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Rotary encoder | Drehcodierer | Encodeur rotatif

Patentnummer:EP2343510B1
IPC Hauptklasse:G01D0005347
Anmelder:
Erfinder:
Anmeldung:17.12.10
Offenlegung:24.12.09
Patenterteilung:25.07.18

Abstract / Hauptanspruch
A rotary encoder (100) includes a scale portion (201) in which a first slit array (202) having slits, the number of which is S1, and a second slit array (203) having slits, the number of which is S2, are formed concentrically with respect to a center point (220), and a sensor unit portion (302,304) including a first sensor (311,313) that detects a signal from the first slit array in a first read region (211,215) and a second sensor (312,314) that detects a signal from the second slit array in a second read region (212,216). The rotary encoder meets R1 min/R2max≤S1/S2≤R1max/R2min, where R1max and R1min are respectively the maximum and minimum values of a distance from the center point in the first read region and R2max and R2min are respectively the maximum and minimum values of a distance from the center point in the second read region.

EP2343510B1


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