Abstract: The invention relates to a method and device for determining the torque applied upon the rotary body that can be driven about an axis of rotation, comprising a first and a second sensor, which are respectively arranged with a fastening element at the rotary body at an axial distance from each other, and which comprise rings surrounding the rotary body comprising fields showing alternating different signal behaviors, with one transmitter being allocated jointly to the first sensor and the second sensor, which jointly accept from the two sensors an output signal, from which a square-wave signal is formed, from which in a first step from the flank distances of certain inclining and/or declining flanks of the square-wave signal constant values Ti, are formed, which are dependent on the geometry of the rings of the two sensors, and variable values ?i, which are dependent on the torque applied.

Abstract: The invention relates to a method and device for determining the torque applied upon the rotary body that can be driven about an axis of rotation, comprising a first and a second sensor, which are respectively arranged with a fastening element at the rotary body at an axial distance from each other, and which comprise rings surrounding the rotary body comprising fields showing alternating different signal behaviors, with one transmitter being allocated jointly to the first sensor and the second sensor, which jointly accept from the two sensors an output signal, from which a square-wave signal is formed, from which in a first step from the flank distances of certain inclining and/or declining flanks of the square-wave signal constant values T are formed, which are dependent on the geometry of the rings of the two sensors, and variable values a which are dependent on the torque applied.

Abstract: The invention relates to a method and a device for determining the torque exerted on a body of revolution 2 capable of being driven rotatably about an axis of rotation 1. The device possesses a first and a second measurement generator 3 and 4 which are arranged on the body of revolution 2 at an axial distance from one another and which consist of rings 7 and 8 radially surrounding the body of revolution 2 and composed of fields having an alternately different signal behavior. At the same time, the number of fields of the two rings 7 and 8 is identical. The first measurement generator 3 is assigned a first measurement transducer 9 and the second measurement generator 4 is assigned a second measurement transducer 10, the measurement transducers both supplying output signals, from which first and second square-wave signals 11 and 12 are formed, the torque being determined from the distances between edges of the first and second square-wave signals over one complete revolution of the body of revolution 2.