| 1. | On the basis of practically achieved low - frequency laser - vibration measuring - system , this thesis analyses the principle of laser - vibration measuring - system , the optical factors which have effect on contrast degree of interference fringe , the optical - electric transformation factors which have effect on measuring accuracy , the important of filter for improving the accuracy in the absolute calibration and the outward vibration which has effect on system accuracy , etc . in chapter one , the background of laser measuring vibration , and then followed by its current status , is introduced and analyzed
本论文根据实际研制的激光测振仪系统，从提高激光测振仪精度的角度出发介绍了激光测振仪的原理，并详细地剖析了光路对测振仪干涉条纹对比度的影响、光电转换对测量精度的影响、光电信号的滤波放大以及外界振动对测振仪系统的影响等技术问题。 |
