Study of Volume Measurement using Sound Signal : Measurement of Volume using a Speaker as Sound Source and Sound Frequency

抄録

A new accurate measurement of variation in cavity volume in the container has been investigated. It is difficult to obtain a stable measurement with an air jet due to variable factors such as the compressed air pressure and pipe dimensions. This paper deals with a new resonance method using the radiated sound from a speaker. The sound frequency obtained by the experiment is compared with the calculation result of the frequency found by the theoretical analysis in which the cavity system is composed of two acoustic pipes. This method of measuring the volume is applicable measurement of not only liquids but also solids, animals, etc.