Laser-Based Ultrasonics on Gr/Epoxy Composite: Interferometric Detection
The use of non-contact ultrasonic techniques for the inspection of wings, tail sections and fuselages of aircraft in the field environment is an attractive alternative to current contact or squirter approaches. This paper reports on the use of laser generation and detection of ultrasound for flaw detection in Gr/Epoxy composite panels. Laser-based ultrasonics is a well documented technique which has been demonstrated by many researchers [1–8] and is being applied in several industrial areas [9–11].
KeywordsProbe Laser Polarize Beam Splitter Compensation Circuit Interferometric Detection Probe Laser Frequency
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