Measuring system with pulsed active one width light sensor for receiving the reflected by a moving object pulsed ir / uv - light

摘要

Measuring system with at least one pulsed one width light sensor (it) with infrator / ultraviolet - transmitter (2) and ir / uv - receiver (1) for receiving the reflected by a moving object pulsed ir / uv - light, characterized in that at the beginning of the width measuring distance of the one light sensor (it) an ir / uv - receiver (1.1) and at a distance to this end, an ir / uv - transmitter (2.1) arranged in such a way that the ir / uv - transmitter (2.1) with a pulse generator (ig) which is in connection in a timed manner, into a periodic pulses in addition to - and off phase (t1, t2), whereby the off phase (t2), a time multiple of the anphase (t1) is that, with each ir / uv - receiver (1.1, 1.2,...), an amplifier (v1, v2,...) and an evaluation circuit (c) are connected and in that for the reduction of extraneous light of the ir / uv - receiver (1.1) as a tube (r) with a longitudinal extension of a multiple of the inner tubes by knife (rd) is designed, and, by means of the evaluation circuit (c) are evaluated, the received pulses.