Resolvers

Rotary Variable Differential Transformers (RVDT)

A Rotary Variable Differential Transformer (RVDT) is an electromechanical transducer that provides a variable alternating current (AC) output voltage that is linearly proportional to the angular displacement of its input shaft. When energized with a fixed AC source, the output signal is linear within a specified range over the angular displacement.

RVDT’s utilize brushless, non-contacting technology to ensure long-life and reliable, repeatable position sensing with infinite resolution. Such reliable and repeatable performance assures accurate position sensing under the most extreme operating conditions.

Moog offers six frequency optimized RVDT’s in a basic size 8 configured housing. Each is designed to operate at a specific frequency. Frequency optimization provides the benefit of an increased operating range of angular displacement with a reduction in sensor size and weight.

Features

  • Brushless, non-contacting technology
  • Repeatable position sensing with infinite resolution
  • Standard size 8 housing

Benefits

  • Long life
  • High reliability
  • Repeatable performance
  • Frequency optimization

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Typical Applications

  • Flight control / navigation
  • Flap actuators
  • Fuel control
  • Cockpit control

Rotary Variable Differential Transformers (RVDT) Data Sheet

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