Detection of resonance frequency of both the internal defects of concrete and the laser head of a laser Doppler vibrometer by spatial spectral entropy for noncontact acoustic inspection

2019 ◽  
Vol 58 (SG) ◽  
pp. SGGB15 ◽  
Author(s):  
Kazuko Sugimoto ◽  
Tsuneyoshi Sugimoto ◽  
Noriyuki Utagawa ◽  
Chitose Kuroda
Keyword(s):  
Resonance Frequency ◽  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Spectral Entropy ◽  
Internal Defects ◽  
Laser Head ◽  
Acoustic Inspection

scholarly journals Measurement of the resonance frequency of single bubbles using a laser Doppler vibrometer

2008 ◽  
Vol 123 (6) ◽  
pp. EL121-EL125 ◽  
Author(s):  
Theodore F. Argo ◽  
Preston S. Wilson ◽  
Vikrant Palan
Keyword(s):  
Resonance Frequency ◽  
Laser Doppler Vibrometer ◽  
Laser Doppler
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