Rotation sensor choice R360: A resolver can be specified instead of an encoder. The resolver is an analog rotation sensor with two outputs labeled sine and cosine. The outputs can be passed through the same type of filters as strain gage or other analog sensor signals coming through the slip rings. Then the rotation signal will remain in phase with the sensor signals.
The resolver requires additional external electronics for excitation and for processing the outputs (see model RESSC-2-12V). A resolver is an absolute position sensor. Its’ angular position is known as soon as the excitation and electronics is turned on, an index pulse does not have to be located before the shaft position can be determined. Temperature range is -40F to +250F. Accuracy of the resolver is 0.25°.
System accuracy, which includes the electronics, is within 1°. The resolver option is most often used with 6-axis wheel load transducers.
