Defect Detection in Solid Timber Panels Using Air-Coupled Ultrasonic Imaging Techniques
Xiaochuan Jiang,
Jun Wang,
Ying Zhang
et al.
Abstract:This paper reports on investigations of the air-coupled ultrasonic (ACU) method to detect common defects in solid timber panels made of Chinese fir (Cunninghamia lanceolata (Lamb.) Hook.). The ACU technology is a non-contact method for nondestructive timber testing with quicker scanning rates compared to contact methods. A testbed was set up consisting of commercially available piezo-ceramic ACU transducers and in-house manufactured signal processing circuits. To demonstrate the suitability of the ACU techniqu… Show more
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