JPS6420422A - Method and apparatus for measuring fiber optic temperature - Google Patents

Method and apparatus for measuring fiber optic temperature

Info

Publication number
JPS6420422A
JPS6420422A JP8422388A JP8422388A JPS6420422A JP S6420422 A JPS6420422 A JP S6420422A JP 8422388 A JP8422388 A JP 8422388A JP 8422388 A JP8422388 A JP 8422388A JP S6420422 A JPS6420422 A JP S6420422A
Authority
JP
Japan
Prior art keywords
temperature
converter
fiber optic
light
crystal
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
Application number
JP8422388A
Other languages
Japanese (ja)
Inventor
Kajiyanto Isuko
Reeto Ari
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.)
ARUTEIMU CONTROL Oy
Vaisala Oy
Original Assignee
ARUTEIMU CONTROL Oy
Vaisala Oy
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 ARUTEIMU CONTROL Oy, Vaisala Oy filed Critical ARUTEIMU CONTROL Oy
Publication of JPS6420422A publication Critical patent/JPS6420422A/en
Pending 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
    • G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
    • G01K11/14—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of inorganic materials

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Radiation Pyrometers (AREA)

Abstract

PURPOSE: To obtain a new fiber optic temperature measuring instrument which can measure the temperature of an object regardless of the magnitude of the temperature by using an indirect transition energy gap type single-crystal or polycrystalline semiconductor as a temperature sensitive element. CONSTITUTION: Light emitted from.a light source 10 is introduced to a converter 14 through a optical fiber 12. Since the converter 14 is composed of an indirect transition energy gap type single-crystal or polycrystalline semiconductor and attenuates light when the temperature rises, the converter 14 works as a temperature sensitive element. The light attenuated by the converter 14 is introduced to a detector 18 through an optical fiber 16, transmits the temperature information of the converter through its brightness and darkness, and transferred by means of a circuit 20 as an electric signal.
JP8422388A 1987-04-10 1988-04-07 Method and apparatus for measuring fiber optic temperature Pending JPS6420422A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI871580A FI78353C (en) 1987-04-10 1987-04-10 FIBEROPTIC TEMPERATURMAETFOERFARANDE OCH -ANORDNING.

Publications (1)

Publication Number Publication Date
JPS6420422A true JPS6420422A (en) 1989-01-24

Family

ID=8524301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8422388A Pending JPS6420422A (en) 1987-04-10 1988-04-07 Method and apparatus for measuring fiber optic temperature

Country Status (5)

Country Link
JP (1) JPS6420422A (en)
DE (1) DE3811824A1 (en)
FI (1) FI78353C (en)
FR (1) FR2613832B1 (en)
GB (1) GB2203541B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0553675A1 (en) * 1992-01-29 1993-08-04 Siemens Aktiengesellschaft Method and device for control of the temperature of a turbine component
DE4414558C1 (en) * 1994-04-22 1995-11-09 Meyer Neontrafoproduktion Gmbh Process and arrangement for the verification of measurement accuracy and for documentation for quality assurance in the manufacture of fluorescent tube systems
GB2354701A (en) * 1999-09-28 2001-04-04 Alex Hawes Skin cream applicator
CN103134607A (en) * 2011-11-23 2013-06-05 成都酷玩网络科技有限公司 Sing-optical-path semiconductor absorption-type optical fiber temperature sensor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE418997B (en) * 1978-06-26 1981-07-06 Asea Ab FIBEROPTICAL TEMPERATURE SENSOR BASED ON THE MEASUREMENT OF THE TEMPERATURE-DEPENDENT SPECTRAL ABSORPTION FORM OF A MATERIAL
US4338516A (en) * 1980-09-12 1982-07-06 Nasa Optical crystal temperature gauge with fiber optic connections
JPS61213738A (en) * 1985-03-20 1986-09-22 Nagoyashi Optical fiber temperature measuring sensor
US4703175A (en) * 1985-08-19 1987-10-27 Tacan Corporation Fiber-optic sensor with two different wavelengths of light traveling together through the sensor head
US4790669A (en) * 1986-04-08 1988-12-13 Cv Technology, Inc. Spectroscopic method and apparatus for optically measuring temperature

Also Published As

Publication number Publication date
GB2203541A (en) 1988-10-19
GB2203541B (en) 1991-04-24
FI871580A (en) 1988-10-11
GB8808016D0 (en) 1988-05-05
FR2613832A1 (en) 1988-10-14
FR2613832B1 (en) 1991-05-10
DE3811824A1 (en) 1988-10-27
FI871580A0 (en) 1987-04-10
FI78353C (en) 1989-07-10
FI78353B (en) 1989-03-31

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