Abstract: A rotary encoder comprises a sensor configured to measure an angle of a rotating shaft; and a controller configured to: determine a first angle of the rotating shaft at a first time; determine a second angle of the rotating shaft at a second time; calculate an angular velocity based on: 1) an angular difference between the first angle and the second angle; and 2) a time difference between the first time and the second time; and transmit an output packet comprising the angular velocity.

Abstract: A rotary encoder comprises a sensor configured to measure an angle of a rotating shaft; and a controller configured to: determine a first angle of the rotating shaft at a first time; determine a second angle of the rotating shaft at a second time; calculate an angular velocity based on: 1) an angular difference between the first angle and the second angle; and 2) a time difference between the first time and the second time; and transmit an output packet comprising the angular velocity.

Abstract: A rotary encoder comprising a magnet, AMR or GMR sensors and an evaluation means. The AMR or GMR sensors are arranged to generate two signals that unambiguously encode the rotary position of the magnet within a predetermined range of rotary positions and a direction of rotation of the magnet. The evaluation means is arranged to derive single-turn and multi-turn information solely from the signals. The encoder is arranged to be switched to a power saving state for a predetermined period of time, to be at least partially reactivated thereafter and to compare a current value derived from the signals with a stored previous value derived from the signals.

Abstract: A rotary encoder comprising a magnet, AMR or GMR sensors and an evaluation means. The AMR or GMR sensors are arranged to generate two signals that unambiguously encode the rotary position of the magnet within a predetermined range of rotary positions and a direction of rotation of the magnet. The evaluation means is arranged to derive single-turn and multi-turn information solely from the signals. The encoder is arranged to be switched to a power saving state for a predetermined period of time, to be at least partially reactivated thereafter and to compare a current value derived from the signals with a stored previous value derived from the signals.