Super-flat non-contacting rotary sensor

14 January 2014

Variohm EuroSensor has introduced the Novotechnik RFD series super-flat non-contacting hall effect rotary sensor.

Hall effect sensors yield absolute measurements that are reliable even under tough environmental conditions.  Their relatively low-cost, in comparison with other measurement technologies, makes them suitable for many applications in machine engineering and plant design, as well as for mobile applications. 

The new sensors were developed in response to the increasing demand for simple, flat, and affordable rotary sensors. The non-contacting Hall effect-based components are mechanically and electrically compatible with their predecessor, the RFA, yet distinctly more economically priced. These reliable and powerful sensors are suitable for measurement angles of up to 360¡.  They offer a 12-bit resolution and an independent linearity of +/- 0.5%, and they are available in single, partially, or completely redundant designs.

The extremely flat sensor housing measures just 7mm in height. It is constructed from thermoplastic material, and its injection moulded screw mounts are reinforced with brass bushings. The matching position transducer also features a small footprint, with a diameter of 22.2mm and a height of 5.6mm.  It, too, is constructed of a thermoplastic material with injection moulded brass bushings. Lateral installation offsets of +/- 1.5mm will not compromise measurement integrity.  

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