Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
B ATransmitter
¼ λ
Transmitter
AB
ReceiversObjectbeingexamined
Defect
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Marcelling
Crack
Marcelling
Multiplewrinklesincloseproximity
Single,largewrinkle
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Crackandsurroundingdelamination
ScoresinBalsaWood
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
Copyright © 2016 Wetzel Engineering. All Rights Reserved.
CONCLUSIONS