The paper analyzes and researches the possibility and measure of photoelectric-inspect of sound frequency by phase
modulating. Analyzing the 4-Frame Phase Shifting analyzing method used in sound frequency photoelectric-inspect. It is
verified that vibrator film and the position of exploring instrument determines inspecting precision. This step directly
influences sound frequency spectrum and dynamic range. A kind of vibrator film choosing reference gist has been
brought up. This inspecting method can be used in sound information analyzing.
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 précising 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.
We have detected the fluorescence characteristics of two aromatic pollution materials - Zyongyuan Crude oil and anthracene by OMA and obtained their fluorescence time. By analyzing their spectra properties, we find that there is a clear order. Long fluorescence wave occurs earlier than short fluorescence wave. This solution is also analyzed and explained by atomic energy levels theory.