SE8200144L - Optisk forskjutnings- resp forflyttningsomvandlare - Google Patents

Optisk forskjutnings- resp forflyttningsomvandlare

Info

Publication number
SE8200144L
SE8200144L SE8200144A SE8200144A SE8200144L SE 8200144 L SE8200144 L SE 8200144L SE 8200144 A SE8200144 A SE 8200144A SE 8200144 A SE8200144 A SE 8200144A SE 8200144 L SE8200144 L SE 8200144L
Authority
SE
Sweden
Prior art keywords
light beam
reference position
circular path
displacement
grating
Prior art date
Application number
SE8200144A
Other languages
English (en)
Swedish (sv)
Inventor
D A Rush
R D Swadling
Original Assignee
Smiths Industries Plc
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 Smiths Industries Plc filed Critical Smiths Industries Plc
Publication of SE8200144L publication Critical patent/SE8200144L/

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
    • G01D5/12—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 using electric or magnetic means
    • G01D5/244—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 using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/245—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 using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
    • G01D5/2454—Encoders incorporating incremental and absolute signals
    • G01D5/2455—Encoders incorporating incremental and absolute signals with incremental and absolute tracks on the same encoder
    • G01D5/2457—Incremental encoders having reference marks
    • 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
    • G01D5/347—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 using displacement encoding scales
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices
    • G01D5/34723—Scale reading or illumination devices involving light-guides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
SE8200144A 1981-01-13 1982-01-13 Optisk forskjutnings- resp forflyttningsomvandlare SE8200144L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8100961A GB2090968B (en) 1981-01-13 1981-01-13 Optical displacement transducers

Publications (1)

Publication Number Publication Date
SE8200144L true SE8200144L (sv) 1982-07-14

Family

ID=10518946

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8200144A SE8200144L (sv) 1981-01-13 1982-01-13 Optisk forskjutnings- resp forflyttningsomvandlare

Country Status (6)

Country Link
US (1) US4388613A ( )
DE (1) DE3200204A1 ( )
FR (1) FR2497945A1 ( )
GB (1) GB2090968B ( )
IT (1) IT1149427B ( )
SE (1) SE8200144L ( )

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3428474A1 (de) * 1984-08-02 1986-02-06 Dr. Johannes Heidenhain Gmbh, 8225 Traunreut Messeinrichtung
DE3720142A1 (de) * 1987-06-16 1988-12-29 Rottenkolber Holo System Gmbh Holographische messeinrichtung
US4831376A (en) * 1987-08-05 1989-05-16 Center For Innovative Technology Optical analog-to-digital converter and transducer
DE3822007A1 (de) * 1988-06-30 1990-01-04 Bodenseewerk Geraetetech Digitaler lagesignalgeber
DE3829647A1 (de) * 1988-09-01 1990-03-15 Bodenseewerk Geraetetech Bewegungssensor
US5038031A (en) * 1989-06-22 1991-08-06 Optec D.D. Melco Laboratory Co., Ltd. Optical rotary encoder having large and small numerical aperture fibers
AT410485B (de) * 1997-07-30 2003-05-26 Rsf Elektronik Gmbh Positionsmesseinrichtung
CA2319898C (en) 2000-09-18 2006-05-16 Institut National D'optique Position encoding optical device and method
DE10106699C2 (de) * 2001-02-14 2003-11-27 Leica Microsystems Berührungssensor und Vorrichtung zum Schutz eines hervorstehenden Bauteils
US7204137B1 (en) * 2003-08-20 2007-04-17 Essex, Inc. Thread breakage detection systems and methods

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3098152A (en) * 1957-10-01 1963-07-16 Continental Elektro Ind Ag Means for measuring scale motions
US3165730A (en) * 1959-04-15 1965-01-12 Bendix Corp Encoder
US3461307A (en) * 1964-01-21 1969-08-12 Imp Smelting Corp Ltd Radiation sensitive integrating device using synchronously driven rotating members
US3831169A (en) * 1972-05-15 1974-08-20 W Raser Opaque-vane analog to digital converter

Also Published As

Publication number Publication date
DE3200204A1 (de) 1982-08-12
IT8219041A0 (it) 1982-01-08
FR2497945A1 (fr) 1982-07-16
US4388613A (en) 1983-06-14
IT1149427B (it) 1986-12-03
GB2090968A (en) 1982-07-21
GB2090968B (en) 1985-03-13

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