| 摘要 |
A method and arrangement for monitoring an industrial device, such as a machine or a system, wherein the device comprises a rotating component and a bearing, wherein acoustic emissions of the device in a first frequency band in the ultrasound range are recorded, acoustic emissions of the device in a second frequency band in the ultrasound range are recorded, the first frequency band and the second frequency band being non-overlapping, where at least one characteristic value for the condition of the bearing is determined from the acoustic emissions of the device in the first frequency band, and where at least one characteristic value for a process variable of a process executing in the device is determined from the acoustic emissions of the device in the second frequency band such that monitoring of an industrial device is further improved while maintaining or reducing the complexity of the measurement. |
