PXI LVDT, RVDT, Resolver Simulator

New to our simulation product range is our PXI LVDT, RVDT, Resolver simulator. This product features active circuitry that generates a signal that can be used to exercise DUTs (devices under test) that use either LVDT (Linear Variable Differential Transformer), RVDT (Rotary Variable Differential Transformer), or Resolver (essentially a more accurate and versatile version of an RVDT) to measure motion and/or position.

About LVDTs 

Linear variable differential transformers (LVDT) are electrical transformer sensors to measure linear displacement. Driven by an AC excitation source, the LVDT generates a pair of AC output signals modulated according to the core's mechanical position (displacement).LVDTs have been widely used in applications such as power turbines, hydraulics, automation, aircraft, satellites, nuclear reactors, and many others. These transducers have low hysteresis and excellent repeatability.

About RVDTs 

Rotational variable differential transformers (RVDT) are a type of electrical transformer used for measuring angular displacement. The transformer has a rotor which can be turned by an external force. The transformer acts as an electromechanical transducer that outputs an alternating current (AC) voltage proportional to the angular displacement of its rotor shaft.

About Resolvers

Resolvers work similarly to an RVDT. The difference is that the primary and secondary coils on an RVDT are part of the stator. The rotator is the primary. The primary advantages of a resolver are improved accuracy and a full 360 degrees of motion. RVDTs are typically +/- 90 degrees.

Below you can see some of the range of modules available - there are 150 different configurations available, please refer to the data sheet to specify a configuration for your application

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