SL-MID Series_Proton Vietnam, Thiết bị đo đường kính cáp, Proton PTC Vietnam

Proton Products InteliSENS® SL-MID series speed and length gauges illuminate the measured surface with an interference pattern created by the intersection of two laser beams. The alternating bright and dark interference fringes modulate the light scattered by the object with a frequency proportional to the object speed. This scattered light is detected by a photodiode and the electrical signal digitally processed to determine the frequency and hence the speed. Object length is then calculated by integrating the speed measurement over time.