Device for the optoelectronic detection of physical measured variables

摘要

A device is described for the optoelectronic detection of physical measured variables, which has a sensor arrangement consisting of a plurality of fibre-optic limit-value transmitters, each limit-value transmitter being connected via an optical connection to a light transmitter and via an optical connection to a light receiver of a light transmitter and receiver arrangement. The individual light transmitters are here driven by an electronic control unit cyclically, in succession in time, to transmit an optical pulse in each case, and the optical signals from the limit-value transmitters fed to the light receivers, after their conversion into electrical signals as a pulse train, are joined together on a common lead and fed to an electronic amplifier unit. The electronic amplifier unit is connected via a transmission lead to a remote evaluation electronic unit, in which the pulse train is converted again into individual electrical pulses and used for indication.