DE2237032B2 - - Google Patents

Info

Publication number
DE2237032B2
DE2237032B2 DE19722237032 DE2237032A DE2237032B2 DE 2237032 B2 DE2237032 B2 DE 2237032B2 DE 19722237032 DE19722237032 DE 19722237032 DE 2237032 A DE2237032 A DE 2237032A DE 2237032 B2 DE2237032 B2 DE 2237032B2
Authority
DE
Germany
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.)
Granted
Application number
DE19722237032
Other languages
German (de)
Other versions
DE2237032C3 (en
DE2237032A1 (en
Inventor
Klas Rudolf Taeby Wiklund
Erik Kurt Ove Lidingoe Stenberg
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.)
Geotronics AB
Original Assignee
AGA AB
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 AGA AB filed Critical AGA AB
Publication of DE2237032A1 publication Critical patent/DE2237032A1/en
Publication of DE2237032B2 publication Critical patent/DE2237032B2/de
Application granted granted Critical
Publication of DE2237032C3 publication Critical patent/DE2237032C3/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
DE19722237032 1971-08-23 1972-07-28 Protractor Expired DE2237032C3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1066571A SE355668B (en) 1971-08-23 1971-08-23

Publications (3)

Publication Number Publication Date
DE2237032A1 DE2237032A1 (en) 1973-03-08
DE2237032B2 true DE2237032B2 (en) 1974-11-28
DE2237032C3 DE2237032C3 (en) 1975-07-24

Family

ID=20292665

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722237032 Expired DE2237032C3 (en) 1971-08-23 1972-07-28 Protractor

Country Status (9)

Country Link
JP (1) JPS5626804B2 (en)
CA (1) CA975553A (en)
CH (1) CH562442A5 (en)
DE (1) DE2237032C3 (en)
FR (1) FR2151356A5 (en)
GB (1) GB1396423A (en)
IT (1) IT965082B (en)
NL (1) NL7210296A (en)
SE (1) SE355668B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845534A1 (en) * 1977-10-20 1979-04-26 Sercel Rech Const Elect ELECTRONIC ANGLE MEASURING DEVICE
DE19601674A1 (en) * 1996-01-18 1997-07-24 Teves Gmbh Alfred Steering angle encoder for motor vehicles working according to the differential measurement principle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4318617A (en) * 1979-12-14 1982-03-09 Keuffel & Esser Company DC Shift error correction for electro-optical measuring system
GB2076147B (en) * 1980-05-15 1984-07-11 Ferranti Ltd Position encoder
JPS57206821A (en) * 1981-06-15 1982-12-18 Fujitsu Ltd Detector for position and speed
JPS57206822A (en) * 1981-06-15 1982-12-18 Fujitsu Ltd Detector for position and speed
JPS5826208A (en) * 1981-08-08 1983-02-16 Fujitsu Ltd Detector for position and speed
JP2571096B2 (en) * 1988-04-18 1997-01-16 ファナック株式会社 Encoder
US4931636A (en) * 1988-08-26 1990-06-05 The Boeing Company Two wavelength optical sensor and sensing system
DE3901534C1 (en) * 1989-01-20 1990-04-26 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut, De
DE69225847T2 (en) * 1991-08-14 1998-12-24 Philips Electronics N.V., Eindhoven X-ray analyzer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2845534A1 (en) * 1977-10-20 1979-04-26 Sercel Rech Const Elect ELECTRONIC ANGLE MEASURING DEVICE
DE19601674A1 (en) * 1996-01-18 1997-07-24 Teves Gmbh Alfred Steering angle encoder for motor vehicles working according to the differential measurement principle
DE19601674B4 (en) * 1996-01-18 2005-08-04 Valeo Schalter Und Sensoren Gmbh According to Differenzmeßprinzip working steering angle sensor for motor vehicles

Also Published As

Publication number Publication date
IT965082B (en) 1974-01-31
JPS4830957A (en) 1973-04-23
DE2237032C3 (en) 1975-07-24
SE355668B (en) 1973-04-30
DE2237032A1 (en) 1973-03-08
NL7210296A (en) 1973-02-27
CH562442A5 (en) 1975-05-30
FR2151356A5 (en) 1973-04-13
CA975553A (en) 1975-10-07
JPS5626804B2 (en) 1981-06-20
GB1396423A (en) 1975-06-04

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)
E77 Valid patent as to the heymanns-index 1977
8327 Change in the person/name/address of the patent owner

Owner name: PHAROS AB, 18181 LIDINGOE, SE

8327 Change in the person/name/address of the patent owner

Owner name: GEOTRONICS AB, DANDERYD, SE