ES2024278A6 - Method and optical sensor for determining the position of a moving body - Google Patents

Method and optical sensor for determining the position of a moving body

Info

Publication number
ES2024278A6
ES2024278A6 ES9001478A ES9001478A ES2024278A6 ES 2024278 A6 ES2024278 A6 ES 2024278A6 ES 9001478 A ES9001478 A ES 9001478A ES 9001478 A ES9001478 A ES 9001478A ES 2024278 A6 ES2024278 A6 ES 2024278A6
Authority
ES
Spain
Prior art keywords
optical sensor
signals
determining
displacements
sum
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 - Lifetime
Application number
ES9001478A
Other languages
Spanish (es)
Inventor
Stefano Cecchi
Francesco Simonelli
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.)
Pirelli and C SpA
Original Assignee
Pirelli Cavi SpA
Cavi Pirelli SpA
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 Pirelli Cavi SpA, Cavi Pirelli SpA filed Critical Pirelli Cavi SpA
Publication of ES2024278A6 publication Critical patent/ES2024278A6/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

The invention relates to the measurement of displacements. An optical sensor comprises a collimated source 2 fixed to a moving object and a series of optical detectors L1, L2...Ln aligned on a fixed body, in the direction of the movement, directly facing the source photodiodes convert the optical signals picked up into electric signals a computer takes the sum of the electric signals and a sum of the products of these signals multiplied by a constant coefficient, then it takes the ratio of these sums and compares the ratio with a stored scale of ratios which gives the position of the moving object. Main application: measurement of displacements.
ES9001478A 1989-05-30 1990-05-29 Method and optical sensor for determining the position of a moving body Expired - Lifetime ES2024278A6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8920700A IT1229387B (en) 1989-05-30 1989-05-30 METHOD AND OPTICAL SENSOR FOR DETERMINING THE POSITION OF A MOBILE BODY.

Publications (1)

Publication Number Publication Date
ES2024278A6 true ES2024278A6 (en) 1992-02-16

Family

ID=11170758

Family Applications (1)

Application Number Title Priority Date Filing Date
ES9001478A Expired - Lifetime ES2024278A6 (en) 1989-05-30 1990-05-29 Method and optical sensor for determining the position of a moving body

Country Status (3)

Country Link
ES (1) ES2024278A6 (en)
FR (1) FR2647897B1 (en)
IT (1) IT1229387B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2266142B (en) * 1992-04-15 1996-09-25 Butler Newall Ltd Improvements in or relating to methods and control systems for registering a datum position between two relatively movable components of a machine tool
FR3112851B1 (en) 2020-07-24 2022-09-09 Univ Aix Marseille Device and method for optical position detection
FR3132154B1 (en) * 2022-01-21 2024-02-09 Univ Aix Marseille Optical sensing device user interface

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA836137A (en) * 1963-05-03 1970-03-03 Westinghouse Electric Corporation Current responsive apparatus for high voltage circuits
GB1551046A (en) * 1975-08-27 1979-08-22 Bell & Howell Ltd Apparatus for determining the position of a spot of light on a plane surgace
GB1536022A (en) * 1977-01-10 1978-12-13 Integrated Photomatrix Ltd Measurement of position using an array of photosensitive elements
JPS5863801A (en) * 1981-10-13 1983-04-15 Komatsu Ltd Displacement detector
GB2156972B (en) * 1984-04-06 1988-07-06 Plessey Co Plc Improvements relating to the manufacture of optical devices

Also Published As

Publication number Publication date
IT8920700A0 (en) 1989-05-30
IT1229387B (en) 1991-08-08
FR2647897B1 (en) 1994-12-30
FR2647897A1 (en) 1990-12-07

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20101018