GB906101A - Improvements in or relating to devices for measuring displacements - Google Patents

Improvements in or relating to devices for measuring displacements

Info

Publication number
GB906101A
GB906101A GB1885/59A GB188559A GB906101A GB 906101 A GB906101 A GB 906101A GB 1885/59 A GB1885/59 A GB 1885/59A GB 188559 A GB188559 A GB 188559A GB 906101 A GB906101 A GB 906101A
Authority
GB
United Kingdom
Prior art keywords
grating
mirror
lens
employed
image
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
GB1885/59A
Other languages
English (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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries Ltd filed Critical Philips Electrical Industries Ltd
Publication of GB906101A publication Critical patent/GB906101A/en
Expired legal-status Critical Current

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
    • G01D5/32—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 with attenuation or whole or partial obturation of beams of light
    • G01D5/34—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 with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/36—Forming the light into pulses
    • G01D5/38—Forming the light into pulses by diffraction gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
    • G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
    • G01B21/06—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving
    • G01B21/065—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness specially adapted for measuring length or width of objects while moving for stretchable materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
GB1885/59A 1958-01-21 1959-01-19 Improvements in or relating to devices for measuring displacements Expired GB906101A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL224249 1958-01-21

Publications (1)

Publication Number Publication Date
GB906101A true GB906101A (en) 1962-09-19

Family

ID=19751104

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1885/59A Expired GB906101A (en) 1958-01-21 1959-01-19 Improvements in or relating to devices for measuring displacements

Country Status (3)

Country Link
US (1) US3245307A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB906101A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL224249A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1773428B1 (de) * 1968-05-14 1971-03-18 Rolls Royce Vorrichtung zur bestimmung der lage eines beweglichen bau teils relativ zu einem festen bezugssystem
GB2185314A (en) * 1986-01-14 1987-07-15 Canon Kk Encoder
US4930895A (en) * 1987-06-15 1990-06-05 Canon Kabushiki Kaisha Encoder for forming interference fringes by re-diffracted lights from an optical type scale and photoelectrically converting the interference fringes to thereby detect the displacement of the scale

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3398287A (en) * 1965-02-15 1968-08-20 Boeing Co Radiation sensitive geophysical strain measuring apparatus
JPS4527426B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1966-08-26 1970-09-08
US3658429A (en) * 1970-05-11 1972-04-25 Bendix Corp Displacement measuring apparatus
US3715524A (en) * 1972-04-20 1973-02-06 Zenith Radio Corp Electro-optical groove tracking apparatus for video reproducing system
US3813166A (en) * 1973-03-07 1974-05-28 Us Army Optical displacement indicator
DE2451668A1 (de) * 1974-10-31 1976-05-06 Leitz Ernst Gmbh Anordnung zur geometrischen trennung von lichtfluessen in abbildungssystemen
JPS5289361A (en) * 1976-01-21 1977-07-26 Fuji Photo Optical Co Ltd Oscillation measuring device for body
US4385830A (en) * 1980-11-26 1983-05-31 Cornell Research Foundation, Inc. Direct measurement of vorticity by optical probe
IL66383A (en) * 1982-07-23 1988-04-29 Israel Atomic Energy Comm Optical level
JPS63228421A (ja) * 1987-03-17 1988-09-22 Minolta Camera Co Ltd 自動合焦装置
US4988886A (en) * 1989-04-06 1991-01-29 Eastman Kodak Company Moire distance measurement method and apparatus
US5075562A (en) * 1990-09-20 1991-12-24 Eastman Kodak Company Method and apparatus for absolute Moire distance measurements using a grating printed on or attached to a surface
US5075560A (en) * 1990-09-20 1991-12-24 Eastman Kodak Company Moire distance measurements using a grating printed on or attached to a surface
US5069549A (en) * 1990-11-02 1991-12-03 Industrial Technology Institute Moire contouring camera
JP2862417B2 (ja) * 1990-11-16 1999-03-03 キヤノン株式会社 変位測定装置及び方法
EP0486050B1 (en) * 1990-11-16 1998-02-04 Canon Kabushiki Kaisha Method and apparatus for measuring displacement
US5636025A (en) * 1992-04-23 1997-06-03 Medar, Inc. System for optically measuring the surface contour of a part using more fringe techniques
US5515730A (en) * 1992-11-23 1996-05-14 British Aerospace Plc Apparatus for detecting the amplitude, frequency or modes of vibration of a vibrating panel
FR2707000A1 (en) * 1993-06-21 1994-12-30 Bertin & Cie Method and device for measuring angles by reflectometry
US6675121B1 (en) * 1999-07-06 2004-01-06 Larry C. Hardin Velocity measuring system
US20070162248A1 (en) * 1999-07-06 2007-07-12 Hardin Larry C Optical system for detecting intruders
DE102011012611B4 (de) * 2011-02-28 2014-03-27 Trioptics Gmbh Verfahren und Vorrichtung zur berührungslosen Messung eines Winkels
KR101539945B1 (ko) * 2014-05-02 2015-07-30 에스엔유 프리시젼 주식회사 간섭계를 이용한 진동측정방법

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE417231C (de) * 1925-08-10 Leon Lenouvel Verfahren und Vorrichtung zur Pruefung optischer Systeme, welche bei unendlicher Gegenstandsweite reelle Bilder hervorbringen
GB482262A (en) * 1936-09-24 1938-03-24 Kapella Ltd Improvements in optical scale-reading apparatus
US2312888A (en) * 1941-05-31 1943-03-02 Gen Electric Magnetostriction measuring apparatus
US2562181A (en) * 1948-11-05 1951-07-31 Joseph C Frommer Method and means for detecting cloudiness of transparent material
CH315921A (de) * 1952-09-09 1956-09-15 Mullard Radio Valve Co Ltd Einrichtung zur Einstellung eines beweglichen Körpers
US2886717A (en) * 1953-03-14 1959-05-12 Ferranti Ltd Measuring apparatus
GB782831A (en) * 1954-07-08 1957-09-11 Ass Elect Ind Improvements relating to apparatus for measuring small movements
US2857802A (en) * 1954-09-07 1958-10-28 Emi Ltd Displacement measuring device using the light pattern from optical gratings
GB787641A (en) * 1954-09-11 1957-12-11 Emi Ltd Improvements relating to displacement measuring devices
US2886718A (en) * 1955-05-31 1959-05-12 Ferranti Ltd Measuring apparatus

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1773428B1 (de) * 1968-05-14 1971-03-18 Rolls Royce Vorrichtung zur bestimmung der lage eines beweglichen bau teils relativ zu einem festen bezugssystem
GB2185314A (en) * 1986-01-14 1987-07-15 Canon Kk Encoder
GB2185314B (en) * 1986-01-14 1990-09-26 Canon Kk Encoder
US5036192A (en) * 1986-01-14 1991-07-30 Canon Kabushiki Kaisha Rotary encoder using reflected light
US4930895A (en) * 1987-06-15 1990-06-05 Canon Kabushiki Kaisha Encoder for forming interference fringes by re-diffracted lights from an optical type scale and photoelectrically converting the interference fringes to thereby detect the displacement of the scale

Also Published As

Publication number Publication date
NL224249A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
US3245307A (en) 1966-04-12

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