GB2161925B - Fibre optic sensor - Google Patents

Fibre optic sensor

Info

Publication number
GB2161925B
GB2161925B GB08418630A GB8418630A GB2161925B GB 2161925 B GB2161925 B GB 2161925B GB 08418630 A GB08418630 A GB 08418630A GB 8418630 A GB8418630 A GB 8418630A GB 2161925 B GB2161925 B GB 2161925B
Authority
GB
United Kingdom
Prior art keywords
fibre optic
optic sensor
sensor
fibre
optic
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
GB08418630A
Other versions
GB8418630D0 (en
GB2161925A (en
Inventor
Roger Edward Jones
Roland Henry Pratt
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.)
STC PLC
Original Assignee
STC 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
Application filed by STC PLC filed Critical STC PLC
Priority to GB08418630A priority Critical patent/GB2161925B/en
Publication of GB8418630D0 publication Critical patent/GB8418630D0/en
Publication of GB2161925A publication Critical patent/GB2161925A/en
Application granted granted Critical
Publication of GB2161925B publication Critical patent/GB2161925B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference
    • G02F1/225—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference in an optical waveguide structure
    • G02F1/2252—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference in an optical waveguide structure in 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
    • G01D5/353—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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)
GB08418630A 1984-07-20 1984-07-20 Fibre optic sensor Expired GB2161925B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08418630A GB2161925B (en) 1984-07-20 1984-07-20 Fibre optic sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08418630A GB2161925B (en) 1984-07-20 1984-07-20 Fibre optic sensor

Publications (3)

Publication Number Publication Date
GB8418630D0 GB8418630D0 (en) 1984-08-22
GB2161925A GB2161925A (en) 1986-01-22
GB2161925B true GB2161925B (en) 1988-03-02

Family

ID=10564243

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08418630A Expired GB2161925B (en) 1984-07-20 1984-07-20 Fibre optic sensor

Country Status (1)

Country Link
GB (1) GB2161925B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988008998A1 (en) * 1987-05-04 1988-11-17 Eastman Kodak Company Improvements in or relating to light beam modulation
FR2643730B1 (en) * 1989-02-24 1991-09-20 Bertin & Cie OPTO-ELECTRONIC DEVICE WITH SPECTRAL LIGHT CODING, AND ITS APPLICATIONS

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1168971A (en) * 1966-07-08 1969-10-29 Melvin Seymour Cook Improvements in or relating to Optical Measurement of Length
GB2086572B (en) * 1980-10-27 1984-05-10 Rosemount Eng Co Ltd Differential pressure measuring apparatus

Also Published As

Publication number Publication date
GB8418630D0 (en) 1984-08-22
GB2161925A (en) 1986-01-22

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Legal Events

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