Optical rotational moment sensor for a rotating shaft, comprises a scale unit, a detection unit, and an evaluation unit.

摘要

An optical rotational moment sensor for a rotating shaft, comprises a scale unit (30) with a primary double scale (31), a detection unit (40) for the optical determination of a Moire region, and an evaluation unit. The scale unit consists of primary and secondary scales located about the shaft, which have a carrier (33,34). The detection unit is used on a stationary shaft, and the evaluation unit produces an image.