| 摘要 |
A device to determine an absolute rotation angle of a rotary shaft ( 14 ) has a first measurement arrangement ( 10 ) to measure a rotation angle in a restricted first measurement range, and a second measurement arrangement ( 12 ) to determine an absolute angle range. The first measurement arrangement ( 10 ) includes a rotor ( 16 ), coupled to the rotary shaft ( 14 ), and a carrier which is stationary in relation to the rotor ( 16 ). Coded zones ( 18 ) are arranged either on the rotor ( 16 ) or on the carrier. The coded zones ( 18 ) are distributed in the peripheral direction with respect to the rotary shaft ( 14 ). At least one first sensor ( 20 ) is arranged on the carrier or on the rotor ( 16 ), respectively. The first sensor ( 20 ) detects a coding of the coded zones ( 18 ) when the rotary shaft ( 14 ) rotates.
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