Millau Viaduct slightest movement in the Viaduct, and measure its resistance to wear-and-tear over time. Anemometers, accelerometers, inclinometers, temperature sensors are all used for the instrumentation network. Twelve fibre optic extensometers were installed in the base of pylon P2. Being the tallest of all, it is therefore under the most intense stress. These sensors detect movements on the order of a micrometre. Other extensometers, electrical this time, are distributed on top of P2 and P7. This apparatus is capable of taking up to 100 readings per second. In high winds, they continuously monitor the reactions of the Viaduct to extreme conditions. Accelerometers
Millau to Amiliavum, then to Milhau en Rouergat (in the Millhau language), then to the French Millhau. By the ninth century the town has grown and is the seat of a viguerie, a mediaeval administrative court, and a centre for the production of lambskin gloves. At this time the town is surrounded by ramparts. The tenth and eleventh centuries saw the creation of the Viscount of Millau and subsequently passed to the Counts of Provence, the Counts of Barcelona and eventually, in 1112, to the father of the future King of Aragon, Béranger III following his marriage to the daughter of