GB8725143D0 - Displacement measuring apparatus - Google Patents
Displacement measuring apparatusInfo
- Publication number
- GB8725143D0 GB8725143D0 GB878725143A GB8725143A GB8725143D0 GB 8725143 D0 GB8725143 D0 GB 8725143D0 GB 878725143 A GB878725143 A GB 878725143A GB 8725143 A GB8725143 A GB 8725143A GB 8725143 D0 GB8725143 D0 GB 8725143D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- measuring apparatus
- displacement measuring
- displacement
- measuring
- 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.)
- Granted
Links
- 238000006073 displacement reaction Methods 0.000 title 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
- G01D5/36—Forming the light into pulses
- G01D5/38—Forming the light into pulses by diffraction gratings
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP25993886A JPS63115012A (en) | 1986-10-31 | 1986-10-31 | Displacement measuring instrument |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8725143D0 true GB8725143D0 (en) | 1987-12-02 |
GB2201509A GB2201509A (en) | 1988-09-01 |
GB2201509B GB2201509B (en) | 1990-11-14 |
Family
ID=17341009
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8725143A Expired - Lifetime GB2201509B (en) | 1986-10-31 | 1987-10-27 | Displacement measuring apparatus capable of forming an output signal of substantially constant amplitude |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPS63115012A (en) |
DE (1) | DE3736704C2 (en) |
GB (1) | GB2201509B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5035507A (en) * | 1988-12-21 | 1991-07-30 | Mitutoyo Corporation | Grating-interference type displacement meter apparatus |
DE3911880A1 (en) * | 1989-04-11 | 1990-10-18 | Radex Heraklith | METHOD FOR PRODUCING PERICLAS CRYSTALS |
DE4033013C2 (en) * | 1990-10-18 | 1994-11-17 | Heidenhain Gmbh Dr Johannes | Polarization-optical arrangement |
US5104225A (en) * | 1991-01-25 | 1992-04-14 | Mitutoyo Corporation | Position detector and method of measuring position |
GB2256476B (en) * | 1991-05-30 | 1995-09-27 | Rank Taylor Hobson Ltd | Positional measurement |
DE4318386C2 (en) * | 1993-06-01 | 2002-09-19 | Rohm Co Ltd | Optical encoder device for detecting the movement of a movable element |
DE10056605A1 (en) | 2000-11-15 | 2002-05-23 | Kostal Leopold Gmbh & Co Kg | Method for signal evaluation of an opto-electronic path or angle measurement device, especially for determination of a vehicle steering column position, in which adjustments can be made for impaired sensors or damaged code wheel |
DE10056604A1 (en) | 2000-11-15 | 2002-05-23 | Kostal Leopold Gmbh & Co Kg | Method for signal evaluation of an opto-electronic path or angle measurement device, especially for determination of a motor vehicle steering angle, in which the effects of impaired sensors or a damaged code wheel are compensated |
DE10107582C1 (en) * | 2001-02-17 | 2002-10-10 | Kostal Leopold Gmbh & Co Kg | Optoelectronic angle sensor for vehicle steering, has light barrier transmitter radiation intensity in asymptotic region of intensity-switching point curve giving switch change for off-center beam interruption |
JP5602420B2 (en) * | 2009-12-10 | 2014-10-08 | キヤノン株式会社 | Displacement measuring device, exposure device, and precision processing equipment |
DE102010063253A1 (en) * | 2010-12-16 | 2012-06-21 | Dr. Johannes Heidenhain Gmbh | Optical position measuring device |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH444964A (en) * | 1965-10-02 | 1967-10-15 | Oerlikon Buehrle Holding Ag | Arrangement to compensate for variable interfering influences on a radiation-electrical measuring or control path |
DE2003492A1 (en) * | 1970-01-27 | 1971-08-12 | Leitz Ernst Gmbh | Measuring method for step encoders for measuring lengths or angles as well as arrangements for carrying out this measuring method |
JPS57139607A (en) * | 1981-02-23 | 1982-08-28 | Hitachi Ltd | Position measuring equipment |
DE3316144A1 (en) * | 1982-05-04 | 1983-11-10 | Canon K.K., Tokyo | Method and device for measuring the extent of a movement |
US4629886A (en) * | 1983-03-23 | 1986-12-16 | Yokogawa Hokushin Electric Corporation | High resolution digital diffraction grating scale encoder |
JPS59173709A (en) * | 1983-03-23 | 1984-10-01 | Yokogawa Hokushin Electric Corp | Physical quantity measuring system |
JPH0624405A (en) * | 1991-12-06 | 1994-02-01 | Kurobaa Shokuhin:Kk | Method and device for inserting food in packing bag |
-
1986
- 1986-10-31 JP JP25993886A patent/JPS63115012A/en active Pending
-
1987
- 1987-10-27 GB GB8725143A patent/GB2201509B/en not_active Expired - Lifetime
- 1987-10-29 DE DE19873736704 patent/DE3736704C2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3736704C2 (en) | 1995-11-23 |
JPS63115012A (en) | 1988-05-19 |
DE3736704A1 (en) | 1988-05-11 |
GB2201509B (en) | 1990-11-14 |
GB2201509A (en) | 1988-09-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 20071026 |