The following table lists the values in respect of

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Unformatted text preview: ply an output signal unless the input signal is above a certain threshold. © Festo Didactic GmbH & Co. KG • FP 1110 159 11. Physical fundamentals With the signal provided by the triggering stage, the output stage is switched. Depending on the switching status, the threshold of the triggering stage is also slightly changed. Thus, the hysteresis of the proximity sensor is created. An output signal is created if, with the increasing attenuation of the proximity sensor, the rectified amplitude signal falls below the triggering threshold. With the decreasing attenuation, a higher amplitude of oscillation is required to switch off the output signal. In this case the triggering threshold is slightly higher than in the former case and the proximity sensor indicates hysteresis. Switching distance and conductivity Amongst other things, the switching distance depends on the electrical conductivity of the metal to be detected. The following table lists the values in respect of the conductivity of different metals and a...
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This note was uploaded on 11/01/2012 for the course CHEMICAL 102 taught by Professor Jamesrodriguez during the Spring '12 term at Universidad Politécnica de Cartagena.

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