Abstract
A new technique for the measurement of sound velocity in liquids has been developed, which is especially suited to frequencies in the range from 0.5 to 5 mc. It employs an approximation to the boundary conditions in Guptill's closed form solution for the radiation field between two infinite walls with a piston source in one wall. Measurements have been made in distilled water at 0.6 and 7.6 mc with an error of less than 0.2 percent in the low-frequency measurements. No dispersion is indicated to the order of the experimental error, in the temperature range from 10 to 20°C. A description of the apparatus is given.
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