NASA NTRS · 19720000750
Acoustical analysis system
Abstract
Integrated system is described which replaces several instruments normally used to analyze acoustical data in failure detection of mechanical or fluid systems. Analysis system extracts and measures repetitive waveforms superimposed on noisy background and compares amplitude with internally stored waveforms. Equipment used in system may be interfaced with general purpose digital computer.
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Tatge, R. B., Scott, P. F.. 1972-12-01. Acoustical analysis system. https://ntrs.nasa.gov/citations/19720000750
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