Concentration of Ultrasonic-Velocity Invariant with Respect to Temperature Observed in Alcohol-Water Mixtures

概要

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The pulse-echo overlap technique was used for measuring the ultrasonic velocity in aqueous mixtures of methanol, ethanol and ethylene glycol, changing the concentration and temperature. The purpose of the study is to find a standard liquid whose velocity is independent of temperature over a certain range. The velocity-invariant concentrations were determined to be 12.8 wt%, 13.4 wt% and 22.0 wt% respectively, for the above three mixtures, and the velocity was constant within 0.25% over the temperature range of 35 to 65℃.
社団法人応用物理学会の論文
1998-05-30