Apparatus and method for combined acoustic resonance spectroscopy density determinations.

摘要

A novel instrument was developed for simultaneous measurement of temperature (T), pressure (P), speed of sound (c), and density ({dollar}rho){dollar} of fluids over wide ranges of these variables. The speed of sound measurements were performed using a spherical acoustic resonator designed and fabricated in this laboratory. In order to measure density, an innovative densimeter based on application of Archimedes principle was developed. Confirmatory experiments were performed on a near ideal gas (argon) and a nonideal fluid (carbon dioxide) where P, T, c, and {dollar}rho{dollar} data were collected. The report describes the research and development of the entire instrument as well as the demonstration of its performance.