E ranging from infrared emissions and visible

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Unformatted text preview: light (780 nm to approx. 100 µm). Modulated light operation The utilisation of a modulated light beam. © Festo Didactic GmbH & Co. KG • FP 1110 201 13. Technical terms relating to proximity sensors Non-attenuating material Any material which does not significantly affect the characteristic values of an inductive proximity sensor. Non-flush fitting proximity sensors Sensors that require a free zone when fitted in metal or other materials in order to maintain the characteristic values of the proximity sensor. Operating reserve factor With optical proximity sensors the operating reserve factor β is derived from the quotient of the actual received optical signal power PE in relation to the necessary optical signal power PS at the switching level: β = PE/PS Photoelectronic sensor, optoelectronic sensor A term generally used for all devices which detect objects via a light source, i.e. ranging from infrared emissions and visible emission (wavelength range of 380 – 780 nm) to ultraviolet emission (UV). Photoreceiver The light receivi...
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