DE3689640T2 - Fiberoptischer Sensor. - Google Patents

Fiberoptischer Sensor.

Info

Publication number
DE3689640T2
DE3689640T2 DE3689640T DE3689640T DE3689640T2 DE 3689640 T2 DE3689640 T2 DE 3689640T2 DE 3689640 T DE3689640 T DE 3689640T DE 3689640 T DE3689640 T DE 3689640T DE 3689640 T2 DE3689640 T2 DE 3689640T2
Authority
DE
Germany
Prior art keywords
fiber
prescribed frequency
sensing head
light
semiconductor material
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.)
Expired - Fee Related
Application number
DE3689640T
Other languages
English (en)
Other versions
DE3689640D1 (de
Inventor
Michael M Salour
Gerhard Schoner
James H Bechtel
Martin Kull
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.)
TACAN AEROSPACE CORP
Original Assignee
TACAN AEROSPACE 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 TACAN AEROSPACE CORP filed Critical TACAN AEROSPACE CORP
Application granted granted Critical
Publication of DE3689640D1 publication Critical patent/DE3689640D1/de
Publication of DE3689640T2 publication Critical patent/DE3689640T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • G01D5/268—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 using optical fibres
    • 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

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Glass Compositions (AREA)
  • Gas-Insulated Switchgears (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Testing Or Calibration Of Command Recording Devices (AREA)
  • Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)
  • Cable Accessories (AREA)
DE3689640T 1985-08-19 1986-08-13 Fiberoptischer Sensor. Expired - Fee Related DE3689640T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/767,037 US4703175A (en) 1985-08-19 1985-08-19 Fiber-optic sensor with two different wavelengths of light traveling together through the sensor head

Publications (2)

Publication Number Publication Date
DE3689640D1 DE3689640D1 (de) 1994-03-24
DE3689640T2 true DE3689640T2 (de) 1994-05-19

Family

ID=25078308

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3689640T Expired - Fee Related DE3689640T2 (de) 1985-08-19 1986-08-13 Fiberoptischer Sensor.

Country Status (7)

Country Link
US (1) US4703175A (de)
EP (1) EP0214040B1 (de)
JP (1) JPS6298218A (de)
AT (1) ATE101715T1 (de)
AU (1) AU594693B2 (de)
CA (1) CA1297702C (de)
DE (1) DE3689640T2 (de)

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US9388686B2 (en) 2010-01-13 2016-07-12 Halliburton Energy Services, Inc. Maximizing hydrocarbon production while controlling phase behavior or precipitation of reservoir impairing liquids or solids
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CN105264355B (zh) * 2013-05-21 2018-10-30 圣瑞克斯公司 流体诊断设备及其使用方法
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Also Published As

Publication number Publication date
CA1297702C (en) 1992-03-24
US4703175A (en) 1987-10-27
AU594693B2 (en) 1990-03-15
JPS6298218A (ja) 1987-05-07
AU6069586A (en) 1987-02-26
EP0214040A3 (en) 1988-10-05
DE3689640D1 (de) 1994-03-24
EP0214040B1 (de) 1994-02-16
EP0214040A2 (de) 1987-03-11
ATE101715T1 (de) 1994-03-15

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Legal Events

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8339 Ceased/non-payment of the annual fee