Device for vibration frequency measurement of a tensioned drive belt and method for carrying out the vibration frequency measurement

摘要

Apparatus for hand-held vibration frequency measurement of a tensioned drive belt with a Doppler radar module which transmits a transmission beam with a transmitting antenna against a vibrating surface of the drive belt and receives with a receiving antenna the reflected from the surface receiving beam and evaluates according to the Doppler principle, wherein in the Vibration sensor in addition to the Doppler radar module additionally an acceleration sensor and a microphone are arranged, the signals of which can be offset with each other.