Fluids for Acoustic Lenses.
Final rept. 26 Jul 68-26 Jul 69,
PENNWALT CORP KING OF PRUSSIA PA CORPORATE RESEARCH AND DEVELOPMENT
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The velocity of sound in a number of liquids and liquid mixtures, mainly organic compounds containing fluorine, was measured at 0, 20, and 40C. Densities were also obtained, and values of acoustic impedance and temperature coefficients of sound velocity were calculated. Author