What other kinds of optical fibre sensors are there on the market? How do they differ from those of OSMOS?
The main types of optical fibre sensors for structural surveillance available on the market are: the Fiber Bragg Grating (FBG) sensors, the Extrinsic Fabry-Perot Interferon (EFPI) meters and the Brillouin sensors. They use principles other than changes in light intensity, which is the principle chosen by OSMOS because it has many advantages. Optical fibre sensors which attempt to use alternative parameters are not really suitable for being embedded in building structures for the purposes of precision surveillance over the long-term. Most of them are used in telecommunications and have a number of defects such as not being very robust or reliable in the medium-term. Nor are they very satisfactory in terms of value for money. OSMOS sensors are far more efficient than other sensors in terms of the dynamic collection and recording of data.
