Measurement of acoustical impedances of fluids by analysis of transient acoustic waveshapes using an acoustical waveguide with piezoelctric transducers
Sheehan, James Edward
Coopens, Alan B.
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A method has been developed for measuring the acoustic impedance of fluids in a fluid-filled waveguide terminated at each end by piezoelectric crystals. Output voltage waveforms were computed for the general case of an arbitrary driving voltage. Analysis of these output waveforms, when the driving voltage was an impulse function, indicated significant changes in the voltage envelopes as the acoustic impedance of the fluid within the waveguide was varied.
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