GB2204204B - Improvements relating to optical detection systems - Google Patents

Improvements relating to optical detection systems

Info

Publication number
GB2204204B
GB2204204B GB8700049A GB8700049A GB2204204B GB 2204204 B GB2204204 B GB 2204204B GB 8700049 A GB8700049 A GB 8700049A GB 8700049 A GB8700049 A GB 8700049A GB 2204204 B GB2204204 B GB 2204204B
Authority
GB
United Kingdom
Prior art keywords
optical detection
detection systems
improvements relating
relating
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.)
Expired - Fee Related
Application number
GB8700049A
Other versions
GB8700049D0 (en
GB2204204A (en
Inventor
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 GB8700049A priority Critical patent/GB2204204B/en
Publication of GB8700049D0 publication Critical patent/GB8700049D0/en
Publication of GB2204204A publication Critical patent/GB2204204A/en
Application granted granted Critical
Publication of GB2204204B publication Critical patent/GB2204204B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/33—Testing of optical devices, constituted by fibre optics or optical waveguides with a light emitter being disposed at one fibre or waveguide end-face, and a light receiver at the other end-face
    • 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
    • G01D5/35383—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 multiple sensor devices using multiplexing techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G01M11/39—Testing of optical devices, constituted by fibre optics or optical waveguides in which light is projected from both sides of the fiber or waveguide end-face
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G01S7/4818—Constructional features, e.g. arrangements of optical elements using optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Optical Transform (AREA)
GB8700049A 1987-01-03 1987-01-03 Improvements relating to optical detection systems Expired - Fee Related GB2204204B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8700049A GB2204204B (en) 1987-01-03 1987-01-03 Improvements relating to optical detection systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8700049A GB2204204B (en) 1987-01-03 1987-01-03 Improvements relating to optical detection systems

Publications (3)

Publication Number Publication Date
GB8700049D0 GB8700049D0 (en) 1987-02-11
GB2204204A GB2204204A (en) 1988-11-02
GB2204204B true GB2204204B (en) 1990-10-31

Family

ID=10610235

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8700049A Expired - Fee Related GB2204204B (en) 1987-01-03 1987-01-03 Improvements relating to optical detection systems

Country Status (1)

Country Link
GB (1) GB2204204B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1151279A4 (en) * 1998-12-18 2007-12-05 Future Fibre Tech Pty Ltd Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
WO2000037925A1 (en) * 1998-12-18 2000-06-29 Future Fibre Technologies Pty Ltd Apparatus and method for monitoring a structure using a counter-propagating signal method for locating events
US8395782B2 (en) 2004-06-15 2013-03-12 Optellios, Inc. Detection and location of boundary intrusion, using composite variables derived from phase measurements
AU2005257770B2 (en) 2004-06-15 2010-03-04 Optellios, Inc. Phase responsive optical fiber sensor
US7499176B2 (en) 2007-02-13 2009-03-03 Future Fibre Technologies Pty Ltd Apparatus and method for using a counter-propagating signal method for locating events
CA2593628C (en) 2005-01-11 2015-06-16 Future Fibre Technologies Pty Ltd Apparatus and method for using a counter-propagating signal method for locating events
CN101441129B (en) * 2008-12-25 2010-06-09 哈尔滨工程大学 Optical fiber ring performance measuring and evaluating system based on temperature experiment
CN106643838A (en) * 2016-12-01 2017-05-10 北京航天控制仪器研究所 Bumping position measuring system and method based on bidirectional detection of fiber ring
WO2020033001A2 (en) * 2018-02-13 2020-02-13 Sense Photonics, Inc. Methods and systems for high-resolution long-range flash lidar

Also Published As

Publication number Publication date
GB8700049D0 (en) 1987-02-11
GB2204204A (en) 1988-11-02

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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

Effective date: 19930103