Optoelectric angle-measuring device

Details Optoelectric angle-measuring device Optoelectric angle-measuring device

G - Physics

01

D

G01D 5/347 (2006.01) H01L 27/30 (2006.01)

Patent

CA 2627906

An optoelectric angle-measuring device according to the invention has a code carrier having a position code (Cl) which can be detected optically as well as a scanning device in the form of a light-sensitive row or area for detecting the position code (Cl) and generating a position-dependent scanning signal. The scanning device which is in the form of a scanning film (Fl), in particular, surrounds the code carrier or the code carrier essentially completely surrounds the scanning device along a circumference. This provides an extremely accurate angle-measuring device by virtue of the fact that a large part of the position code (Cl), in particular even the entire position code (Cl), can be detected.

Le dispositif optoélectrique de mesure d'angle selon l'invention présente un support de code doté d'un code de position (C1) détectable optiquement ainsi qu'un dispositif de palpage sous la forme d'une ligne ou d'une surface photosensible qui détecte le code de position (C1) et crée un signal de palpage qui dépend de la position. Le dispositif de palpage, en particulier configuré comme feuille de palpage (F1), entoure le support de code ou le support de code chevauche le dispositif de palpage sensiblement complètement le long de sa périphérie. On obtient ainsi un dispositif de mesure d'angle extrêmement précis parce qu'une grande partie du code de position (C1), voire en particulier la totalité du code de positon (C1) peut être détectée.

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