Detection and acoustical visualization of internal defects in shotcrete structures by spatial spectral entropy for noncontact acoustic inspection method

2019 ◽  
Author(s):  
Kazuko Sugimoto ◽  
Tsuneyoshi Sugimoto ◽  
Hiroshi Morioka ◽  
Noriyuki Utagawa ◽  
Chitose Kuroda ◽  
...  
Keyword(s):  
Spectral Entropy ◽  
Internal Defects ◽  
Inspection Method ◽  
Acoustic Inspection

Study on the measurement speed and signal to noise ratio of multi tone burst wave for high speed non-contact acoustic inspection method

2016 ◽  
Vol 140 (4) ◽  
pp. 3212-3212
Author(s):  
Nobuaki Kosuge ◽  
Tsuneyosi Sugimoto ◽  
Kazuko Sugimoto ◽  
Chitose Kuroda ◽  
Noriyuki Utagawa
Keyword(s):  
High Speed ◽  
Signal To Noise Ratio ◽  
Tone Burst ◽  
Signal To Noise ◽  
Inspection Method ◽  
Noise Ratio ◽  
Acoustic Inspection

Study on detectable size and depth of defects in noncontact acoustic inspection method

2014 ◽  
Vol 53 (7S) ◽  
pp. 07KC15 ◽  
Author(s):  
Kageyoshi Katakura ◽  
Ryo Akamatsu ◽  
Tsuneyoshi Sugimoto ◽  
Noriyuki Utagawa
Keyword(s):  
Inspection Method ◽  
Acoustic Inspection
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