GB2173894B - Optical fibre sensors - Google Patents

Optical fibre sensors

Info

Publication number
GB2173894B
GB2173894B GB08509989A GB8509989A GB2173894B GB 2173894 B GB2173894 B GB 2173894B GB 08509989 A GB08509989 A GB 08509989A GB 8509989 A GB8509989 A GB 8509989A GB 2173894 B GB2173894 B GB 2173894B
Authority
GB
United Kingdom
Prior art keywords
optical fibre
fibre sensors
sensors
optical
fibre
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
GB08509989A
Other versions
GB8509989D0 (en
GB2173894A (en
Inventor
Kevin Christopher Byron
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 GB08509989A priority Critical patent/GB2173894B/en
Publication of GB8509989D0 publication Critical patent/GB8509989D0/en
Publication of GB2173894A publication Critical patent/GB2173894A/en
Application granted granted Critical
Publication of GB2173894B publication Critical patent/GB2173894B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • 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
    • G01D5/268—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 using optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Fuel Cell (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
GB08509989A 1985-04-18 1985-04-18 Optical fibre sensors Expired GB2173894B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08509989A GB2173894B (en) 1985-04-18 1985-04-18 Optical fibre sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08509989A GB2173894B (en) 1985-04-18 1985-04-18 Optical fibre sensors

Publications (3)

Publication Number Publication Date
GB8509989D0 GB8509989D0 (en) 1985-05-30
GB2173894A GB2173894A (en) 1986-10-22
GB2173894B true GB2173894B (en) 1988-12-21

Family

ID=10577873

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08509989A Expired GB2173894B (en) 1985-04-18 1985-04-18 Optical fibre sensors

Country Status (1)

Country Link
GB (1) GB2173894B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5303586A (en) * 1993-01-22 1994-04-19 Wayne State University Pressure or fluid level sensor
US5796472A (en) * 1996-09-10 1998-08-18 Wirthlin; Alvin R. Optical translucency indicator for measurement of air filter dirtiness, liquid level, thickness, and other parameters
US6872933B2 (en) 1998-07-15 2005-03-29 Alvin R. Wirthlin Optical transducer
US6246049B1 (en) 1999-06-12 2001-06-12 Alvin R. Wirthlin Optical transducer
US6333512B1 (en) 1998-07-15 2001-12-25 Alvin R. Wirthlin Optical gauge for determining the level of a medium in a container

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2062877B (en) * 1979-11-15 1984-03-07 Avon Rubber Co Ltd Method and device for detecting leaks from pipelines
DE3144541C2 (en) * 1981-11-10 1984-05-24 Wolfram 8501 Allersberg Henning Rod-like device for detecting the level of liquids in containers, channels or the like.
DE3234900A1 (en) * 1982-09-21 1984-03-22 Siemens Ag FIBER OPTICAL SENSOR

Also Published As

Publication number Publication date
GB8509989D0 (en) 1985-05-30
GB2173894A (en) 1986-10-22

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Legal Events

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