Balluff Gmbh

Reinhard Droxler

Manfred Jagiella

Sorin Fericean

Albert Dorneich

Andrea Hiller-Brod

Markus Fritton

Daniel Kraeter

Daniel Kräter

Norbert Fend

A device for detecting a twist angle and/or a torque of a shaft occurring on the shaft and methods for operating the device uses at least one first encoder and at least one second encoder at a predefined spacing therefrom. Each encoder influences at least one coil parameter, is associated with at least a part of the circumference of the shaft, and has at least one track having at least one period per revolution of the shaft. At least first and second inductive sensors scan the first and second encoders, respectively. Each inductive sensor provides a respective sensor signal reflecting at least one measure for the rotational angle of the shaft within the period, and a difference ascertainment unit ascertains and provides the twist angle of the shaft as an angle difference of the two rotational angles detected by the inductive sensors.

Device for detecting the twist angle of a shaft and/or a torque occurring on the shaft and methods for operating the device

In order to improve a position measuring system comprising a transmitter and a sensor which comprises at least one inductive element, to which the transmitter is coupled electromagnetically, wherein sensor and transmitter can be positioned relative to one another and the at least one inductive element is arranged on a support so as to be areally extended, such that a great number of possibilities for its use result it is suggested that the support with the at least one inductive element be designed to be as least partially flexible.

Position measuring system having an inductive element arranged on a flexible support

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Eningen, Germany

Reinhard Droxler