When the frequency is low, the recorded acoustic amplitude value is high. So the evaluation result is reliable.
发现频率低时，由于记录到的声幅值较高，评价结果可靠。
2
Relationship between the evaluation parameters of sonic amplitude log and the evaluation parameters of CBL is discussed.
讨论了声幅测井与CBL方法评价指标的关系。
3
Based on the mechanism of input and damping, it is suggested that the vibration amplitude and threshold be taken as a criterion for evaluation vibration strength and anti-vibration ability.