
Other features include 1-mm resolution with absolute position to 100m, no moving parts, integral PLC/NC controls (SSI, Profibus, CAN, Interbus), and current position made immediately available. Distances to be measured are bridged by laser light. The beam is sent out from a laser diode that carries a modulated signal to a reflector. A phase delay enables recording of the distance. System can measure machine tolerances and placement of packages on any conveying system.