AU8877198A - Optical sensing - Google Patents

Optical sensing

Info

Publication number
AU8877198A
AU8877198A AU88771/98A AU8877198A AU8877198A AU 8877198 A AU8877198 A AU 8877198A AU 88771/98 A AU88771/98 A AU 88771/98A AU 8877198 A AU8877198 A AU 8877198A AU 8877198 A AU8877198 A AU 8877198A
Authority
AU
Australia
Prior art keywords
optical sensing
sensing
optical
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.)
Abandoned
Application number
AU88771/98A
Inventor
Roger Phillip Griffiths
Ian Hugh White
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.)
Rdp Electronics Ltd
Original Assignee
R D P ELECTRONICS Ltd
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 R D P ELECTRONICS Ltd filed Critical R D P ELECTRONICS Ltd
Publication of AU8877198A publication Critical patent/AU8877198A/en
Abandoned legal-status Critical Current

Links

Classifications

    • 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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/2441—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using interferometry
    • 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
    • G01D5/266—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 by interferometric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
AU88771/98A 1997-09-01 1998-09-01 Optical sensing Abandoned AU8877198A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9718513 1997-09-01
GB9718513A GB2328739A (en) 1997-09-01 1997-09-01 Optical sensing
PCT/GB1998/002622 WO1999012004A1 (en) 1997-09-01 1998-09-01 Optical sensing

Publications (1)

Publication Number Publication Date
AU8877198A true AU8877198A (en) 1999-03-22

Family

ID=10818353

Family Applications (1)

Application Number Title Priority Date Filing Date
AU88771/98A Abandoned AU8877198A (en) 1997-09-01 1998-09-01 Optical sensing

Country Status (3)

Country Link
AU (1) AU8877198A (en)
GB (1) GB2328739A (en)
WO (1) WO1999012004A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR631801A0 (en) * 2001-07-12 2001-08-02 Luscombe, Andrew Roadside sensor system
US7317513B2 (en) * 2004-07-15 2008-01-08 Mitutoyo Corporation Absolute distance measuring device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4452533A (en) * 1981-07-22 1984-06-05 The United States Of America As Represented By The Secretary Of The Navy External cavity diode laser sensor
US5135307A (en) * 1990-05-30 1992-08-04 Hughes Danbury Optical System, Inc. Laser diode interferometer
US5956355A (en) * 1991-04-29 1999-09-21 Massachusetts Institute Of Technology Method and apparatus for performing optical measurements using a rapidly frequency-tuned laser
US5283625A (en) * 1991-08-19 1994-02-01 Litton Systems, Inc. Interferometer phase modulation controller apparatus using ratios of two pairs of harmonic signals

Also Published As

Publication number Publication date
WO1999012004A1 (en) 1999-03-11
GB9718513D0 (en) 1997-11-05
GB2328739A (en) 1999-03-03

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase