SE338871B - - Google Patents
Info
- Publication number
- SE338871B SE338871B SE17903/68A SE1790368A SE338871B SE 338871 B SE338871 B SE 338871B SE 17903/68 A SE17903/68 A SE 17903/68A SE 1790368 A SE1790368 A SE 1790368A SE 338871 B SE338871 B SE 338871B
- Authority
- SE
- Sweden
- Prior art keywords
- transparent
- marks
- opaque
- uniformly
- cycle
- Prior art date
Links
- 125000004122 cyclic group Chemical group 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000011664 signaling Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- 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
- G01D5/34776—Absolute encoders with analogue or digital scales
- G01D5/34792—Absolute encoders with analogue or digital scales with only digital scales or both digital and incremental scales
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/10—Calibration or testing
- H03M1/1009—Calibration
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88268A AT288050B (de) | 1968-01-29 | 1968-01-29 | Einrichtung zum Messen von Längen oder Winkeln |
Publications (1)
Publication Number | Publication Date |
---|---|
SE338871B true SE338871B (xx) | 1971-09-20 |
Family
ID=3501995
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE17903/68A SE338871B (xx) | 1968-01-29 | 1968-12-27 |
Country Status (8)
Country | Link |
---|---|
US (1) | US3591841A (xx) |
AT (1) | AT288050B (xx) |
CH (1) | CH494395A (xx) |
DE (1) | DE1301916B (xx) |
FR (1) | FR2000878A1 (xx) |
GB (1) | GB1210483A (xx) |
NL (1) | NL6900817A (xx) |
SE (1) | SE338871B (xx) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3723748A (en) * | 1971-06-23 | 1973-03-27 | Ibm | Digital tachometer with symmetrical output |
US3748043A (en) * | 1972-03-20 | 1973-07-24 | Bendix Corp | Photoelectric interpolating arrangement for reading displacements of divided scales |
US3982106A (en) * | 1973-05-14 | 1976-09-21 | Contraves Ag | System for measuring the longitudinal or angular displacement of a movable component |
US3967135A (en) * | 1974-04-11 | 1976-06-29 | Eaton Corporation | Acceleration change sensor |
FR2310549A1 (fr) * | 1975-05-07 | 1976-12-03 | Sagem | Perfectionnements aux dispositifs optiques de determination de la position d'un organe mobile |
DE2540412B2 (de) * | 1975-09-11 | 1979-08-02 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Inkrementales Meßsystem |
GB2023281B (en) * | 1978-06-17 | 1983-08-17 | Marconi Co Ltd | Position encoders |
US4216868A (en) * | 1978-08-04 | 1980-08-12 | Eaton Corporation | Optical digital sensor for crane operating aid |
US4247214A (en) * | 1978-11-08 | 1981-01-27 | Ncr Corporation | Character position control for a matrix printer |
US4302109A (en) * | 1979-06-19 | 1981-11-24 | The Marconi Company Limited | Position encoders |
JPS56153212A (en) * | 1980-04-30 | 1981-11-27 | Toshiba Corp | Encoder |
US4427883A (en) * | 1981-05-27 | 1984-01-24 | The Stanley Works | Optical sensing system for extensible tape rules |
FR2529665A1 (fr) * | 1982-07-05 | 1984-01-06 | Sfena | Capteur rotatif de position angulaire a sorties numeriques |
US4502336A (en) * | 1982-09-14 | 1985-03-05 | United Technologies Corporation | Pressure measuring device |
GB2130034A (en) * | 1982-11-12 | 1984-05-23 | Plessey Co Plc | Position detecting apparatus |
EP0203897A1 (en) * | 1985-04-26 | 1986-12-03 | SiTek Lab AB | Position-determining apparatus |
ES2054406T3 (es) * | 1990-08-09 | 1994-08-01 | Hohner Elektrotechnik Kg | Dispositivo explorador optoelectronico. |
JPH08210824A (ja) * | 1995-02-07 | 1996-08-20 | Canon Inc | 回転検出装置及び回転制御装置 |
DE19962278A1 (de) * | 1999-12-23 | 2001-08-02 | Heidenhain Gmbh Dr Johannes | Positionsmeßeinrichtung |
DK1818664T3 (da) | 2006-02-13 | 2013-08-05 | Hoffmann La Roche | Apparat til erkendelse af en trykændring i et mikrodoseringsapparats væskebane |
EP2120018A1 (en) | 2008-05-14 | 2009-11-18 | Nederlandse Organisatie voor toegepast-natuurwetenschappelijk Onderzoek TNO | Measuring system for measuring the rotational displacement. |
CN106348094B (zh) * | 2016-09-21 | 2022-11-01 | 深圳怡化电脑股份有限公司 | 一种带缠绕机构 |
US11428589B2 (en) | 2017-10-16 | 2022-08-30 | Saf-Holland, Inc. | Displacement sensor utilizing ronchi grating interference |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2416968A (en) * | 1947-03-04 | Stroboscope device for determining | ||
US2886717A (en) * | 1953-03-14 | 1959-05-12 | Ferranti Ltd | Measuring apparatus |
US2832259A (en) * | 1955-02-14 | 1958-04-29 | Nat Res Dev | Optical measuring systems |
US3014134A (en) * | 1957-10-30 | 1961-12-19 | North American Aviation Inc | Control for intensity of illumination |
DE1282988B (de) * | 1965-05-28 | 1968-11-14 | Zeiss Carl Fa | Einrichtung zum Messen von Lageaenderungen zweier zueinander beweglicher Teile unterVerwendung einer inkohaerenten Strahlung |
-
1968
- 1968-01-29 AT AT88268A patent/AT288050B/de not_active IP Right Cessation
- 1968-04-13 DE DEP1773210.4A patent/DE1301916B/de active Pending
- 1968-12-27 SE SE17903/68A patent/SE338871B/xx unknown
-
1969
- 1969-01-15 CH CH51969A patent/CH494395A/de not_active IP Right Cessation
- 1969-01-17 NL NL6900817A patent/NL6900817A/xx unknown
- 1969-01-20 GB GB3218/69A patent/GB1210483A/en not_active Expired
- 1969-01-21 FR FR6901048A patent/FR2000878A1/fr not_active Withdrawn
- 1969-01-24 US US793711*A patent/US3591841A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2000878A1 (xx) | 1969-09-19 |
US3591841A (en) | 1971-07-06 |
NL6900817A (xx) | 1969-07-31 |
DE1301916B (de) | 1969-08-28 |
CH494395A (de) | 1970-07-31 |
GB1210483A (en) | 1970-10-28 |
AT288050B (de) | 1971-02-25 |
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