New microphone adapter permits installation of commercially available condenser microphone 1/8 inch (3 mm) in diameter at location of sensing ports, with remotely located preamplifier. Microphone has high-impedance source and low-level electrical output signal; therfore, adapter designed with minimum capacitance to avoid degradation of microphone sensitivity. Probe insensitive to aeroacoustic disturbances in high-velocity flow.
Miniature Microphone Adapter
NASA Tech Briefs ; 9 , 4
1986-03-01
Sonstige
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Englisch
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