in back taper.
3. optical fiber temperature sensor as claimed in claim 1, it is characterised in that：The elastic temperature fibre optical sensor (4) is solid
It is scheduled in stopper slot (9).
4. optical fiber temperature sensor as claimed in claim 1, it is characterised in that：The pressure transmission pipeline (5) is helix tube
Road.
5. optical fiber temperature sensor as claimed in claim 1, it is characterised in that：Mercury is provided with the detection probe (7).
6. optical fiber temperature sensor as claimed in claim 1, it is characterised in that：The upper end of the detection probe (7) is taper.
7. optical fiber temperature sensor as claimed in claim 1, it is characterised in that：The elastic temperature fibre optical sensor (4) and
Packed layer (6) parcel pressure transmission pipeline (5) is provided between detection probe (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513572.3A CN107091699A (en) | 2017-06-29 | 2017-06-29 | A kind of optical fiber temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710513572.3A CN107091699A (en) | 2017-06-29 | 2017-06-29 | A kind of optical fiber temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107091699A true CN107091699A (en) | 2017-08-25 |
Family
ID=59641312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710513572.3A Pending CN107091699A (en) | 2017-06-29 | 2017-06-29 | A kind of optical fiber temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107091699A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990912A (en) * | 2019-05-22 | 2019-07-09 | 上海应用技术大学 | A temperature detection device |
| CN112326060A (en) * | 2020-12-03 | 2021-02-05 | 南京信息工程大学 | A highly sensitive parallel dual F-P cavity optical fiber temperature sensing device |
Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191305460A (en) * | 1913-09-04 | 1914-09-04 | Max Louis Mellin | Improvements in or relating to Devices for Measuring Temperature. |
| CH257448A (en) * | 1944-01-21 | 1948-10-15 | Negretti & Zambra | Device sensitive to thermal variations. |
| GB2171516A (en) * | 1985-02-23 | 1986-08-28 | Stc Plc | Temperature sensors |
| CN1052946A (en) * | 1991-02-05 | 1991-07-10 | 田果成 | Mercury temperature sensor with optical fiber |
| JPH09229781A (en) * | 1996-02-21 | 1997-09-05 | Sumitomo Wiring Syst Ltd | Temperature detection apparatus |
| KR20030002218A (en) * | 2001-06-30 | 2003-01-08 | 학교법인 성균관대학 | Fiber optic thermometer |
| JP2003028697A (en) * | 2001-07-16 | 2003-01-29 | Sumitomo Electric Ind Ltd | Optical fiber water temperature, water level sensor |
| CN2621288Y (en) * | 2003-05-30 | 2004-06-23 | 欧进萍 | Distribution fiber-optical grating sensitive package temp. probe |
| CN2876724Y (en) * | 2005-10-11 | 2007-03-07 | 赵中华 | Digital optical fiber liquid level/pressure sensor |
| US20090147824A1 (en) * | 2007-12-07 | 2009-06-11 | Wt Systems, Llc | Wireless remote passive temperature sensor for monitoring food |
| CN102116692A (en) * | 2011-01-30 | 2011-07-06 | 宁波杉工结构监测与控制工程中心有限公司 | Fiber bragg grating pressure sensor and corresponding measuring method thereof |
| CN103335772A (en) * | 2013-07-15 | 2013-10-02 | 东北石油大学 | Temperature and pressure sensor of fiber Bragg grating |
| US20140241393A1 (en) * | 2011-09-09 | 2014-08-28 | Laboratoires national de métrologie et d'essais | Device for calibrating temperature, and methods for calibrating the temperature of and positioning a fiber-optic temperature sensor |
| CN203949743U (en) * | 2014-01-13 | 2014-11-19 | 南京工程学院 | A kind of fibre optic temperature sensor based on intensity modulation principle |
| CN104515621A (en) * | 2014-12-24 | 2015-04-15 | 天津大学 | Fiber optic temperature sensor based on sealed micro cavity gas thermal effect and manufacturing method of fiber optic temperature sensor |
| CN204944567U (en) * | 2015-09-16 | 2016-01-06 | 济南沛华信息科技有限公司 | A kind of teletransmission ultrasonic water meter with pressure detection |
| CN206945172U (en) * | 2017-06-29 | 2018-01-30 | 大唐贵州兴仁发电有限公司 | A kind of optical fiber temperature sensor |
-
2017
- 2017-06-29 CN CN201710513572.3A patent/CN107091699A/en active Pending
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191305460A (en) * | 1913-09-04 | 1914-09-04 | Max Louis Mellin | Improvements in or relating to Devices for Measuring Temperature. |
| CH257448A (en) * | 1944-01-21 | 1948-10-15 | Negretti & Zambra | Device sensitive to thermal variations. |
| GB2171516A (en) * | 1985-02-23 | 1986-08-28 | Stc Plc | Temperature sensors |
| CN1052946A (en) * | 1991-02-05 | 1991-07-10 | 田果成 | Mercury temperature sensor with optical fiber |
| JPH09229781A (en) * | 1996-02-21 | 1997-09-05 | Sumitomo Wiring Syst Ltd | Temperature detection apparatus |
| KR20030002218A (en) * | 2001-06-30 | 2003-01-08 | 학교법인 성균관대학 | Fiber optic thermometer |
