Low-frequency sound generator

Details Low-frequency sound generator Low-frequency sound generator

1981-08-31

1982-11-23

Yasich, Daniel M.

Signals and indicators

Horns, whistles and compressional wave generators

134 1, 181 05, G10K 1000

Patent

active

043599621

ABSTRACT:
A low-frequency sound generator for generating intense sound, which generator includes an open resonator tube. Pressurized gas is supplied to the resonator tube as pulses through a feeder system which includes a valve slide member which controls the pressure of the supplied gas. The gas pulses develop standing sound waves in the resonator tube which provides a varying gas pressure. Means in the resonator tube is operable in response to changes in the gas pressure to provide positive feedback of the sound pressure in the resonator tube to the feeder system at a resonant frequency of the generator.

REFERENCES:
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Publ. "Introduction to Study of Mechanical Vibration", by G. W. VanSanten, 4/15/1954, pp. 18, 138, 126, 51-52.

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