Title :
Sub-terahertz imaging for construction materials
Author :
Kurabayashi, Toru ; Zhen, Li ; Plotka, Piotr ; Watanabe, Minro ; Oyama, Yutaka ; Nishizawa, Jun-ichi
Author_Institution :
Terahertz Waves Lab., Iwate Prefectural Univ., Takizawa
Abstract :
Sub-terahertz imaging for construction materials has been performed using room-temperature operating oscillators. Invisible defects in woods, and mixed foreign bodies and cracks in concrete were detected effectively by power transmission imaging. In addition, rusty area covered with paint on the steel was distinguished by power reflection imaging. So, Sub-terahertz imaging is one of the promising tools for the safe structural engineering.
Keywords :
concrete; cracks; flaw detection; submillimetre wave imaging; wood; concrete; construction materials; cracks; power reflection imaging; power transmission imaging; room-temperature operating oscillators; structural engineering; subterahertz imaging; woods; Absorption; Building materials; Concrete; Inspection; Optical imaging; Oscillators; Power transmission; Reflection; Semiconductor materials; Steel;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665727
