Measuring and testing – Vibration – By mechanical waves
Patent
1989-11-30
1991-04-23
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
73599, 73602, 264 401, 264257, 264510, G01N 2916, G01N 924
Patent
active
050091042
ABSTRACT:
Method and apparatus for the non-destructive monitoring of the time dependent curing of an advanced composite positioned within an autoclave where it is subjected to varying pressures and elevated temperatures over a predetermined time period. A tool receiving the uncured advanced composite for receiving an acoustic wave guide which directly coupled to the composite. Ultrasound pulses are directed through the acoustic wave guide and the amplitude of the reflected pulses indicate changes in the modulus of the composite during the cure.
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Duncan John R.
Finley Rose M.
General Dynamics Corporation
Gilliam Frank D.
Williams Hezron E.
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