Fibre optic level gauge and valve head provided with a fibre...

Details Fibre optic level gauge and valve head provided with a fibre... Fibre optic level gauge and valve head provided with a fibre...

G - Physics

01

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73/59

G01F 23/00 (2006.01) G01F 23/292 (2006.01)

Patent

CA 1190762

A B S T R A C T FIBRE OPTIC LEVEL GAUGE AND VALVE HEAD PROVIDED WITH A FIBRE OPTIC LEVEL GAUGE, FOR PRESSURE VESSELS Fibre optic level gauge for controlling the liquid level in a pressure vessel for liquefied gas, comprising at least one inlet optical fibre (12) and at least one outlet optical fibre (13) for providing optical communi- cation between the exterior and the interior of said pressure vessel, the inlet optical fibre (12) having one end adapted to be optically connected to an external light source, and the outlet optical fibre (13) having one end adapted to be optically connected to an external light detector, the inlet optical fibre (12) and the outlet optical fibre (13) having the other ends located within the vessel in spaced positions so that light emitted from one of these other ends is receivable by the other of these ends, wherein the inlet optical fibre (12) and the outlet optical fibre (13) enter the vessel through a housing (8), the interior of the housing (8) being filled up with a mass of a sealing material (17).

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