A turn axle eccentric velocities is measured by applying self-mixing interference in a diode laser.
应用半导体激光自混频干涉技术，对轴运动时的偏心速度进行了测量。
Study on theoretical models of laser self-mixing interference based on optical feedback effect is made in terms of weak optical feedback condition.
文章针对弱光反馈情形，对基于光反馈效应的激光自混合干涉模型进行了探讨。
The vibration characteristic of loudspeakers is investigated experimentally, based on the self-mixing interference effect of semiconductor laser diode.
基于半导体激光器的自混合干涉效应，通过实验研究了扬声器的振动特性。
To overcome the limitation of fringe counting and phase analysis, a new method based on the time-frequency analysis is proposed to process the self-mixing interference signal.
针对条纹计数法和相位分析法处理自混合干涉信号的不足，提出了一种基于时频分析的自混合干涉信号处理方法。
The frequency of the self-mixing interference signal is acquired by time-frequency analysis, and this frequency is equal to the Doppler shift, so the velocity of external object is gained easily.
该方法通过时频分析获得自混合信号频率随时间的变化，利用激光与外部物体相互作用后的多普勒频移与信号频率相等的关系，非常方便的获得了外部运动物体的速度历史信息。
Secondly, we focus on self-mixing speckle interference.
主要研究了自混合散斑干涉。
The characteristic of self mixing semiconductor laser, which can predigest the light path structure of the interference system, is introduced.
利用自己混合型半导体激光器的特点 ，大大简化了干涉系统的光路结构 。
The characteristic of self mixing semiconductor laser, which can predigest the light path structure of the interference system, is introduced.
利用自己混合型半导体激光器的特点 ，大大简化了干涉系统的光路结构 。
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