In this way it is possible to achieve a digital

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Unformatted text preview: ss fibre optics • Wide beam diffuse sensor for the detection of cling film or glass • Special sensors for monitoring drill breakage (starting from a drill diameter of 1.5 mm) • Sensors for data transmission • Diffuse sensors for reading bar codes • Explosion-proof designs, NAMUR versions • Designs for connecting up to 2 or 3 fibre optic adaptors to a sensor module 240 © Festo Didactic GmbH & Co. KG • FP 1110 15. Special designs and variants of proximity sensors 15.2.1 Slotted light barrier sensors Slotted barrier sensors are through-beam sensors, in which the emitter and the receiver are mounted opposite each other in a single U-shaped housing. They are often available in low cost versions in plastic housings. 1 2 Emitter (1) Receiver (2) Fig. 15.2.1: Slotted light barrier sensor The interruption of the light beam within the fork is evaluated as the switching signal. Slotted barrier sensors are available in a range of slot widths between 3 mm and 50 mm. These sensors are for instance used for measuring rotary or linear movements, whereby a sl...
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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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