| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a diagnostic method for determining the normality or abnormality of equipment in checking by utilizing the proper regression coefficient of a self-regression model of sound signals generated by equipment such as a rotary machine. Ž<P>SOLUTION: The method for diagnosing integrity in equipment such as a rotary machine by sound signals is characterized in that sound signals generated during the operation of the equipment are measured, the proper regression coefficient of a self-regression model is calculated and stored by using the least-squares method and maximum entropy method, the regression coefficient is applied to the sound signals generated during the equipment is checked and measured to calculate a residual, and the normality or abnormality of the equipment is determined according to the comparison of the magnitude of the residual. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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