Fluidic sound amplification system

Details Fluidic sound amplification system Fluidic sound amplification system

1994-11-15

1996-07-30

Chambers, A. Michael

Fluid handling

Processes

Involving pressure control

137819, 137828, 181 05, 181177, F15C 104, F15C 112

Patent

active

055402488

ABSTRACT:
A fluidic sound amplification system couples successive laminar proportional amplifiers through acoustic radiation between output and input horns to avoid the propagation of null offset signals. A second approach to obviating DC null bias in a fluidic sound amplification system comprises splitting the input signal, effecting a selected time delay on a portion of the signal such that the bandpass frequencies and dead zones or cancellation frequencies respectively of the amplified signals are 180.degree. out of phase and combine to produce a near uniform frequency response. A third approach is to use multiple parallel elements in each stage of amplification in such a manner that mechanical errors cancel each other out.

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Drzewiecki article "A Fluidic Audio Intercom", ASME 1980, pp. 89-94.
Drzewiecki Ph.D. Thesis "A Fluidic Voice Communication System and Data Link", Mar. 1980, pp. 17-187.

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