The measurement angle of the RSC 2800 Series of noncontacting rotary sensors is determined by detecting variation in the orientation of a magnetic field from a magnet attached to the shaft.
Custom circuitry performs field-orientation detection and filtering while providing an analog output proportional to angular position. Features of the sensors include <±0.5% independent linearity; 30 to 360° electrical measurement angles; a lifespan of more than 50 million movements, repeatability of <0.03% of output signal range; and operation in 40 to 85°C. The sensors are not affected by static or dynamic shaft loads of up to 20 N in both radial and axial directions.
Novotechnik U.S. Inc., 155 Northboro Rd., Southborough, MA 01772, (508) 485-2244, novotechnik.com