GB997405A - Improvements in or relating to devices for measuring displacements - Google Patents

Improvements in or relating to devices for measuring displacements

Info

Publication number
GB997405A
GB997405A GB4625561A GB4625561A GB997405A GB 997405 A GB997405 A GB 997405A GB 4625561 A GB4625561 A GB 4625561A GB 4625561 A GB4625561 A GB 4625561A GB 997405 A GB997405 A GB 997405A
Authority
GB
United Kingdom
Prior art keywords
relating
devices
measuring displacements
displacements
measuring
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
GB4625561A
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 Electronics UK Ltd
Original Assignee
Philips Electronic and Associated 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 Electronic and Associated Industries Ltd filed Critical Philips Electronic and Associated Industries Ltd
Publication of GB997405A publication Critical patent/GB997405A/en
Expired 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
    • 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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB4625561A 1960-12-29 1961-12-27 Improvements in or relating to devices for measuring displacements Expired GB997405A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL259555 1960-12-29

Publications (1)

Publication Number Publication Date
GB997405A true GB997405A (en) 1965-07-07

Family

ID=19752785

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4625561A Expired GB997405A (en) 1960-12-29 1961-12-27 Improvements in or relating to devices for measuring displacements

Country Status (2)

Country Link
CH (1) CH412357A (en)
GB (1) GB997405A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5000572A (en) * 1987-05-11 1991-03-19 Canon Kabushiki Kaisha Distance measuring system
US5026985A (en) * 1988-09-30 1991-06-25 Canon Kabushiki Kaisha Method and apparatus for detecting a reference position of a rotating scale with two sensors

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
US5000572A (en) * 1987-05-11 1991-03-19 Canon Kabushiki Kaisha Distance measuring system
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
US5026985A (en) * 1988-09-30 1991-06-25 Canon Kabushiki Kaisha Method and apparatus for detecting a reference position of a rotating scale with two sensors

Also Published As

Publication number Publication date
CH412357A (en) 1966-04-30

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