To detect the presense of metallic rod in a slot which is present in mould case for plastic moulding. Optic fibre sensor used for space constraint. (E32-D33, E3X-DA11-S)
Optical fibres are used for mounting places of space constraint and also high temperature with fibre bending flexibility. This sensor can also be used as distance settable sensor hence the rod can be detected and its absence noted as background influence is rejected.
