Measurement of chicken blood velocity using dual beam mode of laser Doppler anemometry by optical fiber module

In this study, the dual beam mode of the laser Doppler anemometry (LDA) module with optical fibers is designed, which the light of particle scattering is detecting by the photodetector set at the same side with the fiber module. The photodetector, which collect the scattering light of dilute chicken blood cell may measure the blood velocity according to Doppler frequency.