Torsion Angle  Manufacturers, Traders, Suppliers

Our classic rotary angle sensors (also: angle sensor, inductive sensor or protractor) work on the principle of the differential transformer and are so-called RVDTs (Rotary Variable Differential Transformers). Each rotation angle sensor has a primary coil and two secondary coils. Since the transformer core operates without contact and is supported by high-quality ball bearings, the angle of rotation sensor operates practically wear-free. These inductive angle-of-rotation transducers require an AC voltage as supply voltage. The frequency of the TF supply therefore determines the measuring frequency of the system.
Other angle of rotation sensors from our company use an advanced inductive technology. The rotation angle sensor (also: angle sensor, inductive sensor or protractor) has here only one secondary coil. The stable, non-linear output signal is linearized by an ASIC and output as an analog voltage or current signal via integrated amplifiers. The customer can choose from a variety of different operating voltages and output signals. A special version is approved for use in hazardous areas in conjunction with a Zener barrier. These intrinsically safe EX rotary sensors and angle sensors are available for hazardous areas Ex II 1G, Ex II 1GD and Ex i/II M1/1GD.
Potentiometric angle of rotation sensors are available for OEM applications in small and medium quantities. These are divided into 2 groups by the mechanical structure. A so-called single-turn angle of rotation sensor measures 360 degrees and either has a mechanical stop at the end of the rotation or can also be supplied endlessly rotating. The measuring range of 360 degrees is controlled by a resistance change from 0 ... 5 kOhm is shown. Multi-turn rotary sensors measure beyond the 360 degree limit of one revolution. With a multi-turn angle sensor or angle sensors with 1800 degrees (i.e. 5 revolutions), the entire range of 1800 degrees is mapped via the resistance change of, for example, 5000 ohms. With this technique and selection, measuring angle of rotation is made easy.