FIELD: measurement equipment.
SUBSTANCE: invention relates to a sensor system comprising a wave guide. A diffraction lattice is available on a part of the wave guide. Also the wave guide comprises a coating, including polymer. Polymer comprises a chain, where an aromatic group and a chemical group are present, being selected from a group of sulfonyl groups, carbonyl groups, carbonate groups, fluorocarbon groups, siloxane groups, pyridine groups and amide groups.
EFFECT: high stiffness and high temperature resistance.
18 cl, 2 tbl, 7 dwg
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