GB8720526D0 - Optical sensing systems - Google Patents

Optical sensing systems

Info

Publication number
GB8720526D0
GB8720526D0 GB8720526A GB8720526A GB8720526D0 GB 8720526 D0 GB8720526 D0 GB 8720526D0 GB 8720526 A GB8720526 A GB 8720526A GB 8720526 A GB8720526 A GB 8720526A GB 8720526 D0 GB8720526 D0 GB 8720526D0
Authority
GB
Grant status
Grant
Patent type
Prior art keywords
optical
sensing
systems
optical sensing
sensing systems
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.)
Withdrawn
Application number
GB8720526A
Other versions
GB2209212A (en )
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 PLC
Original Assignee
Plessey Co PLC
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
Grant date

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING 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
    • G01D5/00Mechanical 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
    • G01D5/26Mechanical 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 infra-red, visible, or ultra-violet light
    • G01D5/32Mechanical 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 infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34Mechanical 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 infra-red, visible, or ultra-violet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353Mechanical 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 infra-red, visible, or ultra-violet 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
    • G01D5/35383Mechanical 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 infra-red, visible, or ultra-violet 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 multiple sensor devices using multiplexing techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/264Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
GB8720526A 1987-09-01 1987-09-01 Optical sensing systems Withdrawn GB8720526D0 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8720526A GB8720526D0 (en) 1987-09-01 1987-09-01 Optical sensing systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8720526A GB8720526D0 (en) 1987-09-01 1987-09-01 Optical sensing systems
PCT/GB1988/000681 WO1989002067A1 (en) 1987-09-01 1988-08-17 Improvements relating to optical sensing systems

Publications (2)

Publication Number Publication Date
GB8720526D0 true GB8720526D0 (en) 1987-10-07
GB2209212A true GB2209212A (en) 1989-05-04

Family

ID=10623100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8720526A Withdrawn GB8720526D0 (en) 1987-09-01 1987-09-01 Optical sensing systems

Country Status (2)

Country Link
GB (1) GB8720526D0 (en)
WO (1) WO1989002067A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9127358D0 (en) * 1991-12-24 1992-02-19 Marconi Gec Ltd Optical fibre sensor array
EP0713077B1 (en) * 1994-11-17 1999-12-15 Alcatel Detection and/or measurement procedure for physical entities using a distributed sensor
US5557400A (en) * 1995-02-15 1996-09-17 Hewlett-Packard Company Multiplexed sensing using optical coherence reflectrometry
GB0302434D0 (en) * 2003-02-03 2003-03-05 Sensor Highway Ltd Interferometric method and apparatus for measuring physical parameters
CN101995227B (en) * 2010-09-29 2012-06-06 哈尔滨工程大学 Optical path autocorrelator for distributed optical fiber strain sensing measurement
GB201503861D0 (en) * 2015-03-06 2015-04-22 Silixa Ltd Method and apparatus for optical sensing

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8311256D0 (en) * 1983-04-26 1983-06-02 Central Electr Generat Board Measuring external parameter
DE3525314A1 (en) * 1985-07-16 1987-01-22 Hdw Elektronik Gmbh Measuring device for detecting measured quantities by means of optical sensors

Also Published As

Publication number Publication date Type
GB2209212A (en) 1989-05-04 application
WO1989002067A1 (en) 1989-03-09 application

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)