采用锤击法，利用冲击激励的宽频特性，研究了金属结构红外探测器的共振特性及影响振动噪声的力学因素。
Mechanical factors effecting on the vibration noise and resonance performance of IR detector were analyzed for the method of impact excitation using a hammer.
在盗油实时监测时，利用冲击激励产生的应力波到达两个检测传感器的波达时刻的差对冲击激励点进行定位。
The position where stealing happened is derived by calculating the difference between The Times at which the stress wave reaches the two adjacent detection transducers.
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