AU2000240414A1 - Rotary encoder - Google Patents
Rotary encoderInfo
- Publication number
- AU2000240414A1 AU2000240414A1 AU2000240414A AU4041400A AU2000240414A1 AU 2000240414 A1 AU2000240414 A1 AU 2000240414A1 AU 2000240414 A AU2000240414 A AU 2000240414A AU 4041400 A AU4041400 A AU 4041400A AU 2000240414 A1 AU2000240414 A1 AU 2000240414A1
- Authority
- AU
- Australia
- Prior art keywords
- read head
- measurement pattern
- strip
- disk
- position measurement
- 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.)
- Abandoned
Links
- 238000005259 measurement Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
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
- G01D5/347—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
-
- 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
- G01D5/38—Forming the light into pulses by diffraction gratings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Analogue/Digital Conversion (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Stepping Motors (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/US2000/008294 WO2001073379A1 (en) | 2000-03-28 | 2000-03-28 | Rotary encoder |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2000240414A1 true AU2000240414A1 (en) | 2001-10-08 |
Family
ID=21741210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2000240414A Abandoned AU2000240414A1 (en) | 2000-03-28 | 2000-03-28 | Rotary encoder |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1272817B1 (de) |
AT (1) | ATE458985T1 (de) |
AU (1) | AU2000240414A1 (de) |
CA (1) | CA2443768C (de) |
DE (1) | DE60043898D1 (de) |
WO (1) | WO2001073379A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2391302A (en) * | 2002-06-13 | 2004-02-04 | Graham Cyril Rumsey | A system for the measurement of torque,vibration, balance and/or speed |
US7385178B2 (en) | 2005-10-26 | 2008-06-10 | Avago Technologies Ecbu Ip Pte Ltd | Reflective encoders with various emitter-detector configurations |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59224515A (ja) * | 1983-06-03 | 1984-12-17 | Mitsubishi Electric Corp | 光学式エンコ−ダ |
JPS6255511A (ja) * | 1985-09-05 | 1987-03-11 | Sharp Corp | ロ−タリ−エンコ−ダ |
NL8502679A (nl) * | 1985-10-01 | 1987-05-04 | Philips Nv | Optisch omzetelement en verplaatsingsmeter voorzien van dit element. |
DE68906290T2 (de) * | 1988-02-22 | 1993-09-23 | Victor Company Of Japan | Detektorsystem mit einem optischen rotierenden kodierer zur feststellung der verschiebung einer beweglichen vorrichtung. |
JP3098358B2 (ja) * | 1992-11-27 | 2000-10-16 | 三菱電機株式会社 | 位置検出素子、その位置検出素子を用いた位置検出方法、および光学式ロータリーエンコーダ |
US5699058A (en) * | 1994-03-17 | 1997-12-16 | Copal Company Limited | Absolute encoder generating phase-shifted triangular waveforms to produce multi-bit signals |
JP3530573B2 (ja) * | 1994-04-27 | 2004-05-24 | キヤノン株式会社 | 光学式変位センサ |
US5844676A (en) * | 1997-05-29 | 1998-12-01 | Quadrant Engineering, Inc. | Method and apparatus for measuring radial error of rotating encoded disks |
-
2000
- 2000-03-28 AT AT00919788T patent/ATE458985T1/de not_active IP Right Cessation
- 2000-03-28 CA CA002443768A patent/CA2443768C/en not_active Expired - Fee Related
- 2000-03-28 EP EP00919788A patent/EP1272817B1/de not_active Expired - Lifetime
- 2000-03-28 AU AU2000240414A patent/AU2000240414A1/en not_active Abandoned
- 2000-03-28 DE DE60043898T patent/DE60043898D1/de not_active Expired - Fee Related
- 2000-03-28 WO PCT/US2000/008294 patent/WO2001073379A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP1272817B1 (de) | 2010-02-24 |
EP1272817A1 (de) | 2003-01-08 |
CA2443768A1 (en) | 2001-10-04 |
ATE458985T1 (de) | 2010-03-15 |
CA2443768C (en) | 2007-11-20 |
DE60043898D1 (de) | 2010-04-08 |
WO2001073379A1 (en) | 2001-10-04 |
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