Torqsense sensor reduces servicing times for aircraft component repair company
Sensor Technology
Torqsense non-contact torque sensor
A system incorporating a Torqsense non-contact torque sensor is being used by an aircraft-system and component-repair company to reduce servicing times and increase flying hours .
The Torqsense non-contact torque sensor, which is being used within MEL Aviation’s fully automatic generator testing station, can be deployed instantly for high-performance acceleration and deceleration tests of aircrafts’ generators, according to the company.
Torqsense is a surface acoustic wave (SAW)-based device that measures the rotational speed of the input shaft, which defines the simulated speed profile.
Key product information
- In a Torqsense transducer, surface acoustic waves are produced by passing an alternating voltage across the terminals of two interleaved comb-shaped arrays, laid onto one end of a piezoelectric substrate
- A receiving array at the other end of the transducer converts the wave into an electric signal
- To measure the torque in a rotating shaft, two SAW sensors are bonded to a shaft at 45° to the axis of rotation
- When the shaft is subjected to torque, a signal is produced that is transmitted to a stationary pick-up via a capacitive couple comprising two discs — one of which rotates with the shaft, the other being static
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