Accession Number : AD0758682

Title :   Parametric Difference-Frequency Generation of Sound in Air.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF

Personal Author(s) : Shealy,William Pierce

Report Date : DEC 1972

Pagination or Media Count : 33

Abstract : The study explores the feasibility of parametric difference-frequency generation in air through the interaction of two intense high-frequency sound waves. The sound pressure levels at various distances from the source are shown and the directivity of the difference-frequency is described. An experimental apparatus to generate the high-intensity primary signals is explained and some characteristics of the resonator are described. (Author Modified Abstract)

Descriptors :   (*ULTRASONIC RADIATION, PARAMETRIC AMPLIFIERS), (*SOUND TRANSMISSION, AIR), SOUND GENERATORS, FEASIBILITY STUDIES, THESES

Subject Categories : Acoustics

Distribution Statement : APPROVED FOR PUBLIC RELEASE