JPS5788302A - Linearity/flatness measuring device - Google Patents
Linearity/flatness measuring deviceInfo
- Publication number
- JPS5788302A JPS5788302A JP14484281A JP14484281A JPS5788302A JP S5788302 A JPS5788302 A JP S5788302A JP 14484281 A JP14484281 A JP 14484281A JP 14484281 A JP14484281 A JP 14484281A JP S5788302 A JPS5788302 A JP S5788302A
- Authority
- JP
- Japan
- Prior art keywords
- signals
- evaluation stage
- difference
- subtracted
- indicator
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/30—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring roughness or irregularity of surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B13/00—Measuring arrangements characterised by the use of fluids
- G01B13/22—Measuring arrangements characterised by the use of fluids for measuring roughness or irregularity of surfaces
Abstract
An apparatus for testing for straightness and evenness comprises two vertical displacement transducers (30,31) providing electrical signals representing the relative levels of a reference surface (33) and a test surface (2), respectively. These signals are subtracted at (23) and the difference signal, representing the difference in the levels is fed via an evaluation stage (54) to an indicator (26). To enable the evaluation stage to correct the signal to the indicator for the effects of tilting of the surface under test during the measurement, two further pairs of vertical displacement transducers (39, 40 are one pair) are provided which are disposed respectively in the directions of the horizontal x and y co-ordinates. The two signals from each further pair of transducers are subtracted one from the other at (44) and the two resulting difference signals DELTA alpha , DELTA beta are fed to the evaluation stage (54) which is adapted to effect correction of the first- mentioned difference signal. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD22490380A DD154038B2 (en) | 1976-04-13 | 1980-11-03 | ARRANGEMENT FOR STRAIGHT AND LEVEL MEASUREMENT |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5788302A true JPS5788302A (en) | 1982-06-02 |
Family
ID=5527003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14484281A Pending JPS5788302A (en) | 1980-11-03 | 1981-09-16 | Linearity/flatness measuring device |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5788302A (en) |
CH (1) | CH655179A5 (en) |
DD (1) | DD154038B2 (en) |
DE (1) | DE3128451A1 (en) |
FR (1) | FR2493511B1 (en) |
GB (1) | GB2086589B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59171809A (en) * | 1983-03-18 | 1984-09-28 | Hitachi Ltd | Positioning mechanism |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0830743B2 (en) * | 1991-03-07 | 1996-03-27 | 株式会社ミツトヨ | Leveling device |
CN115854949B (en) * | 2023-03-02 | 2023-05-16 | 泗水县金佳工贸有限公司 | Arc automatic detection device and control method for arc roller for roll paper |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU408891B2 (en) * | 1967-09-11 | 1970-12-11 | Theuniversity Of Queensland | Tilt meter |
FR1601197A (en) * | 1968-12-31 | 1970-08-10 | ||
DE2607513C2 (en) * | 1976-02-25 | 1979-02-15 | Helmut Ing.(Grad.) Thierbach | Automatic measuring and monitoring device for the precise determination of relative height differences between different measuring points |
AT341239B (en) * | 1976-09-07 | 1978-01-25 | Wittmann Franz | HOSE LEVEL WITH ELECTRIC LEVEL INDICATOR |
US4087920A (en) * | 1977-03-25 | 1978-05-09 | The United States Of America As Represented By The Secretary Of The Interior | Two-fluid tiltmeter |
-
1980
- 1980-11-03 DD DD22490380A patent/DD154038B2/en not_active IP Right Cessation
-
1981
- 1981-07-18 DE DE19813128451 patent/DE3128451A1/en not_active Withdrawn
- 1981-08-18 CH CH534481A patent/CH655179A5/en not_active IP Right Cessation
- 1981-09-16 JP JP14484281A patent/JPS5788302A/en active Pending
- 1981-10-27 FR FR8120159A patent/FR2493511B1/en not_active Expired
- 1981-10-30 GB GB8132740A patent/GB2086589B/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59171809A (en) * | 1983-03-18 | 1984-09-28 | Hitachi Ltd | Positioning mechanism |
Also Published As
Publication number | Publication date |
---|---|
DE3128451A1 (en) | 1982-06-09 |
DD154038B2 (en) | 1986-07-16 |
FR2493511A1 (en) | 1982-05-07 |
GB2086589A (en) | 1982-05-12 |
CH655179A5 (en) | 1986-03-27 |
GB2086589B (en) | 1985-05-01 |
FR2493511B1 (en) | 1986-09-12 |
DD154038A2 (en) | 1982-02-17 |
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