Optoelectronic detection device, such as a light barrier, has an amplifier for amplification of the detection signal that has an adjuster with a non-linear response to allow for the non-linear response of the detector

摘要

Optoelectronic device for detection of objects within a monitoring zone comprises transmitter (3) and receiver (5). The output of the receiver is adjusted using an amplifier (10). The amplifier is adjusted using two adjustment elements. The first is a manual adjuster, the output of which acts as a control signal for the second element, which then adjusts the amplification factor of the amplifier. The second adjuster element can be a bipolar or field effect transistor or a varistor.