The invention is in use for detecting
solid impurity of liquid in
bottle full automatically. The method includes procedures: driving arrangement accelerates rotation of
bottle body moving in uniform speed to a value of rotation setup; then, braking the
bottle body rapidly, transmitting
light beam to the bottle body, and taking picture for the bottle body by camera synchronous forwarded with the bottle body; analyzing
signal collected by camera, and when abnormal instance occurs, eliminating
signal is generated. The
system includes detection worktable, strap
friction drive device, detection device, and analyzing and controlling module etc. Strap
friction drive device includes driving wheel, driven wheel, follow up
pulley and friction belt. Comparing with prior art, the invention overcomes disadvantages of slow detection speed,
complex system structure, low quality of detection, possessing advantages of safety and high consistency of detection.