CA945360A - Moire fringe device and method of determining displacements using moire fringes - Google Patents

Moire fringe device and method of determining displacements using moire fringes

Info

Publication number
CA945360A
CA945360A CA109,480A CA109480A CA945360A CA 945360 A CA945360 A CA 945360A CA 109480 A CA109480 A CA 109480A CA 945360 A CA945360 A CA 945360A
Authority
CA
Canada
Prior art keywords
moire
fringe device
determining displacements
fringes
moire fringes
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
CA109,480A
Other versions
CA109480S (en
Inventor
Richard N. Roney
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.)
Bendix Corp
Original Assignee
Bendix 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 Bendix Corp filed Critical Bendix Corp
Application granted granted Critical
Publication of CA945360A publication Critical patent/CA945360A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
CA109,480A 1970-06-02 1971-04-02 Moire fringe device and method of determining displacements using moire fringes Expired CA945360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4265270A 1970-06-02 1970-06-02

Publications (1)

Publication Number Publication Date
CA945360A true CA945360A (en) 1974-04-16

Family

ID=21923060

Family Applications (1)

Application Number Title Priority Date Filing Date
CA109,480A Expired CA945360A (en) 1970-06-02 1971-04-02 Moire fringe device and method of determining displacements using moire fringes

Country Status (3)

Country Link
CA (1) CA945360A (en)
DE (1) DE2126774A1 (en)
GB (1) GB1353633A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE422117B (en) * 1980-09-22 1982-02-15 Bergkvist Lars A DEFINITION OF THE SINGLE LINES
WO1991003712A1 (en) * 1989-09-06 1991-03-21 Human Machine Interfaces Ltd. Measurement device

Also Published As

Publication number Publication date
GB1353633A (en) 1974-05-22
DE2126774A1 (en) 1971-12-16

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