Applying quadraphonic transmission ultrasonic defectoscopy on standard aluminum materials

摘要

Quadraphonic transmission ultrasonic defectoscopy (QTUD) is a new method of ultrasound. This paper presents a detailed and systematic view of the measuring procedure that enables the discovery of a necessary optimal balance between, on the one side, efficiency and reliability of the QTUD measuring system, and on the other, minimizing the investment costs in the measuring components precision. This type of defectoscope applies relatively low frequencies of just a few tens of kilohertz that enable the necessary signal penetration during the measuring procedure. This paper shows a defectoscopic examination of the standard aluminum material AlMg3 with a defect that has been purposely created in need of developing the QTUD measuring procedure, whereby varied wave forms and the amplitude levels of signal have been used for the purpose of their optimization.