Temperature Effects in Dip-Tube Manometry

摘要

A simple mathematical treatment of the temperature dependence of manometric data for dip-tubes is described. It is shown that the pressure probe measurement is a function of the mass, temperature, and liquid level heights below and above the effective tip of the probe. The resulting equations explain why, for example, high- and low-level probes exhibit temperature sensitivity that is opposite in sign to one another. The derived equations are successful in the prediction of actual data obtained for two differently-shaped vessels containing two different liquids. (ERA citation 05:029558)