Rotational Vibrometer

Polytec's rotational vibrometers are advanced non-contact angular velocity and displacement sensors, perfect for measuring rotating structures such as crankshafts, axles and pulleys. Controlling drivetrain torsional vibrations is critical to designing reliable vehicles, electric power generators and aircraft propulsion systems. Rotational vibration data used in the early stages of product development has enabled automotive design and test engineers to skillfully reduce engine noise and to substantially increase product durability. A large standoff distance makes positioning the laser probe fast, safe and convenient and enables the precision measurement of operating machinery at several locations without interruption.

Conventional contact transducers are subject to wear and slippage, leading to unplanned maintenance. In contrast, the Polytec Rotational Vibrometer is non-contact and can be remotely located, limiting exposure to harsh conditions and reducing maintenance. Another advantage of the Polytec design is its ability to measure directional changes, torsional transients and rotational vibrations around the rest position.