Researching of vibrator Detecting by double concerned Laser

摘要

The paper introduces a remote inspecting method of surface vibrator by double concerned laser. This inspecting method with two lasers has higher inspecting accuracy. It is designed for picking up higher precising sound vibrating information. Sound vibrating information are researched by analyzing the obtained opti-electric information. Its detecting precision is as high as laser' wavelength' level. It is designed on the basis of picking up sound technology derived from Michelson interference method.