GB2144534B - Optical monitoring apparatus - Google Patents

Optical monitoring apparatus

Info

Publication number
GB2144534B
GB2144534B GB08416376A GB8416376A GB2144534B GB 2144534 B GB2144534 B GB 2144534B GB 08416376 A GB08416376 A GB 08416376A GB 8416376 A GB8416376 A GB 8416376A GB 2144534 B GB2144534 B GB 2144534B
Authority
GB
United Kingdom
Prior art keywords
monitoring apparatus
optical monitoring
optical
monitoring
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
Application number
GB08416376A
Other versions
GB8416376D0 (en
GB2144534A (en
Inventor
David Niall Macfadyen
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.)
Thales Optronics Ltd
Original Assignee
Thales Optronics Ltd
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 Thales Optronics Ltd filed Critical Thales Optronics Ltd
Publication of GB8416376D0 publication Critical patent/GB8416376D0/en
Publication of GB2144534A publication Critical patent/GB2144534A/en
Application granted granted Critical
Publication of GB2144534B publication Critical patent/GB2144534B/en
Expired 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
    • 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
    • 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)
  • Optical Transform (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB08416376A 1983-07-26 1984-06-27 Optical monitoring apparatus Expired GB2144534B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB838320107A GB8320107D0 (en) 1983-07-26 1983-07-26 Optical monitoring apparatus

Publications (3)

Publication Number Publication Date
GB8416376D0 GB8416376D0 (en) 1984-08-01
GB2144534A GB2144534A (en) 1985-03-06
GB2144534B true GB2144534B (en) 1987-01-07

Family

ID=10546297

Family Applications (2)

Application Number Title Priority Date Filing Date
GB838320107A Pending GB8320107D0 (en) 1983-07-26 1983-07-26 Optical monitoring apparatus
GB08416376A Expired GB2144534B (en) 1983-07-26 1984-06-27 Optical monitoring apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB838320107A Pending GB8320107D0 (en) 1983-07-26 1983-07-26 Optical monitoring apparatus

Country Status (1)

Country Link
GB (2) GB8320107D0 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8514671D0 (en) * 1985-06-11 1985-07-10 Asbury A J Optical transducer interrogation device
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
AU6215186A (en) * 1985-09-06 1987-03-12 University Of Liverpool, The Displacement measurement
FR2595820B1 (en) * 1986-03-13 1990-01-05 Bertin & Cie OPTICAL FIBER DEVICE FOR THE REMOTE DETECTION OF A PHYSICAL QUANTITY, PARTICULARLY TEMPERATURE
GB8610654D0 (en) * 1986-05-01 1986-08-20 Bicc Plc Movement detection
GB8613392D0 (en) * 1986-06-03 1986-07-09 Bicc Plc Temperature measurement
GB8706317D0 (en) * 1987-03-17 1987-04-23 Bicc Plc Optical sensor
US4859844A (en) * 1988-02-24 1989-08-22 Hughes Aircraft Company Comb filter pressure/temperature sensing system
FR2641861B1 (en) * 1989-01-18 1993-04-30 Photonetics OPTO-ELECTRONIC MEASURING DEVICE
FR2643145A1 (en) * 1989-02-14 1990-08-17 Bertin & Cie METHOD AND DEVICE FOR DETECTING AND MEASURING A PHYSICAL SIZE
JP3065435B2 (en) * 1992-07-31 2000-07-17 浜松ホトニクス株式会社 Optical fiber component characteristic measuring device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1325452A (en) * 1970-03-25 1973-08-01 Nat Res Dev Optical measuring apparatus

Also Published As

Publication number Publication date
GB8320107D0 (en) 1983-08-24
GB8416376D0 (en) 1984-08-01
GB2144534A (en) 1985-03-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee