Electronic control liquid crystal photointerrupter array and preparation method thereof

The invention relates to an electronic control liquid crystal photointerrupter array and a preparation method thereof. The electronic control liquid crystal photointerrupter array comprises a glass substrate, an ITO conducting film, a polymer dispersed liquid crystal grating and a driving power source, wherein, the ITO conducting film is coated on the inner surface of the glass substrate, the polymer dispersed liquid crystal grating is arranged between conducting films, and a driving electric field generated by a driving power source is applied to the conducting films. The electronic control liquid crystal photointerrupter array can achieve the function of fast chopping modulation on multipath array input light under different frequencies, and has the characteristics of electric field regulation and control and high response speed; and especially in a corresponding optical experimental system, such as a multi-light-channel and frequency-overlapping Doppler analysis and experiment system, the electronic contro