| JP2003028697A (en) * | 2001-07-16 | 2003-01-29 | Sumitomo Electric Ind Ltd | Optical fiber water temperature, water level sensor |
| CN2621288Y (en) * | 2003-05-30 | 2004-06-23 | 欧进萍 | Distribution fiber-optical grating sensitive package temp. probe |
| CN2876724Y (en) * | 2005-10-11 | 2007-03-07 | 赵中华 | Digital optical fiber liquid level/pressure sensor |
| US20090147824A1 (en) * | 2007-12-07 | 2009-06-11 | Wt Systems, Llc | Wireless remote passive temperature sensor for monitoring food |
| CN102116692A (en) * | 2011-01-30 | 2011-07-06 | 宁波杉工结构监测与控制工程中心有限公司 | Fiber bragg grating pressure sensor and corresponding measuring method thereof |
| US20140241393A1 (en) * | 2011-09-09 | 2014-08-28 | Laboratoires national de métrologie et d'essais | Device for calibrating temperature, and methods for calibrating the temperature of and positioning a fiber-optic temperature sensor |
| CN103335772A (en) * | 2013-07-15 | 2013-10-02 | 东北石油大学 | Temperature and pressure sensor of fiber Bragg grating |
| CN203949743U (en) * | 2014-01-13 | 2014-11-19 | 南京工程学院 | A kind of fibre optic temperature sensor based on intensity modulation principle |
| CN104515621A (en) * | 2014-12-24 | 2015-04-15 | 天津大学 | Fiber optic temperature sensor based on sealed micro cavity gas thermal effect and manufacturing method of fiber optic temperature sensor |
| CN204944567U (en) * | 2015-09-16 | 2016-01-06 | 济南沛华信息科技有限公司 | A kind of teletransmission ultrasonic water meter with pressure detection |
| CN206945172U (en) * | 2017-06-29 | 2018-01-30 | 大唐贵州兴仁发电有限公司 | A kind of optical fiber temperature sensor |
Non-Patent Citations (2)
| Title |
|---|
| 裴丽,江中澳,黄燕平,简水生: "新型光纤温度传感器研究", 压电与声光, no. 02, pages 100 - 102 * |
| 高浠萌: "测温式光纤电流传感器关键技术的研究", 中国优秀硕士学位论文全文数据库 信息科技, no. 7, pages 140 - 232 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109990912A (en) * | 2019-05-22 | 2019-07-09 | 上海应用技术大学 | A temperature detection device |
| CN109990912B (en) * | 2019-05-22 | 2024-06-14 | 上海应用技术大学 | Temperature detection device |
| CN112326060A (en) * | 2020-12-03 | 2021-02-05 | 南京信息工程大学 | A highly sensitive parallel dual F-P cavity optical fiber temperature sensing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8805128B2 (en) | Multi-point pressure sensor and uses thereof | |
| CN204679181U (en) | The fiber-optic grating sensor that tube fluid pressure and temperature is measured simultaneously | |
| CN203163913U (en) | Diaphragm type fiber bragg grating pressure sensor with temperature compensation | |
| CN103968775A (en) | Pipeline strain real-time detector suitable for high-temperature environment | |
| CN104595727A (en) | Pipeline impact and leakage locating method based on distributed FBG (Fiber Bragg Grating) sensing network | |
| CN101995485B (en) | Target fiber grating rheometer | |
| CN105181191A (en) | Tunable optical fiber miniature Fabry-Perot pressure sensing device | |
| CN203857939U (en) | Pipeline strain real-time detector suitable for high-temperature environment and detection system | |
| CN203857938U (en) | Optical fiber Prague grating type pipeline strain detector under high-temperature environment and detection system | |
| CN103926220A (en) | Annular optical fiber gas sensor coated with graphene film | |
| CN107091699A (en) | A kind of optical fiber temperature sensor | |
| CN110261893A (en) | A kind of adjustable all -fiber acceleration microseismic monitoring sensor probe of damping | |
| CN103712730B (en) | A kind of fiber grating dynamic high-pressure sensor | |
| CN206074026U (en) | Oil tank temperature liquid level monitoring device based on fiber grating | |
| CN109163843A (en) | A kind of fiber bragg grating pressure sensor being controllably pre-stretched | |
| CN105387968A (en) | Optical fiber cladding surface Bragg grating temperature self-compensating pressure sensor | |
| CN109186825B (en) | An optical fiber macrobend pressure sensor and its measurement system | |
| CN206945172U (en) | A kind of optical fiber temperature sensor | |
| CN201408093Y (en) | Double-tube Fiber Bragg Grating Temperature Sensor Insensitive to Applied Stress and Strain | |
| CN204287026U (en) | Fiber Bragg Grating Humidity Sensing Structure | |
| CN103983385A (en) | Ellipsoidal optical fiber pressure sensor and optical fiber fault pressure point detection method | |
| CN101782443B (en) | Full-mechanized hydraulic support fiber bragg grating pressure sensor | |
| Vorathin et al. | Low pressure pipeline leak localization using highly sensitive rubber-based diaphragm FBG pressure sensors and NPW method | |
| CN100353167C (en) | Sensing device for optical fiber optical grating flow speed | |
| CN207689040U (en) | A kind of New temperature fibre optical sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20240220 |
|
| AD01 | Patent right deemed abandoned |