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GB2056672B - Optical fibre sensor - Google Patents

Optical fibre sensor

Info

Publication number
GB2056672B
GB2056672B GB8025194A GB8025194A GB2056672B GB 2056672 B GB2056672 B GB 2056672B GB 8025194 A GB8025194 A GB 8025194A GB 8025194 A GB8025194 A GB 8025194A GB 2056672 B GB2056672 B GB 2056672B
Authority
GB
United Kingdom
Prior art keywords
optical fibre
fibre sensor
sensor
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
GB8025194A
Other versions
GB2056672A (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.)
GEC TRAFFIC AUTOMATION
Original Assignee
GEC TRAFFIC AUTOMATION
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 GEC TRAFFIC AUTOMATION filed Critical GEC TRAFFIC AUTOMATION
Priority to GB8025194A priority Critical patent/GB2056672B/en
Publication of GB2056672A publication Critical patent/GB2056672A/en
Application granted granted Critical
Publication of GB2056672B publication Critical patent/GB2056672B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00Indicating or recording presence, absence, or direction, of movement
    • 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 infrared, visible, or ultraviolet 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 infrared, visible, or ultraviolet 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 infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/353Mechanical 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 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
    • G01D5/35338Mechanical 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 other arrangements than interferometer arrangements
    • G01D5/35354Sensor working in reflection
    • G01D5/35367Sensor working in reflection using reflected light other than backscattered to detect the measured quantity
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G19/00Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
    • G01G19/02Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
    • G01G19/022Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing wheeled or rolling bodies in motion
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01GWEIGHING
    • G01G3/00Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/125Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing wherein the weighing element is an optical member
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01LMEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00Measuring force or stress, in general
    • G01L1/24Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet
    • G01L1/242Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre
    • G01L1/243Measuring force or stress, in general by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis using infrared, visible light, ultraviolet the material being an optical fibre using means for applying force perpendicular to the fibre axis
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/64Devices characterised by the determination of the time taken to traverse a fixed distance
    • G01P3/68Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/015Detecting movement of traffic to be counted or controlled with provision for distinguishing between two or more types of vehicles, e.g. between motor-cars and cycles
    • GPHYSICS
    • G08SIGNALLING
    • G08GTRAFFIC CONTROL SYSTEMS
    • G08G1/00Traffic control systems for road vehicles
    • G08G1/01Detecting movement of traffic to be counted or controlled
    • G08G1/04Detecting movement of traffic to be counted or controlled using optical or ultrasonic detectors
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65CLABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C2210/00Details of manually controlled or manually operable label dispensers
    • B65C2210/0037Printing equipment
    • B65C2210/004Printing equipment using printing heads
    • B65C2210/0059Printing equipment using printing heads using several printing heads

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics And Detection Of Objects (AREA)
GB8025194A 1979-08-01 1980-08-01 Optical fibre sensor Expired GB2056672B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8025194A GB2056672B (en) 1979-08-01 1980-08-01 Optical fibre sensor

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7926847 1979-08-01
GB8025194A GB2056672B (en) 1979-08-01 1980-08-01 Optical fibre sensor

Publications (2)

Publication Number Publication Date
GB2056672A GB2056672A (en) 1981-03-18
GB2056672B true GB2056672B (en) 1983-07-06

Family

ID=26272397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8025194A Expired GB2056672B (en) 1979-08-01 1980-08-01 Optical fibre sensor

Country Status (1)

Country Link
GB (1) GB2056672B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014136055A1 (en) 2013-03-04 2014-09-12 International Road Dynamics, Inc. Sensor including electrical transmission-line parameter that changes responsive to vehicular load

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61277028A (en) * 1985-05-31 1986-12-08 Sumitomo Electric Ind Ltd Sensor
FR2585849B1 (en) * 1985-07-30 1988-12-30 Suisse Electro Microtech Centr FIBER OPTIC SENSING SYSTEM INCORPORATING AN INTENSITY MODULATED SENSOR
GB2250813A (en) * 1990-12-15 1992-06-17 British Aerospace Weighing apparatus for vehicles
DE4423104A1 (en) * 1994-07-01 1996-01-04 Leon Helma Christina Pressure sensitive sensor system
AUPQ335799A0 (en) * 1999-10-12 1999-11-04 Arrb Transport Research Ltd. A method of weighing vehicles in motion and systems formed for that purpose
BR102017017613B1 (en) 2017-08-16 2023-12-26 Velsis Sistemas E Tecnologia Viaria S/A DYNAMIC WEIGHING AND VEHICLE SPEED MONITORING SYSTEM ON TRACK
BR102021004560A2 (en) * 2021-03-10 2022-09-20 Velsis Sistemas E Tecnologia Viaria Ltda WEIGHING IN MOTION SYSTEM FOR AUTOMOTIVE VEHICLES BASED ON FLEXIBLE SENSORS AND FIBER OPTICS

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014136055A1 (en) 2013-03-04 2014-09-12 International Road Dynamics, Inc. Sensor including electrical transmission-line parameter that changes responsive to vehicular load
WO2014136037A1 (en) 2013-03-04 2014-09-12 International Road Dynamics Inc. System and method for measuring moving vehicle information using electrical time domain reflectometry
US9880045B2 (en) 2013-03-04 2018-01-30 International Road Dynamics Sensor including electrical transmission-line parameter that changes responsive to vehicular load
US10006799B2 (en) 2013-03-04 2018-06-26 International Road Dynamics Inc. System and method for measuring moving vehicle information using electrical time domain reflectometry
US10876884B2 (en) 2013-03-04 2020-12-29 International Road Dynamics Inc. System and method for measuring moving vehicle information using electrical time domain reflectometry

Also Published As

Publication number Publication date
GB2056672A (en) 1981-03-18

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Legal Events

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