SHAFT RUB SIMULATOR
Assignee
Filed
Feb 2, 1976
Granted
Jul 2, 1991
Location
CA US
Abstract
A synthesizer for complex acoustic signatures includes a generator for an ectrical analog of a complex acoustic waveform corresponding the the "shaft rub" noise produced by the interaction of a marine propeller shaft and a stern tube or other through-the-hull marine fitting. This circuitry employs digital random generators to produce a nonrecurring characteristic signal synthesizing this acoustic noise. An arrangement to process this signal with other simulation circuitry is also disclosed.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Dec 3, 1981
Rescinded
Nov 1, 1990
Duration
8 years, 11 months
Inventor
- 1HOWARD B. MC CRACKEN
Record Details
- Patent number
- US 5029143
- Application
- 05654307
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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