Johnson Matthey Public Limited Company

Johnson Matthey Inc.

Tor Magnus Saevareide

Owen John Lloyd Jones

Francis O'Doherty

Magne Kjetil Husebo

Francis O'doherty

An apparatus and method for determining a level of a fluid within a vessel are disclosed. The apparatus includes: a source unit for emitting a beam of radiation into the interior of the vessel, the source unit including a source of radiation and a collimator for collimating radiation emitted by the source to provide the beam, wherein the source unit is adjustable to vary an angle of the beam with respect to horizontal; at least one detector for detecting radiation emitted by the source and having passed through at least a portion of the interior of the vessel; and a processor for: recording data corresponding to an amount of radiation detected at the at least one detector as a function of angle of the beam; and determining the level of the fluid, based on a variation of the data with the angle of the beam.

Apparatus and method for determining a level of a fluid within a vessel

The invention provides an apparatus and method for measuring a property of a gas, such as the amount of liquid in a stream of the gas. The apparatus comprises a source of beta particles (), a detector () capable of detecting beta particles, means () to support said source and said detector spaced apart from each other such that gas may enter the space between the source and detector and that the source is positioned to emit beta particles towards said detector; wherein said detector comprises a scintillation material in optical communication with a photodetector (), and means () to physically isolate said photodetector from said gas.

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Bergen, Norway

Tor Magnus Saevareide