SYSTEM FOR IMPROVING THE DYNAMIC RANGE AND REDUCING MEASUREMENT UNCERTAINTY IN FIBRE OPTIC DISTRIBUTED SENSORS AND FIBRE OPTIC DISTRIBUTED MEASUREMENT EQUIPMENT

摘要

The present disclosure is based on distributed amplification based on the Raman Effect, consisting of one or more pump lasers (5) at various wavelengths combined with a variable number of fibre optic reflectors (6). These elements induce in the fibre optic sensor (4) or measurement object the necessary conditions for the propagation of the sensor or measurement equipment signals in virtual transparency mode, improving the signal-to-noise ratio in the sensor and measurement equipment signal, improving the dynamic range and increasing the range of the sensor or measurement equipment by up to 250 km.