Analysis of Two High-Temperature Liquid Metal Pressure Measuring Systems

Abstract

A design approach to a high-temperature pressure transducer system for use in closed cycle liquid metal facilities utilizes the displacement of a diaphragm member by the liquid metal pressure. The displacement is then monitored by a suitable transduction device whose output indicates the pressure. A main problem area involves the pertinent characteristics of the transducer. This paper presents the analyses of two transduction system approaches based on (1) thermionic and (2) variable impedance phenomena.