The frequency or pitch used in ultrasonic testing far exceeds the limits of human hearing, and can range from 500 KHz to 20 MHz. An ultrasound transducer connected to a diagnostic machine is waved ...

NDT methods for composites include ultrasonic testing, X-ray inspection, thermography, visual inspection, and more. Arcadia Aerospace Industries LLC (AAI, Punta Gorda, Fla., U.S.) was founded by ...

Butterfly iQ is a small imaging machine for ultrasounds compatible with iPhones. With the right device, it appears the iPhone can even detect cancer. $3,500 iPhone possible?

Conventional ultrasound, using single-element transducers, is limited by high attenuation and low signal-to-noise ratio (SNR). Phased array ultrasonic testing (PAUT) uses multiple independent elements ...