RVDT displacement transducer
±10°, ±30°, ±40°, ±60° | SX27RV
SENSOREX MEGGITT
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.
The core may rotate freely, but in practice measurements are made within
± 40° where the non linearity is 0.5% of full scale. Linearity improves
as the measurement range is reduced. For example over ± 5° non linearity
is typically better than ± 0.1% FS.
The RVDT must be used in conjunction with an oscillator-demodulator signal
conditioner. This RVDT is compatible with any of the SENSOREX LVDT conditioners.
