Fluidic frequency generator

Details Fluidic frequency generator Fluidic frequency generator

1974-01-21

1976-03-16

Swisher, S. Clement

Signals and indicators

Horns, whistles and compressional wave generators

73194A, 116137A, G01F 166

Patent

active

039438848

ABSTRACT:
A helix of wire having predetermined dimensions is encircled by a sleeve of selected material which conforms to the exterior surface configuration of the helix. When a gas is applied into one end of the helix-sleeve combination, an audio frequency signal appears at the other end of the helix-sleeve combination having a frequency which increases in steps proportional to the entrance pressure of the gas flowing through the helix-sleeve combination, or proportional the changes in the mass rate of flow of the gas through the helix-sleeve combination.

REFERENCES:
patent: 2720221 (1955-10-01), Neilson
patent: 2986169 (1961-05-01), McCormick

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