SE8403651D0 - FIBEROPTICAL METHOD SYSTEM - Google Patents

FIBEROPTICAL METHOD SYSTEM

Info

Publication number
SE8403651D0
SE8403651D0 SE8403651A SE8403651A SE8403651D0 SE 8403651 D0 SE8403651 D0 SE 8403651D0 SE 8403651 A SE8403651 A SE 8403651A SE 8403651 A SE8403651 A SE 8403651A SE 8403651 D0 SE8403651 D0 SE 8403651D0
Authority
SE
Sweden
Prior art keywords
light
sensor
fibre
designed
optic
Prior art date
Application number
SE8403651A
Other languages
Swedish (sv)
Other versions
SE446772B (en
SE8403651L (en
Inventor
B Hok
L Jonsson
Original Assignee
Asea Ab
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 Asea Ab filed Critical Asea Ab
Priority to SE8403651A priority Critical patent/SE446772B/en
Publication of SE8403651D0 publication Critical patent/SE8403651D0/en
Publication of SE8403651L publication Critical patent/SE8403651L/en
Publication of SE446772B publication Critical patent/SE446772B/en

Links

Classifications

    • 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)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The invention is a fibre-optic device for measuring physical or chemical quantities with at least one light source (1, 2) which is designed to emit light in at least two separable wavelength ranges in optical connection to a sensor (11), whose spectral properties concerning reflection or transmission are arranged to be changed by the measurement quantities. The device is unique in that information on the measurement quantity is available distinctly from detected intensities in light reflected or transmitted from the sensor in at least two of the said wavelength ranges, and that the device is designed to receive light originating from photoluminescence from a photoluminescent material (25) built into the sensor (11), which partly luminesces, partly reflects or transmits incident light. The intensity from the received light is intended to compensate the device for optic deficits in fibre seams or the like with the help of circuits (28, 31, 30, 20, 21).<IMAGE>
SE8403651A 1984-07-10 1984-07-10 Fibre-optic measuring device SE446772B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8403651A SE446772B (en) 1984-07-10 1984-07-10 Fibre-optic measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8403651A SE446772B (en) 1984-07-10 1984-07-10 Fibre-optic measuring device

Publications (3)

Publication Number Publication Date
SE8403651D0 true SE8403651D0 (en) 1984-07-10
SE8403651L SE8403651L (en) 1986-01-11
SE446772B SE446772B (en) 1986-10-06

Family

ID=20356498

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8403651A SE446772B (en) 1984-07-10 1984-07-10 Fibre-optic measuring device

Country Status (1)

Country Link
SE (1) SE446772B (en)

Also Published As

Publication number Publication date
SE446772B (en) 1986-10-06
SE8403651L (en) 1986-01-11

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