Accession Number : AD0661832

Title :   ANALYSIS OF ULTRASONIC ABSORPTION MEASUREMENTS IN LIQUIDS AT HIGH PRESSURES.

Descriptive Note : Technical rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS HIGH PRESSURE LAB

Personal Author(s) : Johnson,Walter H. , Jr. ; Holton,Gerald

Report Date : OCT 1967

Pagination or Media Count : 56

Abstract : A method, complete with error analysis, is given for determining the absorption coefficient for ultrasonic pulses (alpha) and the loss at the mirror and crystal (gamma) as a function of pressure. Results of the analysis are presented for distilled water as well as n-propanol. An expression for the pressure-dependent mirror-crystal loss is derived and checked against the experimental values obtained. In addition, a second method, which uses the expression for gamma, is discussed which enables one to obtain the absorption coefficient more directly from fewer measurements. (Author)

Descriptors :   (*LIQUIDS, HIGH PRESSURE), (*ULTRASONIC RADIATION, ABSORPTION), PRESSURE, ATTENUATION, PROPAGATION, VELOCITY, THERMODYNAMICS, COMPUTER PROGRAMS, THERMAL EXPANSION, MEASUREMENT

Subject Categories : Physical Chemistry
      Fluid Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE