GB1050061A - - Google Patents
Info
- Publication number
- GB1050061A GB1050061A GB1050061DA GB1050061A GB 1050061 A GB1050061 A GB 1050061A GB 1050061D A GB1050061D A GB 1050061DA GB 1050061 A GB1050061 A GB 1050061A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guides
- scale
- machine bed
- elements
- 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.)
- Expired
Links
- 239000002131 composite material Substances 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 2
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
Abstract
1,050,061. Apparatus for position measurement. J. HEIDENHAIN. Jan.14, 1965 [Oct. 2, 1964], No. 1744/64. Heading G1M. In apparatus for position measurement having two parts relatively displaceable to one another e.g. a machine bed 1 and a slideable table 2, a plurality of scales 3 are attached to the machine bed 1 joined together by connecting elements 6, in the shape of U-form parts 10, pads 11, 11' and screws 12, to make a composite scale and a scale reading device 4 attached to the slideable table 2, the composite scale being fixed to the machine bed 1 by a holding device 7, and supported in guides 8 at a plurality of other places. To facilitate guiding the scale 3 bearing elements 24, 24' see Figs. 2, (not shown) are fitted in forks 18, 19 of the guides 8. These elements 24, 24' may be replaced by pneumatic air bearings. An eccentrically mounted spring-loaded bearing element 27 is also mounted on the guides 8 to align them. The holding device 7 and connecting elements have the same coefficient of expansion as the individual scales.
Publications (1)
Publication Number | Publication Date |
---|---|
GB1050061A true GB1050061A (en) | 1900-01-01 |
Family
ID=1755553
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1050061D Expired GB1050061A (en) |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1050061A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755905A (en) * | 1969-06-25 | 1973-09-04 | Continental Oil Co | Method and apparatus for optical alignment of industrial equipment |
FR2341125A1 (en) * | 1976-02-14 | 1977-09-09 | Bayerische Motoren Werke Ag | DEVICE FOR MEASURING THE DIMENSIONS OF A ROOM |
FR2395483A1 (en) * | 1977-06-21 | 1979-01-19 | Heidenhain Gmbh Dr Johannes | SHIELDED LONG LENGTH MEASURING DEVICE |
US4554741A (en) * | 1983-05-03 | 1985-11-26 | Dr. Johannes Heidenhain Gmbh | Measuring system |
US4759132A (en) * | 1986-04-22 | 1988-07-26 | Giacomello Giacomo | Tape transducer for the incremental precision measurement of linear quantities, with predetermined coefficient of thermal expansion |
US4815213A (en) * | 1987-10-09 | 1989-03-28 | Brown & Sharpe Manufacturing Co. | Apparatus for temperature compensation of sensing means of a machine |
US5375338A (en) * | 1992-04-18 | 1994-12-27 | Dr. Johannes Heidenhain Gmbh | Length measurement device |
EP1731877A1 (en) * | 2005-06-08 | 2006-12-13 | Dr. Johannes Heidenhain GmbH | Encoder of a measurement system |
-
0
- GB GB1050061D patent/GB1050061A/en not_active Expired
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3755905A (en) * | 1969-06-25 | 1973-09-04 | Continental Oil Co | Method and apparatus for optical alignment of industrial equipment |
FR2341125A1 (en) * | 1976-02-14 | 1977-09-09 | Bayerische Motoren Werke Ag | DEVICE FOR MEASURING THE DIMENSIONS OF A ROOM |
FR2395483A1 (en) * | 1977-06-21 | 1979-01-19 | Heidenhain Gmbh Dr Johannes | SHIELDED LONG LENGTH MEASURING DEVICE |
US4160328A (en) * | 1977-06-21 | 1979-07-10 | Dr. Johannes Heidenhain Gmbh | Segmented longitudinal measuring device |
US4554741A (en) * | 1983-05-03 | 1985-11-26 | Dr. Johannes Heidenhain Gmbh | Measuring system |
US4759132A (en) * | 1986-04-22 | 1988-07-26 | Giacomello Giacomo | Tape transducer for the incremental precision measurement of linear quantities, with predetermined coefficient of thermal expansion |
US4815213A (en) * | 1987-10-09 | 1989-03-28 | Brown & Sharpe Manufacturing Co. | Apparatus for temperature compensation of sensing means of a machine |
US5375338A (en) * | 1992-04-18 | 1994-12-27 | Dr. Johannes Heidenhain Gmbh | Length measurement device |
EP1731877A1 (en) * | 2005-06-08 | 2006-12-13 | Dr. Johannes Heidenhain GmbH | Encoder of a measurement system |
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