| 摘要 |
PURPOSE:To enhance detecting accuracy, by acknowledging true or false of a signal by the difference in signal input times from warning signal generators. CONSTITUTION:Warning input times from signal generators 1-10 are measured in an operator 12 and compared with data which is inputted in advnace, and computation is performed. Thus the true or false of warning is judged. When it is judged that the warning is true, a multichannel data recorder 14 and an automatic stored data selecting device 13 are operated by a command signal S1. Based on another signal S2, the selecting device 13 inputs and records a plurality of following channels in a recorder 14, following the signal generator which has generated the first warning signal. Since perfect correlation exists between the oscillator which has issued the warning and the recorder 14 which records the warning, the device can be made compact and simplified and the continuous monitoring of abnormal sound can be performed. Therefore, the position of a loose part can be determined and the magnitude of energy of the abnormal sound and the like can be accurately measured. |
