Must be taken into account fig 647 shape and position

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Unformatted text preview: o-reflective sensors for lateral approach • Capacitive proximity sensor or ultrasonic proximity sensor for frontal approach. © Festo Didactic GmbH & Co. KG • FP 1110 6. Optical proximity sensors 6.4.4 Examples of application 1 correct (1) 2 wrong (2) Fig. 6.4.6: Monitoring the position of a workpiece by means of a diffuse sensor Careful adjustment of sensitivity on the potentiometer is required, whereby tolerances with regard to differences in material, dirt, etc. must be taken into account. Fig. 6.4.7: Shape and position checking using diffuse sensors A connected controller checks whether all sensors respond (the proximity sensor outputs are connected according to AND-logic). For high accuracy and small distances, diffuse sensors with fibre-optic cables should be considered. © Festo Didactic GmbH & Co. KG • FP 1110 91 6. Optical proximity sensors 6.5 Optical proximity sensors with fibre-optic cables 6.5.1 Function description Optical proximity sensors with fibre-optic cable adaptors are used if conventional d...
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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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