FR2432158A1 - Rotating disc profile measuring system - uses laser beams deflected by pentagonal prisms onto right angled prisms fixed rigidly to displacement levers - Google Patents
Rotating disc profile measuring system - uses laser beams deflected by pentagonal prisms onto right angled prisms fixed rigidly to displacement leversInfo
- Publication number
- FR2432158A1 FR2432158A1 FR7822382A FR7822382A FR2432158A1 FR 2432158 A1 FR2432158 A1 FR 2432158A1 FR 7822382 A FR7822382 A FR 7822382A FR 7822382 A FR7822382 A FR 7822382A FR 2432158 A1 FR2432158 A1 FR 2432158A1
- Authority
- FR
- France
- Prior art keywords
- prisms
- right angled
- fixed rigidly
- displacement
- levers
- 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 abstract 3
- 230000003287 optical effect Effects 0.000 abstract 2
- 239000011159 matrix material Substances 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
- G01B11/245—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures using a plurality of fixed, simultaneously operating transducers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0011—Arrangements for eliminating or compensation of measuring errors due to temperature or weight
-
- 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
- G01D5/28—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 deflection of beams of light, e.g. for direct optical indication
- G01D5/30—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 deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The system utilises the unique rectilinear properties of laser light to obtain a metrologically precise measurement of deviations from perfect shape. Mechanical sensors using articulated levers transform translation and inclination movements into electrical signals via optical links. Laser beam components (F1 - F5) are deflected by pentagonal prisms (8, 9, 19, 26) onto right angled prisms (13-16, 25) fixed rigidly to the displacement levers Reflected beams are detected by photo cells (17-20, 27) providing analogue signals which are functions of prism displacement. Laser, beam splitters and photo cells are kept stable on an optical bench (12). Signals proportional to axial and radial deviations which are sufficient to define the profile of the plate, can constitute matrix elements in computer-solvable simultaneous linear equations to calculate plate profile in particular angular orientations.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7822382A FR2432158A1 (en) | 1978-07-28 | 1978-07-28 | Rotating disc profile measuring system - uses laser beams deflected by pentagonal prisms onto right angled prisms fixed rigidly to displacement levers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7822382A FR2432158A1 (en) | 1978-07-28 | 1978-07-28 | Rotating disc profile measuring system - uses laser beams deflected by pentagonal prisms onto right angled prisms fixed rigidly to displacement levers |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2432158A1 true FR2432158A1 (en) | 1980-02-22 |
FR2432158B1 FR2432158B1 (en) | 1980-12-05 |
Family
ID=9211319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7822382A Granted FR2432158A1 (en) | 1978-07-28 | 1978-07-28 | Rotating disc profile measuring system - uses laser beams deflected by pentagonal prisms onto right angled prisms fixed rigidly to displacement levers |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2432158A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2579745A1 (en) * | 1985-03-28 | 1986-10-03 | Usinor | Method and device for measuring the dimensions of a body of revolution and their applications |
FR2620817A1 (en) * | 1987-09-17 | 1989-03-24 | Ngk Insulators Ltd | METHOD FOR MEASURING THE CONTOUR CONFIGURATION OF AN OBJECT DEFINED BY MANY CYLINDRICAL SURFACE PARTS |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB947209A (en) * | 1959-02-06 | 1964-01-22 | Gen Precision Inc | Improvements in optical goniometers |
FR1575662A (en) * | 1968-04-03 | 1969-07-25 | ||
DE1548350A1 (en) * | 1966-02-22 | 1970-05-21 | Wenczler & Heidenhain | Optical straight line |
FR2244154A1 (en) * | 1973-09-17 | 1975-04-11 | Strasmann Prazisions Werkzeug |
-
1978
- 1978-07-28 FR FR7822382A patent/FR2432158A1/en active Granted
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB947209A (en) * | 1959-02-06 | 1964-01-22 | Gen Precision Inc | Improvements in optical goniometers |
DE1548350A1 (en) * | 1966-02-22 | 1970-05-21 | Wenczler & Heidenhain | Optical straight line |
FR1575662A (en) * | 1968-04-03 | 1969-07-25 | ||
FR2244154A1 (en) * | 1973-09-17 | 1975-04-11 | Strasmann Prazisions Werkzeug |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2579745A1 (en) * | 1985-03-28 | 1986-10-03 | Usinor | Method and device for measuring the dimensions of a body of revolution and their applications |
FR2620817A1 (en) * | 1987-09-17 | 1989-03-24 | Ngk Insulators Ltd | METHOD FOR MEASURING THE CONTOUR CONFIGURATION OF AN OBJECT DEFINED BY MANY CYLINDRICAL SURFACE PARTS |
BE1003159A3 (en) * | 1987-09-17 | 1991-12-17 | Ngk Insulators Ltd | METHOD FOR MEASURING ARTICLE CONTOUR CONFIGURATIONS. |
Also Published As
Publication number | Publication date |
---|---|
FR2432158B1 (en) | 1980-12-05 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |