Functional Description of the Laser Measurement Technology
The laser distance measurement devices of the model LE and LLB sense linear movements and convert them into electrical signals. With these sensors longer distances can be captured contactless and suitable for closed-loop control.
The laser diode within the device sends a modulated light beam which is reflected by the reflector of an even surface and again is received by the detector within the device. The distance can be calculated by taking the phase difference between the sent and received light beam.