Measurements on Sound Passing through a Shock Wave

Autor:	F. H. Nadig, Marcus D. O'Day, J. L. Bohn
Rok vydání:	1954
Předmět:	Physics Shock wave geography geography.geographical_feature_category Acoustics and Ultrasonics Microphone Acoustics Attenuation Acoustic wave Sound power Arts and Humanities (miscellaneous) Oscilloscope Sound (geography) Audio frequency
Zdroj:	The Journal of the Acoustical Society of America. 26:135-135
ISSN:	0001-4966
DOI:	10.1121/1.1917752
Popis:	Experimental results have been obtained to show that sound will pass through a shock wave with small attenuation. The shock waves were produced by high‐speed bullets and the sound frequencies used were 480 cps and 5000 cps. Various baffles and filters were used. One microphone was used to trigger the oscilloscope, and another one was used to receive the sound signal. Repetition of sweeps was prevented by a mechanical switch operated by the bullet. The measuring techniques will be described and oscillograms will be shown.
Databáze:	OpenAIRE
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