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Method for measuring propagation velocity of sound waves in e.g. liquid medium, involves determining approximation of propagation velocity of sound waves in measuring section based on phase angles of sound waves
Method for measuring propagation velocity of sound waves in e.g. liquid medium, involves determining approximation of propagation velocity of sound waves in measuring section based on phase angles of sound waves
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机译：测量声波传播速度的方法液体介质，涉及根据声波的相位角确定测量部分中声波的传播速度的近似值
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摘要
The method involves passing the sound waves with different frequencies in a measuring section and determining the phase angles of the sound waves with respect to the associated reference signals of the frequencies. The approximation of the propagation velocity of the sound waves in the measuring section is determined based on the measured phase angles. The measuring window is positioned based on the propagation velocity approximation.
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