| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method and device for evaluation by which the speed and reliability of diagnostic work can be improved by reducing the burden imposed on the analysis work of vibration signals detected from an installation containing one or a plurality of sliding members. SOLUTION: The device 1 for evaluation is provided with an A/D-converting means 9 which converts analog signals of sounds or vibrations generated by the installation 3 into digital signals, and an arithmetic processing means 13 which generates actually-measured frequency spectrum data by analyzing the output of the means 9 and, at the same time, diagnoses the presence/absence of abnormality in the installation 3 from the presence/absence of peaks in the actually-measured frequency spectrum data to the first order, second order, and fourth order values of a frequency component generated due to the abnormality of the installation 3.</p> |
