JPS573020A - Temperature measuring method - Google Patents

Temperature measuring method

Info

Publication number
JPS573020A
JPS573020A JP7744780A JP7744780A JPS573020A JP S573020 A JPS573020 A JP S573020A JP 7744780 A JP7744780 A JP 7744780A JP 7744780 A JP7744780 A JP 7744780A JP S573020 A JPS573020 A JP S573020A
Authority
JP
Japan
Prior art keywords
transmittivity
measured
optical fiber
temperature
agcl
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.)
Granted
Application number
JP7744780A
Other languages
Japanese (ja)
Other versions
JPH0250408B2 (en
Inventor
Mizuho Nakahira
Takao Shioda
Takeru Fukuda
Ryozo Yamauchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Ltd
NTT Inc
Original Assignee
Fujikura Ltd
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujikura Ltd, Nippon Telegraph and Telephone Corp filed Critical Fujikura Ltd
Priority to JP7744780A priority Critical patent/JPS573020A/en
Publication of JPS573020A publication Critical patent/JPS573020A/en
Publication of JPH0250408B2 publication Critical patent/JPH0250408B2/ja
Granted legal-status Critical Current

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)

Abstract

PURPOSE:To perform temperature measurement in a low temperature range simply and accurately by utilizing the fact that the transmittivity of crystalline optical fiber to ultraviolet and visible rays depends on temperature. CONSTITUTION:Crystalline optical fiber is set at a position where temperature is to be measured and ultraviolet and visible rays are passed through it. The temperature is measured by transmittivity of the rays. For instance, a crystalline optical fiber 1 in which the core is AgCl (100%) and the clad is AgCl (92%)-AgBr (7%) is wound round a part 2 to be measured. Light of 0.42 micron in wavelength is passed to this from a laser emitter 3 and the transmittivity is measured with a light receiver 4 consisting of a photoelectric multiplier. In this case, for instance, transmittivity of 0, 6.2 and 81% are obtained at 198K, 89K and 3K respectively, and thus an accurate temperature measurement is made possible over a wide range in a low temperature range. Crystals of various halogenides can be used as material for optical fiber.
JP7744780A 1980-06-09 1980-06-09 Temperature measuring method Granted JPS573020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7744780A JPS573020A (en) 1980-06-09 1980-06-09 Temperature measuring method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7744780A JPS573020A (en) 1980-06-09 1980-06-09 Temperature measuring method

Publications (2)

Publication Number Publication Date
JPS573020A true JPS573020A (en) 1982-01-08
JPH0250408B2 JPH0250408B2 (en) 1990-11-02

Family

ID=13634269

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7744780A Granted JPS573020A (en) 1980-06-09 1980-06-09 Temperature measuring method

Country Status (1)

Country Link
JP (1) JPS573020A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0280877A (en) * 1988-09-14 1990-03-20 Matsushita Electric Ind Co Ltd Temperature safety valve device
FR2664695A1 (en) * 1990-07-12 1992-01-17 Univ Pasteur FIBER OPTIC TEMPERATURE SENSOR.
JPH0472810U (en) * 1990-10-26 1992-06-26

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104460772B (en) * 2014-12-11 2017-02-01 哈尔滨理工大学 Temperature control device and method based on phase transformation characteristics of ferroelectric crystal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0280877A (en) * 1988-09-14 1990-03-20 Matsushita Electric Ind Co Ltd Temperature safety valve device
FR2664695A1 (en) * 1990-07-12 1992-01-17 Univ Pasteur FIBER OPTIC TEMPERATURE SENSOR.
JPH0472810U (en) * 1990-10-26 1992-06-26

Also Published As

Publication number Publication date
JPH0250408B2 (en) 1990-11-02

Similar Documents

Publication Publication Date Title
GB2181830B (en) Temperature measurement
JPS5573011A (en) Mask forming method of optical fiber and face
JPS5489680A (en) Optical measuring method and optical measuring apparatus
JPS55142220A (en) Device for measuring wavelength
JPS57168126A (en) Device for detecting physical change
JPS5582032A (en) Out-off wavelength measuring method for lp11 mode in optical fiber and measuring unit
JPS5413356A (en) Optical excitation of optical fiber
JPS5435759A (en) Measuring method of numerical aperture of optical fibers
JPS5763430A (en) Temperature measurement for deep part by laser
JPS55155204A (en) Measuring instrument for thickness of film
JPS6449942A (en) Physical property measuring instrument for liquid
JPS5435757A (en) Measuring method of refractive index distribution of optical fibers
JPS5353348A (en) Optical fiber length measuring method and apparatus
JPS57198838A (en) Optical fiber temperature sensor
JPS56111446A (en) Photometric analyzer of cell-length modulation system
JPS57116234A (en) Measuring method for photo loss
JPS57148259A (en) Photo measuring method
SU922539A1 (en) Device for measuring temperature
JPS5779416A (en) Temperature measuring device
JPS53102058A (en) Making method of specimen for measuring diffractive index distribution of optical transmission fibers made of glass
JPS54104860A (en) Measuring method of optical fiber connection loss and measuring apparatus for the same
JPS5381287A (en) Photoluminescence measuring device
JPS62168034A (en) Humidity measurement method and hygrometer using optical fiber
JPS55163470A (en) Measuring method for delay time of laser range finding system
JPS5627632A (en) Method for measuring transmission characteristic of optical fiber