RVDT displacement transducer
SX27RV Meggitt Sensing Systems - Measurement Group

Rotary variable displacement transducers provide a sinusoidal output which is proportional to the angle within the limits of its linear range. When the primary is excited the position of the rotor will influence the magnetic flux of each secondary winding and thus the transformation ratio. The difference in voltage of the two secondaries will therefore be proportional to the relative angle of the primary.

The zero position is found where the secondary outputs are equal and opposite. This position is marked on the housing and spindle. Linearity improves as the measurement range is reduced.

The RVDT must be used in conjunction with an oscillator-demodulator signal conditioner. This RVDT is compatible with any of the SENSOREX LVDT conditioners. This RVDT is also available in intrinsically safe version, according to ATEX norm.