CH529991A - Vorrichtung zum Messen der Verschiebung eines Gegenstandes - Google Patents

Vorrichtung zum Messen der Verschiebung eines Gegenstandes

Info

Publication number
CH529991A
CH529991A CH167571A CH167571A CH529991A CH 529991 A CH529991 A CH 529991A CH 167571 A CH167571 A CH 167571A CH 167571 A CH167571 A CH 167571A CH 529991 A CH529991 A CH 529991A
Authority
CH
Switzerland
Prior art keywords
displacement
measuring
Prior art date
Application number
CH167571A
Other languages
English (en)
Inventor
Lang Hendrik De
Original Assignee
Philips Nv
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 Nv filed Critical Philips Nv
Publication of CH529991A publication Critical patent/CH529991A/de

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/02Interferometers
    • G01B9/02015Interferometers characterised by the beam path configuration
    • G01B9/02017Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations
    • G01B9/02019Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations contacting different points on same face of object
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/02Interferometers
    • G01B9/02015Interferometers characterised by the beam path configuration
    • G01B9/02017Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations
    • G01B9/02018Multipass interferometers, e.g. double-pass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/02Interferometers
    • G01B9/02015Interferometers characterised by the beam path configuration
    • G01B9/02017Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations
    • G01B9/02021Interferometers characterised by the beam path configuration with multiple interactions between the target object and light beams, e.g. beam reflections occurring from different locations contacting different faces of object, e.g. opposite faces
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00Measuring instruments characterised by the use of optical techniques
    • G01B9/02Interferometers
    • G01B9/02055Reduction or prevention of errors; Testing; Calibration
    • G01B9/02056Passive reduction of errors
    • G01B9/02061Reduction or prevention of effects of tilts or misalignment
    • 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
    • G01D5/266Mechanical 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
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01BMEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/70Using polarization in the interferometer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
CH167571A 1970-02-07 1971-02-04 Vorrichtung zum Messen der Verschiebung eines Gegenstandes CH529991A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7001770A NL7001770A (de) 1970-02-07 1970-02-07

Publications (1)

Publication Number Publication Date
CH529991A true CH529991A (de) 1972-10-31

Family

ID=19809274

Family Applications (1)

Application Number Title Priority Date Filing Date
CH167571A CH529991A (de) 1970-02-07 1971-02-04 Vorrichtung zum Messen der Verschiebung eines Gegenstandes

Country Status (6)

Country Link
US (1) US3666371A (de)
CA (1) CA923694A (de)
CH (1) CH529991A (de)
DE (1) DE2104837A1 (de)
FR (1) FR2078261A5 (de)
NL (1) NL7001770A (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567006A (en) * 1979-06-22 1981-01-24 Ibm Method of extending measurement range of interference
JPS61219802A (ja) * 1985-03-27 1986-09-30 Hitachi Ltd 変位の光学的測定装置
JPS6288902A (ja) * 1985-10-16 1987-04-23 Hitachi Ltd 変位の光学的測定方法および測定装置

Also Published As

Publication number Publication date
US3666371A (en) 1972-05-30
FR2078261A5 (de) 1971-11-05
CA923694A (en) 1973-04-03
NL7001770A (de) 1971-08-10
DE2104837A1 (de) 1971-08-19

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Legal Events

Date Code Title Description
PL Patent ceased