A convenient high performance manual ultrasonic flaw detector
Acoustic contact when testing rails with a defectoscope car (railway track testing)
Acoustic emission testing of composites for quality and integrity innovation
Administrative und technische Maßnahmen zur Minderung der Reifen/Fahrbahngeräusche
A method for proximate testing of railroad wheels
A monolithic LWIR/NIR multispectral QWIP for night vision and see spot