DE2144835C3 - Elektrooptischer Winkel-Messwertgeber - Google Patents

Elektrooptischer Winkel-Messwertgeber

Info

Publication number
DE2144835C3
DE2144835C3 DE19712144835 DE2144835A DE2144835C3 DE 2144835 C3 DE2144835 C3 DE 2144835C3 DE 19712144835 DE19712144835 DE 19712144835 DE 2144835 A DE2144835 A DE 2144835A DE 2144835 C3 DE2144835 C3 DE 2144835C3
Authority
DE
Germany
Prior art keywords
polarizer
light
bundles
axis
rotation
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
DE19712144835
Other languages
German (de)
English (en)
Other versions
DE2144835A1 (de
DE2144835B2 (de
Inventor
Francois Dr.Dr.Phil.Nat. Zuerich Mottier (Schweiz)
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
BBC Brown Boveri AG Switzerland
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 BBC Brown Boveri AG Switzerland filed Critical BBC Brown Boveri AG Switzerland
Publication of DE2144835A1 publication Critical patent/DE2144835A1/de
Publication of DE2144835B2 publication Critical patent/DE2144835B2/de
Application granted granted Critical
Publication of DE2144835C3 publication Critical patent/DE2144835C3/de
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G01D5/32Mechanical 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
    • G01D5/34Mechanical 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
    • G01D5/344Mechanical 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 using polarisation
    • G01D5/345Polarising encoders

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Optical Transform (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Gyroscopes (AREA)
DE19712144835 1971-08-20 1971-09-08 Elektrooptischer Winkel-Messwertgeber Expired DE2144835C3 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1225871A CH535421A (de) 1971-08-20 1971-08-20 Einrichtung zum Messen der Winkelstellung eines rotierenden Körpers

Publications (3)

Publication Number Publication Date
DE2144835A1 DE2144835A1 (de) 1973-05-10
DE2144835B2 DE2144835B2 (de) 1974-02-28
DE2144835C3 true DE2144835C3 (de) 1974-09-26

Family

ID=4381350

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19712144835 Expired DE2144835C3 (de) 1971-08-20 1971-09-08 Elektrooptischer Winkel-Messwertgeber

Country Status (4)

Country Link
CH (1) CH535421A (enExample)
DE (1) DE2144835C3 (enExample)
FR (1) FR2151296A5 (enExample)
IT (1) IT963577B (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944162A1 (de) * 1979-11-02 1981-05-07 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Lichtelektrische digitale messeinrichtung
DE2944363A1 (de) * 1979-11-02 1981-05-14 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Lichtelektrische digitale messeinrichtung

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2728340B1 (fr) * 1994-12-20 1997-01-24 Thomson Csf Dispositif de mesure de position angulaire d'une partie mobile, notamment d'une antenne, par rapport a une autre partie mecanique

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2944162A1 (de) * 1979-11-02 1981-05-07 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Lichtelektrische digitale messeinrichtung
DE2944363A1 (de) * 1979-11-02 1981-05-14 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Lichtelektrische digitale messeinrichtung
US4369366A (en) 1979-11-02 1983-01-18 Dr. Johannes Heidenhain Gmbh Photoelectric digital measuring instrument balancing circuit
US4399358A (en) 1979-11-02 1983-08-16 Dr. Johannes Heidenhain Gmbh Photoelectric digital measuring instrument having multiple light sources

Also Published As

Publication number Publication date
CH535421A (de) 1973-03-31
DE2144835A1 (de) 1973-05-10
DE2144835B2 (de) 1974-02-28
FR2151296A5 (enExample) 1973-04-13
IT963577B (it) 1974-01-21

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Legal Events

Date Code Title Description
C3 Grant after two publication steps (3rd publication)