ES2024278A6 - Method and optical sensor for determining the position of a moving body - Google Patents
Method and optical sensor for determining the position of a moving bodyInfo
- Publication number
- ES2024278A6 ES2024278A6 ES9001478A ES9001478A ES2024278A6 ES 2024278 A6 ES2024278 A6 ES 2024278A6 ES 9001478 A ES9001478 A ES 9001478A ES 9001478 A ES9001478 A ES 9001478A ES 2024278 A6 ES2024278 A6 ES 2024278A6
- Authority
- ES
- Spain
- Prior art keywords
- optical sensor
- signals
- determining
- displacements
- sum
- 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 - Lifetime
Links
- 230000003287 optical effect Effects 0.000 title abstract 4
- 238000006073 displacement reaction Methods 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the measurement of displacements. An optical sensor comprises a collimated source 2 fixed to a moving object and a series of optical detectors L1, L2...Ln aligned on a fixed body, in the direction of the movement, directly facing the source photodiodes convert the optical signals picked up into electric signals a computer takes the sum of the electric signals and a sum of the products of these signals multiplied by a constant coefficient, then it takes the ratio of these sums and compares the ratio with a stored scale of ratios which gives the position of the moving object. Main application: measurement of displacements.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8920700A IT1229387B (en) | 1989-05-30 | 1989-05-30 | METHOD AND OPTICAL SENSOR FOR DETERMINING THE POSITION OF A MOBILE BODY. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2024278A6 true ES2024278A6 (en) | 1992-02-16 |
Family
ID=11170758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES9001478A Expired - Lifetime ES2024278A6 (en) | 1989-05-30 | 1990-05-29 | Method and optical sensor for determining the position of a moving body |
Country Status (3)
Country | Link |
---|---|
ES (1) | ES2024278A6 (en) |
FR (1) | FR2647897B1 (en) |
IT (1) | IT1229387B (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2266142B (en) * | 1992-04-15 | 1996-09-25 | Butler Newall Ltd | Improvements in or relating to methods and control systems for registering a datum position between two relatively movable components of a machine tool |
FR3112851B1 (en) | 2020-07-24 | 2022-09-09 | Univ Aix Marseille | Device and method for optical position detection |
FR3132154B1 (en) * | 2022-01-21 | 2024-02-09 | Univ Aix Marseille | Optical sensing device user interface |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA836137A (en) * | 1963-05-03 | 1970-03-03 | Westinghouse Electric Corporation | Current responsive apparatus for high voltage circuits |
GB1551046A (en) * | 1975-08-27 | 1979-08-22 | Bell & Howell Ltd | Apparatus for determining the position of a spot of light on a plane surgace |
GB1536022A (en) * | 1977-01-10 | 1978-12-13 | Integrated Photomatrix Ltd | Measurement of position using an array of photosensitive elements |
JPS5863801A (en) * | 1981-10-13 | 1983-04-15 | Komatsu Ltd | Displacement detector |
GB2156972B (en) * | 1984-04-06 | 1988-07-06 | Plessey Co Plc | Improvements relating to the manufacture of optical devices |
-
1989
- 1989-05-30 IT IT8920700A patent/IT1229387B/en active
-
1990
- 1990-05-28 FR FR9006568A patent/FR2647897B1/en not_active Expired - Lifetime
- 1990-05-29 ES ES9001478A patent/ES2024278A6/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IT8920700A0 (en) | 1989-05-30 |
IT1229387B (en) | 1991-08-08 |
FR2647897B1 (en) | 1994-12-30 |
FR2647897A1 (en) | 1990-12-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20101018 |