Imaging the Anisotropic Elastic Properties of Paper with the Ineel Laser Ultrasonic Camera

The paper industry has long used ultrasonic Lamb waves for off-line inspection to determine the stiffness distribution in paper . Numerous efforts have been made, with varying levels of success, to bring such measurements on-line. Recently, the Idaho National Engineering Lab (INEEL) and the Institute for Paper Science and Technology (IPST) collaborated on a… (More)