This experiment method has some reference value on testing the 3-dimension modal shapes of a structure by using a single scanning laser vibrometer.
该实验方法对于采用单头激光测振仪测试结构的三维整体模态具有一定的参考价值。
With the laser scanning vibrometer, based on the Doppler effect, the muzzle vibration velocity is measured.
炮口振动速度测试可以采用激光测振仪，它是基于多普勒原理的激光非接触测振技术而研制的。
With the laser scanning vibrometer, based on the Doppler effect, the muzzle vibration velocity is measured.
炮口振动速度测试可以采用激光测振仪，它是基于多普勒原理的激光非接触测振技术而研制的。
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