GB2172101B - Improvements relating to optical sensing systems - Google Patents

Improvements relating to optical sensing systems

Info

Publication number
GB2172101B
GB2172101B GB08505616A GB8505616A GB2172101B GB 2172101 B GB2172101 B GB 2172101B GB 08505616 A GB08505616 A GB 08505616A GB 8505616 A GB8505616 A GB 8505616A GB 2172101 B GB2172101 B GB 2172101B
Authority
GB
United Kingdom
Prior art keywords
optical sensing
improvements relating
sensing systems
systems
relating
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
GB08505616A
Other versions
GB8505616D0 (en
GB2172101A (en
Inventor
Dr John Philip Dakin
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.)
Plessey Co Ltd
Original Assignee
Plessey Co 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 Plessey Co Ltd filed Critical Plessey Co Ltd
Priority to GB08505616A priority Critical patent/GB2172101B/en
Publication of GB8505616D0 publication Critical patent/GB8505616D0/en
Publication of GB2172101A publication Critical patent/GB2172101A/en
Application granted granted Critical
Publication of GB2172101B publication Critical patent/GB2172101B/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
    • G01D5/32—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
    • G01D5/353—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 influencing the transmission properties of an optical fibre
    • G01D5/35303—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 influencing the transmission properties of an optical fibre using a reference fibre, e.g. interferometric devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
GB08505616A 1985-03-05 1985-03-05 Improvements relating to optical sensing systems Expired GB2172101B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08505616A GB2172101B (en) 1985-03-05 1985-03-05 Improvements relating to optical sensing systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08505616A GB2172101B (en) 1985-03-05 1985-03-05 Improvements relating to optical sensing systems

Publications (3)

Publication Number Publication Date
GB8505616D0 GB8505616D0 (en) 1985-04-03
GB2172101A GB2172101A (en) 1986-09-10
GB2172101B true GB2172101B (en) 1988-08-17

Family

ID=10575451

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08505616A Expired GB2172101B (en) 1985-03-05 1985-03-05 Improvements relating to optical sensing systems

Country Status (1)

Country Link
GB (1) GB2172101B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238112B (en) * 1986-11-11 1991-10-09 British Aerospace Measurement of distortion
US5038618A (en) * 1986-11-11 1991-08-13 British Aerospace Public Limited Company Measurement of distortion
GB8711108D0 (en) * 1987-05-11 1987-09-09 Marconi Co Ltd Signal processing device
GB9204067D0 (en) * 1992-02-26 1992-04-08 Sensor Dynamics Ltd Optical fibre sensor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334781A (en) * 1979-06-08 1982-06-15 Tokyo Shibaura Denki Kabushiki Kaisha Optical sensing system
DE3371561D1 (en) * 1982-08-26 1987-06-19 Shell Int Research A method and apparatus for tank gauging using diode lasers and optical fibres
GB2147695B (en) * 1983-10-05 1987-03-18 Standard Telephones Cables Ltd Balancing interferometer sensor

Also Published As

Publication number Publication date
GB8505616D0 (en) 1985-04-03
GB2172101A (en) 1986-09-10

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee