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sensor are and the environmental factors to be taken into account. Once all these
requirements have been established, a suitable proximity sensor can be selected
from the various alternative products on offer.
A systematic listing of the above mentioned criteria is set out overleaf. 9.1
Object material Electrically conductive material
– Stainless steel
– Metal-coated, electrically non-conductive materials, depending on specific
– Graphite © Festo Didactic GmbH & Co. KG • FP 1110 137 9. Selection criteria for proximity sensors Electrically non-conductive material
– Cardboard, paper
Nature of non-conductive materials
– Optically transparent or non-transparent
– Optical reflex ability of surface (absorbent to reflecting)
– Homogenous, non-homogenous (e.g. composite material)
– Porous, fibrous
– Solid, liquid, loose material
– Dielectric constant
Size and shape
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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.
- Spring '12