| 摘要 |
A belt monitoring apparatus for monitoring a belt 16 in a pulley system comprising at least two pulleys around which the belt is fitted, comprises a first sensing device 32 including a transmitter 42 configured to transmit a wireless signal and a receiver 44 configured to receive the wireless signal reflected, in use, by a span of the belt, and to produce a corresponding output signal, and further includes processing means configured to detect in the output signal a signal component caused by transverse vibration of the belt span and to determine the frequency of the transverse vibration from the span vibration signal component. A second sensing device 38 may be included to monitor teeth 18 on the belt for speed and tooth position for example, using a wireless signal. |
