method and apparatus for measuring absolute and independent of mechanical and thermal parameters, which act simultaneously on an optical fibre

摘要

the method and the device that implements include the implementation of a measure of dispersion of an optical fibre sensor (3).this measure is preferably carried out by a first and a second measure of optical path, ribilmente amendment - type interferometrico not incremental.the signal output from the optical fiber sensor (3), respectively, based on a first and a second wavelength.and a combination of the results of the above measures in order to re - handle two distinct values indicative of the physical parameters in the measurement. (figure 1).