DEVICE FOR MEASURING LIQUID LEVEL BY MEANS OF OPTICAL REFLECTOMETRY, STRUCTURE COMPRISING SUCH A DEVICE AND CORRESPONDING MEASURING METHOD

摘要

The invention relates to a measuring device comprising: at least one optical fibre (15); a light source (17); and an analyser (19) for analysing light radiation back-scattered by the optical fibre (15) and deducing therefrom the liquid level in relation to the bottom (9). The measuring device (1) comprises a floater (21) floating at the free surface (13) of the liquid, the floater (21) comprising a passage (23) in which the or each optical fibre (15) is received in a sliding manner, a section (25) of the optical fibre (15) engaged in the passage being crimped or diverted.