Rotor blade test apparatus
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United States of America Patent
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-
Aug 12, 1986
Grant Date -
N/A
app pub date -
May 24, 1985
filing date -
May 24, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A rotor blade test apparatus having a striking solenoid to strike a rotor blade to generate an audio signal. A microphone receives the audio signal and applies it to a spectrum analyzer wherein the predominant natural frequencies of the rotor blade are determined.
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Cited Art Landscape
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