An optical fibre sensor includes an elongate optical fibre and a casing for the fibre, the casing including a first elongate, flexible and substantially inextendable strip portion and a second elongate, flexible strip portion arranged so that the fibre therebetween is sandwiched between the strip portions,...http://www.google.fr/patents/US5084615?utm_source=gb-gplus-shareBrevet US5084615 - Optical fibre sensors with strip portions having a series of transverse ridges
Optical fibre sensors with strip portions having a series of transverse ridges
