If dirt, dust, grease, humidity and other contaminants that commonly impair the performance of optical encoders are an application concern, magnetic rotary position sensors are possible alternative. With a total system cost normally far lower than the cost of an equivalent optical encoder or resolver, ams new version of its 47 series of magnetic rotary position sensors provides users an additional incentive.
Featuring its DAEC (dynamic angle error compensation) technology, ams’ new AS5047P produces high angle measurement accuracy even at very high rotation speeds. In the AS5047P, the maximum resolution of the ABI output is raised to 4,000 steps/1,000 pulses per revolution in decimal mode, and 4,096 steps/1,024 pulses per revolution in binary mode, so a wider range of optical encoders can now be replaced by a comparable magnetic position sensor.
An evaluation board for the AS5047P is available.
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