Alstom (switzerland) Ltd

Xavier R Ollat

Joseph W Quinn

Terry M Grayson

An apparatus for providing information concerning a condition of a vessel such as a steam drum which segregates steam and liquid from one another includes a liquid contact assembly a signal generator element and a housing and a conduit for enclosing the signal generator element in a substantially leak proof manner within the vessel space. The liquid contact assembly is disposable at a first vessel location in the steam drum and has a vibration component operable to vibrate at natural frequencies which vary as a function of a predetermined characteristic of the liquid at the first vessel location and a support component for supporting the water contact assembly in contact with the liquid at the first vessel location. The signal generator element generates a signal indicative of a natural frequency of the vibration component

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Bloomfield, CT, United States of America

Xavier R Ollat