| 1. | Based on the character of ultrasonic spectrum analysis , considering the affection of the circuit responsion of checking system , coupling state , position of checking transducer , this thesis established reasonable ultrasonic spectrum analysis method . using this method , several kinds of linear spectrum ( such as phase amplitude spectrum , phase power spectrum ) were researched and discussed
本文根据超声波频谱分析的特点，综合考虑了检测电路响应、耦合状况、探头位置等因素的影响，制定出了一套合理的超声波频谱分析方法，并用此方法对几种线性谱(如相位幅度谱、相位功率谱等)进行了研究和探讨。 |
