Patent ID: 7813598

Claim:
A device comprising a fibre-reinforced part and including at least one system for use in temperature compensation of strain measurements, said system comprising an optical fibre as well as connecting means for connection of light emitting means and light receiving means to the optical fibre, said optical fibre comprising a number of reflecting structures, wherein the system comprises at least one holding means holding one or more loops formed on the optical fibre, in a way where at least one loop may substantially freely change length when subject to a change in temperature, and where the optical fibre is at least extending between the connecting means and the holding means, and where said at least one loop, which may substantially freely change length, is held by the holding means and comprises a part of the optical fibre, which comprises a number of reflecting structures, and where said optical fibre, the connecting means and the holding means are at least partly embedded in said fibre-reinforced part of said device.