SE8600434L - FIBEROPTIC PRESSURE SENSOR - Google Patents

FIBEROPTIC PRESSURE SENSOR

Info

Publication number
SE8600434L
SE8600434L SE8600434A SE8600434A SE8600434L SE 8600434 L SE8600434 L SE 8600434L SE 8600434 A SE8600434 A SE 8600434A SE 8600434 A SE8600434 A SE 8600434A SE 8600434 L SE8600434 L SE 8600434L
Authority
SE
Sweden
Prior art keywords
optical fiber
coating layer
pressure
pressure sensor
comprised
Prior art date
Application number
SE8600434A
Other languages
Unknown language ( )
Swedish (sv)
Other versions
SE454298B (en
SE8600434D0 (en
Inventor
R E Jaeger
M Aslami
Original Assignee
Spectran Corp
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 Spectran Corp filed Critical Spectran Corp
Publication of SE8600434D0 publication Critical patent/SE8600434D0/en
Publication of SE8600434L publication Critical patent/SE8600434L/en
Publication of SE454298B publication Critical patent/SE454298B/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/24—Measuring 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
    • G01L1/242—Measuring 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
    • G01L1/243—Measuring 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
    • G01L1/245—Measuring 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 using microbending
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
    • G01L11/02—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means
    • G01L11/025—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00 by optical means using a pressure-sensitive optical fibre

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

An arrangement for an optical fiber pressure sensor is comprised of two coating layers (15,17) concentrically clad to and coaxially oriented with an optical fiber (11,13). The first coating layer (15) is comprises of a relatively hard optically lossy material which absorbs any light radiating outwardly from the optical fiber (11,13). The second coating layer (17) is comprised of a compliant material in which granular particles have been uniformly dispersed. In response to any pressure laterally applied to the sensor, the compliant coating layer (7) imparts micro-bends, onto the optical fiber (11,13), which, in turn, couple light from propagating modes to non-propagating modes. As a result, the amplitude (or power) of the light exiting the optical fiber (11,13) advantageously decreases in response to this pressure. <IMAGE>
SE8600434A 1986-02-03 1986-01-31 OPTICAL FIBER PRINTER WITH AN OPTIC TRANSMISSIBLE FIBER AND AN ARRANGEMENT FOR A PRESSURE DETECTOR INCLUDING THE OPTICAL FIBER PRINTER SE454298B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8601458A FR2593913B1 (en) 1986-02-03 1986-02-03 FIBER OPTIC PRESSURE SENSOR AND DETECTION APPARATUS COMPRISING SAME

Publications (3)

Publication Number Publication Date
SE8600434D0 SE8600434D0 (en) 1986-01-31
SE8600434L true SE8600434L (en) 1987-08-01
SE454298B SE454298B (en) 1988-04-18

Family

ID=9331748

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8600434A SE454298B (en) 1986-02-03 1986-01-31 OPTICAL FIBER PRINTER WITH AN OPTIC TRANSMISSIBLE FIBER AND AN ARRANGEMENT FOR A PRESSURE DETECTOR INCLUDING THE OPTICAL FIBER PRINTER

Country Status (4)

Country Link
DE (1) DE3603934A1 (en)
FR (1) FR2593913B1 (en)
GB (1) GB2186073B (en)
SE (1) SE454298B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4918305A (en) * 1988-08-01 1990-04-17 General Motors Corporation Fiber optic pressure sensor using pressure sensitive fiber different from input and output fibers
GB2208711A (en) * 1988-08-16 1989-04-12 Plessey Co Plc Fibre optic sensor
GB2223841A (en) * 1988-08-31 1990-04-18 Red Kite Tech Parameter measurement using refractive index change
DE19624494A1 (en) * 1996-06-19 1998-01-02 Sick Ag Extremely rugged inductive or optical sensor unit resisting vibration and shock
US6801700B2 (en) * 2001-05-10 2004-10-05 Fitel Usa Corp Optical fiber design for secure tap proof transmission
DE10205594A1 (en) 2002-02-11 2003-08-28 Leoni Bordnetz Sys Gmbh & Co Pressure sensor with an optical fiber
GB0620339D0 (en) * 2006-10-12 2006-11-22 Insensys Ltd Pressure rod
EP3321648B1 (en) * 2010-06-17 2021-04-21 Weatherford Technology Holdings, LLC Fiber optic cable for distributed acoustic sensing with increased acoustic sensitivity

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342907A (en) * 1977-12-12 1982-08-03 Pedro B. Macedo Optical sensing apparatus and method
DE8304203U1 (en) * 1983-02-16 1984-08-09 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Tensile wire with included fiber optic sensor
DE3305234C2 (en) * 1983-02-16 1986-02-27 Felten & Guilleaume Energietechnik GmbH, 5000 Köln Tensile wire made from a fiber-reinforced resin structure with at least one optical waveguide enclosed therein
US4701614A (en) * 1984-06-25 1987-10-20 Spectran Corporation Fiber optic pressure sensor
DE3443949A1 (en) * 1984-12-01 1986-06-05 AEG KABEL AG, 4050 Mönchengladbach Light guide as force sensor

Also Published As

Publication number Publication date
DE3603934A1 (en) 1987-08-13
GB8602465D0 (en) 1986-03-05
SE454298B (en) 1988-04-18
GB2186073A (en) 1987-08-05
GB2186073B (en) 1989-10-25
FR2593913A1 (en) 1987-08-07
FR2593913B1 (en) 1993-01-22
SE8600434D0 (en) 1986-01-31

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