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GB2256480B - Improvements to optical sensors - Google Patents

Improvements to optical sensors

Info

Publication number
GB2256480B
GB2256480B GB9208507A GB9208507A GB2256480B GB 2256480 B GB2256480 B GB 2256480B GB 9208507 A GB9208507 A GB 9208507A GB 9208507 A GB9208507 A GB 9208507A GB 2256480 B GB2256480 B GB 2256480B
Authority
GB
United Kingdom
Prior art keywords
optical sensors
sensors
optical
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
GB9208507A
Other versions
GB2256480A (en
GB9208507D0 (en
Inventor
Jack Marcus Keen
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.)
BAE Systems Electronics Ltd
Original Assignee
GEC Marconi Ltd
Marconi 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
Priority claimed from GB919112107A external-priority patent/GB9112107D0/en
Application filed by GEC Marconi Ltd, Marconi Co Ltd filed Critical GEC Marconi Ltd
Priority to GB9208507A priority Critical patent/GB2256480B/en
Priority to CA 2069580 priority patent/CA2069580A1/en
Publication of GB9208507D0 publication Critical patent/GB9208507D0/en
Priority to FR9206794A priority patent/FR2677462B1/en
Publication of GB2256480A publication Critical patent/GB2256480A/en
Application granted granted Critical
Publication of GB2256480B publication Critical patent/GB2256480B/en
Priority to FR9700093A priority patent/FR2741458B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Communication System (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB9208507A 1991-06-05 1992-04-16 Improvements to optical sensors Expired - Fee Related GB2256480B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9208507A GB2256480B (en) 1991-06-05 1992-04-16 Improvements to optical sensors
CA 2069580 CA2069580A1 (en) 1991-06-05 1992-05-26 Optical sensors
FR9206794A FR2677462B1 (en) 1991-06-05 1992-06-04 REFLECTOMETRIC TYPE OPTICAL SENSOR.
FR9700093A FR2741458B1 (en) 1991-06-05 1997-01-08 OPTICAL REFLECTOMETRIC SENSOR

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB919112107A GB9112107D0 (en) 1991-06-05 1991-06-05 Improvements to optical sensors
GB9208507A GB2256480B (en) 1991-06-05 1992-04-16 Improvements to optical sensors

Publications (3)

Publication Number Publication Date
GB9208507D0 GB9208507D0 (en) 1992-06-03
GB2256480A GB2256480A (en) 1992-12-09
GB2256480B true GB2256480B (en) 1995-02-01

Family

ID=26299017

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9208507A Expired - Fee Related GB2256480B (en) 1991-06-05 1992-04-16 Improvements to optical sensors

Country Status (3)

Country Link
CA (1) CA2069580A1 (en)
FR (2) FR2677462B1 (en)
GB (1) GB2256480B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2256480B (en) * 1991-06-05 1995-02-01 Marconi Gec Ltd Improvements to optical sensors

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1308957A (en) * 1969-03-25 1973-03-07 Philips Electronic Associated Methods and apparatus for determining the distance of an object
GB2107079A (en) * 1981-09-24 1983-04-20 Suhl Feinmesszeugfab Veb Improvements in or relating to interferometers
GB2127960A (en) * 1982-09-29 1984-04-18 British Aerospace Ring laser gyroscope readout arrangements
WO1986000402A1 (en) * 1984-06-30 1986-01-16 Kent Scientific And Industrial Projects Limited Interferometric sensor
GB2224566A (en) * 1988-06-30 1990-05-09 British Aerospace An optical sensor for determining changes in a dimension and/or a temperature of an object

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126820B (en) * 1982-07-17 1986-03-26 Plessey Co Plc An optical sensing system
US4653915A (en) * 1985-04-12 1987-03-31 The United States Of America As Represented By The Secretary Of The Navy Method for reduction of polarization fading in interferometers
GB2199713A (en) * 1986-12-31 1988-07-13 Stc Plc Optical communication system
GB2215549B (en) * 1988-03-08 1992-02-12 Stc Plc Sensor
US4932783A (en) * 1989-07-21 1990-06-12 United States Of America As Represented By The Secretary Of The Navy Apparatus and method for minimizing polarization-induced signal fading in an interferometric fiber-optic sensor using input-polarization modulation
GB2256480B (en) * 1991-06-05 1995-02-01 Marconi Gec Ltd Improvements to optical sensors

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1308957A (en) * 1969-03-25 1973-03-07 Philips Electronic Associated Methods and apparatus for determining the distance of an object
GB2107079A (en) * 1981-09-24 1983-04-20 Suhl Feinmesszeugfab Veb Improvements in or relating to interferometers
GB2127960A (en) * 1982-09-29 1984-04-18 British Aerospace Ring laser gyroscope readout arrangements
WO1986000402A1 (en) * 1984-06-30 1986-01-16 Kent Scientific And Industrial Projects Limited Interferometric sensor
GB2224566A (en) * 1988-06-30 1990-05-09 British Aerospace An optical sensor for determining changes in a dimension and/or a temperature of an object

Also Published As

Publication number Publication date
GB2256480A (en) 1992-12-09
FR2677462B1 (en) 1997-04-04
CA2069580A1 (en) 1992-12-06
FR2677462A1 (en) 1992-12-11
FR2741458A1 (en) 1997-05-23
GB9208507D0 (en) 1992-06-03
FR2741458B1 (en) 1998-04-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990416