Measuring and testing – Vibration – By mechanical waves
Reexamination Certificate
2005-09-20
2005-09-20
Williams, Hezron (Department: 2856)
Measuring and testing
Vibration
By mechanical waves
C073S627000
Reexamination Certificate
active
06945111
ABSTRACT:
A system for inspecting adhesive in a composite structure, such as for soft or improperly cured regions, includes a transducer and a processing element. The transducer can transmit a signal, such as an ultrasonic signal, into the adhesive such that at least a portion of the ultrasonic signal can propagate through the adhesive, reflect off of an interface between the adhesive and another material, and propagate back through the adhesive. Upon exiting the adhesive, then, the transducer can receive a reflected portion of the ultrasonic signal. Thereafter, the processing element can identify a defect, such as soft or improperly cured regions, in the adhesive upon a relationship of an amplitude of the reflected portion of the reflected ultrasonic signal to a predefined threshold.
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Alston & Bird LLP
Miller Rose M.
The Boeing Company
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