DEFECT IMAGING TECHNIQUE USING A SCANNING LASER SOURCE

2011 ◽  
Author(s):  
T. Hayashi ◽  
M. Murase ◽  
T. Kitayama ◽  
Donald O. Thompson ◽  
Dale E. Chimenti
Keyword(s):  
Imaging Technique ◽  
Scanning Laser ◽  
Laser Source ◽  
Scanning Laser Source ◽  
Defect Imaging

Non-contact imaging of subsurface defects using a scanning laser source

Ultrasonics ◽  
2022 ◽  
Vol 119 ◽  
pp. 106560
Author(s):  
Takahiro Hayashi ◽  
Naoki Mori ◽  
Tomotake Ueno
Keyword(s):  
Scanning Laser ◽  
Laser Source ◽  
Scanning Laser Source ◽  
Contact Imaging ◽  
Subsurface Defects

Imaging of damage in sandwich composite structures using a scanning laser source technique

2004 ◽  
Vol 35 (6-8) ◽  
pp. 557-562 ◽  
Author(s):  
Pavel A Fomitchov ◽  
Alexey K Kromin ◽  
Sridhar Krishnaswamy ◽  
Jan D Achenbach
Keyword(s):  
Composite Structures ◽  
Scanning Laser ◽  
Sandwich Composite ◽  
Laser Source ◽  
Scanning Laser Source

scholarly journals Rapid thickness measurements using guided waves from a scanning laser source

2009 ◽  
Vol 126 (3) ◽  
pp. 1101-1106 ◽  
Author(s):  
Takahiro Hayashi ◽  
Morimasa Murase ◽  
Muhammad Nor Salim
Keyword(s):  
Guided Waves ◽  
Scanning Laser ◽  
Laser Source ◽  
Scanning Laser Source ◽  
Thickness Measurements

Applications of scanning laser source technique for detection of surface-breaking defects

2000 ◽  
Author(s):  
Alexei K. Kromine ◽  
Pavel A. Fomitchov ◽  
Sridhar Krishnaswamy ◽  
Jan D. Achenbach
Keyword(s):  
Scanning Laser ◽  
Laser Source ◽  
Scanning Laser Source

scholarly journals Adhesive Bond Imaging by Noncontact Measurements With Single-Sided Access

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Shogo Nakao ◽  
Takahiro Hayashi
Keyword(s):  
Flat Plate ◽  
Adhesive Bonding ◽  
Imaging Technique ◽  
Laser Doppler Vibrometer ◽  
Adhesive Bond ◽  
Scanning Laser ◽  
Laser Source ◽  
Adhesive Bonds ◽  
Plate Structure ◽  
Noncontact Measurements

Adhesive bonding, an effective joining technique for platelike structures in aircraft and automobiles, requires postbond inspection preferably with noncontact and single-sided access. The present study discusses the application of an imaging technique with a scanning laser source (SLS) to evaluate adhesive bonds in a platelike structure. When a laser Doppler vibrometer (LDV) is used as a receiver, the SLS technique realizes noncontact measurements with single-sided access. The imaging experiments that used narrowband burst waves and broadband chirp waves indicated that the imaging technique is appropriately applied to adhesive bonds and that the use of broadband chirp waves provides clearer images and reduces spurious images due to resonance. Furthermore, images of adhesive bonds were clearly obtained for a complex plate structure that consisted of a top-hat section and a flat plate, and this demonstrates that the imaging technique can be widely applied to evaluate various adhesive bonds.

Sign in / Sign up

Export Citation Format

Share Document