In this study, we have constructed laser Doppler velocimetry system using self-mixing effect. A theory of self-mixing effect has been theoretically described. Also we have compared the value of Doppler shifted frequency with the variaton of velocity. ...
In this study, we have constructed laser Doppler velocimetry system using self-mixing effect. A theory of self-mixing effect has been theoretically described. Also we have compared the value of Doppler shifted frequency with the variaton of velocity. Frequency dependence on the angle between the moving direction of rotating aluminum wheel and incident beam also has been proved. We can see that the Doppler signal shows a good linear relationship with velocity of rotating disk.