Due to the advantages of lightweight, high strength and corrosion resistance, the application
of composite materials to aerospace equipment structural materials has been increasing. For this
reason, nondestructive inspection technologies for ensuring the quality of composite material
products are required to enable highly accurate and highly efficient evaluation. Therefore, we are
promoting the application examination and development of time-reversal phased array ultrasonic
testing technology for complex shapes, near infrared optical coherence tomography technology
that efficiently measures the height of surface wrinkle (fiber waviness), laser bond inspection
technology for detection of weak bonds that cannot be detected by conventional nondestructive
inspection, and simplified impact damage inspection technology that can be performed by
uncertified operators.