FR2292957A1 - Barriere lumineuse a sortie analogique - Google Patents
Barriere lumineuse a sortie analogiqueInfo
- Publication number
- FR2292957A1 FR2292957A1 FR7536382A FR7536382A FR2292957A1 FR 2292957 A1 FR2292957 A1 FR 2292957A1 FR 7536382 A FR7536382 A FR 7536382A FR 7536382 A FR7536382 A FR 7536382A FR 2292957 A1 FR2292957 A1 FR 2292957A1
- Authority
- FR
- France
- Prior art keywords
- light source
- strip material
- edge detection
- detector system
- material edge
- 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
- 230000004888 barrier function Effects 0.000 title 1
- 238000003708 edge detection Methods 0.000 title 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 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
- G01D5/342—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 the sensed object being the obturating part
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742456766 DE2456766C3 (de) | 1974-11-30 | Fotoelektrische Einrichtung zur Erfassung der Sollage einer Bandkante |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2292957A1 true FR2292957A1 (fr) | 1976-06-25 |
| FR2292957B3 FR2292957B3 (fr) | 1978-09-01 |
Family
ID=5932205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7536382A Granted FR2292957A1 (fr) | 1974-11-30 | 1975-11-27 | Barriere lumineuse a sortie analogique |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2292957A1 (fr) |
-
1975
- 1975-11-27 FR FR7536382A patent/FR2292957A1/fr active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| FR2292957B3 (fr) | 1978-09-01 |
| DE2456766B2 (de) | 1977-03-31 |
| DE2456766A1 (de) | 1976-08-12 |
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