DK0417742T3 - Electro-optic sensing unit for a longitudinal or angular measuring device - Google Patents

Electro-optic sensing unit for a longitudinal or angular measuring device

Info

Publication number
DK0417742T3
DK0417742T3 DK90117514.1T DK90117514T DK0417742T3 DK 0417742 T3 DK0417742 T3 DK 0417742T3 DK 90117514 T DK90117514 T DK 90117514T DK 0417742 T3 DK0417742 T3 DK 0417742T3
Authority
DK
Denmark
Prior art keywords
electro
longitudinal
measuring device
sensing unit
optic sensing
Prior art date
Application number
DK90117514.1T
Other languages
Danish (da)
Inventor
Arnold Geroldinger
Original Assignee
Litton Precision Prod Int
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 Litton Precision Prod Int filed Critical Litton Precision Prod Int
Application granted granted Critical
Publication of DK0417742T3 publication Critical patent/DK0417742T3/en

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
    • G01D5/347Mechanical 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 displacement encoding scales
    • G01D5/34707Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715Scale reading or illumination devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Tests Of Electronic Circuits (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Gyroscopes (AREA)

Abstract

The electrooptical scanning device for a length- or angle-measuring instrument, preferably for a rotary transducer, is equipped according to the invention with a mechanical trimming system, especially for the trigger thresholds and amplitudes of the read-out signals. Said trimming system consists in that the individual receiver elements (7) are accommodated in slots (6) which can be finely adjusted individually by means of a spindle (4) inside a slotted guide (2) of an adjusting plate (1). The advantage of the invention arises especially in the case of low-impulse rotary transducers owing to the possibility of individual, very simple receiver readjustment via the adjusting spindle. <IMAGE>
DK90117514.1T 1989-09-11 1990-09-11 Electro-optic sensing unit for a longitudinal or angular measuring device DK0417742T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3930303A DE3930303A1 (en) 1989-09-11 1989-09-11 ELECTROOPTIC SCANNER UNIT FOR A LENGTH OR ANGLE MEASURING DEVICE

Publications (1)

Publication Number Publication Date
DK0417742T3 true DK0417742T3 (en) 1993-12-13

Family

ID=6389177

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90117514.1T DK0417742T3 (en) 1989-09-11 1990-09-11 Electro-optic sensing unit for a longitudinal or angular measuring device

Country Status (5)

Country Link
EP (1) EP0417742B1 (en)
AT (1) ATE97485T1 (en)
DE (2) DE3930303A1 (en)
DK (1) DK0417742T3 (en)
ES (1) ES2045700T3 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19621188B4 (en) * 1996-05-25 2005-07-14 Leica Geosystems Ag Optical sensor for determining the angle of rotation of a rotation axis
CN101339053B (en) * 2008-08-08 2010-06-23 中国科学院长春光学精密机械与物理研究所 Double group reading matrix type photoelectric coded circle

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1223141A (en) * 1967-03-15 1971-02-24 Richards & Co Ltd George Reading head
DE1921507C2 (en) * 1969-04-26 1971-02-11 Zeiss Carl Fa Device for generating phase-shifted electrical signals
DD143953B1 (en) * 1979-07-31 1981-07-29 Der Goenne Rainer Von Optical-electronic measuring device for incremental angle measurement
DE3229846C2 (en) * 1982-08-11 1984-05-24 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Length or angle measuring device
WO1986002440A1 (en) * 1984-10-18 1986-04-24 Matsushita Electric Works, Ltd. Photoelectric position detector circuit
AT393737B (en) * 1984-12-05 1991-12-10 Emr Elektronische Mess Und Reg INCREMENTAL MEASURING SYSTEM FOR MEASURING LENGTHS AND ANGLES

Also Published As

Publication number Publication date
ATE97485T1 (en) 1993-12-15
EP0417742B1 (en) 1993-11-18
DE59003528D1 (en) 1993-12-23
EP0417742A1 (en) 1991-03-20
ES2045700T3 (en) 1994-01-16
DE3930303A1 (en) 1991-03-14

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