GB1143542A - - Google Patents
Info
- Publication number
- GB1143542A GB1143542A GB1143542DA GB1143542A GB 1143542 A GB1143542 A GB 1143542A GB 1143542D A GB1143542D A GB 1143542DA GB 1143542 A GB1143542 A GB 1143542A
- Authority
- GB
- United Kingdom
- Prior art keywords
- scale
- line
- photo
- cells
- scanning
- 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.)
- Active
Links
- 230000000873 masking effect Effects 0.000 abstract 4
- 238000005259 measurement Methods 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
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
- H03M1/30—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental
- H03M1/308—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding incremental with additional pattern means for determining the absolute position, e.g. 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
- G01D5/12—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
- G01D5/34776—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)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4856765 | 1965-11-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1143542A true GB1143542A (US06521211-20030218-C00004.png) |
Family
ID=10449066
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1143542D Active GB1143542A (US06521211-20030218-C00004.png) | 1965-11-16 |
Country Status (6)
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2730715C2 (de) * | 1974-07-26 | 1991-08-29 | Heinz 5121 Ostermiething Rieder | Einrichtung zur Längenmessung |
DE3308813C2 (de) * | 1983-03-12 | 1985-02-07 | Dr. Johannes Heidenhain Gmbh, 8225 Traunreut | Meßeinrichtung |
AT397872B (de) * | 1991-06-03 | 1994-07-25 | Rsf Elektronik Gmbh | Inkrementales messsystem |
US6175109B1 (en) * | 1998-12-16 | 2001-01-16 | Renco Encoders, Inc. | Encoder for providing incremental and absolute position data |
DE112010003179B4 (de) * | 2009-09-18 | 2016-12-29 | Illinois Tool Works, Inc. | Optische Verschiebungsmessvorrichtung und Verfahren zur Messung einer Verschiebung |
EP2386832B1 (en) * | 2010-05-10 | 2017-04-12 | Mitutoyo Corporation | Photoelectric encoder |
US20160167309A1 (en) * | 2013-07-31 | 2016-06-16 | Panowin Technologies Co., Ltd | Closed-loop control fused deposition modeling high-speed 3d printer and closed-loop control method |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2845710A (en) * | 1949-02-14 | 1958-08-05 | Onera (Off Nat Aerospatiale) | Devices for directly measuring and instantaneously recording the angular displacements of a body |
US3153111A (en) * | 1958-06-26 | 1964-10-13 | Nat Res Dev | Measurement of displacements |
US3387139A (en) * | 1965-11-09 | 1968-06-04 | Allied Res Associates Inc | Photoelectric measuring apparatus using gratings |
-
0
- GB GB1143542D patent/GB1143542A/en active Active
-
1966
- 1966-11-14 US US594082A patent/US3496374A/en not_active Expired - Lifetime
- 1966-11-15 SE SE15596/66A patent/SE326570B/xx unknown
- 1966-11-16 FR FR83840A patent/FR1513355A/fr not_active Expired
- 1966-11-16 CH CH1642966A patent/CH472021A/de not_active IP Right Cessation
- 1966-11-16 DE DE19661548733 patent/DE1548733A1/de active Pending
Also Published As
Publication number | Publication date |
---|---|
CH472021A (de) | 1969-04-30 |
US3496374A (en) | 1970-02-17 |
FR1513355A (fr) | 1968-02-16 |
DE1548733A1 (de) | 1969-09-25 |
SE326570B (US06521211-20030218-C00004.png) | 1970-07-27 |
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