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"University of Tokyo" Search Results: 57
Title / Author(s) / Keywords Publication Date
An Analysis of Ultrasonic Wave Generated by Oblique Incidence of Laser
O. Saito12, N. Higuchi2, Y. Okabe19, E. Sen1
1Institute of Industrial Science; University of Tokyo57, Tokyo [Japan]
2Research & Innovation center; Mitsubishi Heavy Industries4, Minato-ku, Nagoya [Japan]
Laser ultrasonics, Oblique incidence, Numerical simulation

 
SHM-NDT 2018
Session: Structural Health Monitoring
2018-12
Tower Tilt Monitoring with Wireless Two-Way Interferometry (WI-WI)
S. Yasuda12, N. Shiga12, B. Panta2, K. Fukunaga17
1National Institute of Information and Communications Technology (NICT)7, Tokyo [Japan]
2Earthquake Research Institute; University of Tokyo57, Tokyo [Japan]
Synchronization, Nondestructive testing, Wireless communication, Interferometry

 
SHM-NDT 2018
Session: Structural Health Monitoring
2018-12
Numerical Analysis of Lamb Wave Propagation in a Periodically Stiffened CFRP Plate for Impact Damage Detection
P. Deng, O. Saito2, Y. Okabe9
Institute of Industrial Science; University of Tokyo57, Tokyo [Japan]
Aerospace, Composite materials, Impact, Ultrasonics

 
EWSHM 2018
Session: Lamb waves
2018-11
Deep Sensing Approach to Single-Sensor Bridge Weighing in Motion
T. Kawakatsu1, K. Aihara2, A. Takasu2, J. Adachi2
1University of Tokyo57, Tokyo [Japan]
2National Institute of Informatics (NII), Tokyo [Japan]
Civil engineering, Data processing, Detection systems, Probability of detection, Sensors, Strain

 
EWSHM 2018
Session: Machine learning
2018-11
High-temperature Ultrasonic/AE sensing System Using Fiber-optic Bragg Gratings
F. Yu5, Y. Okabe9
Institute of Industrial Science; University of Tokyo57, Tokyo [Japan]
Acoustic emission, Composite materials, High temperature, Sensors, Ultrasonics

 
EWSHM 2018
Session: Optical fibres
2018-11
Multi-pass CT Scanning with Orientation Selection and Volume Integration for Metal Artifact Reduction
K. Kobayashi, Y. Ohtake13, Y. Nagai10, H. Suzuki13
University of Tokyo57, Tokyo [Japan]
Radiographic Testing (RT), Modeling and Simulation, Multi-pass CT Scan, Metal Artifact Reduction, Cone-beam X-rays, X-ray Computed Tomography (CT)

 
APCNDT 2017
Session: Computed Tomography 1
2018-03
Extraction of Woven Strip Structures from its X-ray CT Volume
Y. Nagai10, Y. Ohtake13, H. Suzuki13
Department of Precision Engineering; University of Tokyo57, Tokyo [Japan]
Radiographic Testing (RT), Modeling and Simulation, Woven structure, Differentials, X-ray CT

 
APCNDT 2017
Session: Radiography 2
2018-03
Detection of Narrow Gaps Using Hessian Eigenvalues for Shape Segmentation on CT Volume of Assembled Parts
S. Watanabe, Y. Ohtake13, Y. Nagai10, H. Suzuki13
School of Engineering; University of Tokyo57, Tokyo [Japan]
CT volume segmentation, Gap detection, Shape extraction of assembled parts

 
iCT 2018
Session: Algorithms, image processing and visualisation
2018-02
Modeling of contact acoustic nonlinearity for evaluating fatigue crack in metal plate
R. Wang1, Q. Wu24, F. Yu25, Y. Okabe29, K. Xiong13
1State Key Laboratory of Mechanics and Control of Mechanical Structures; Nanjing University of Aeronautics and Astronautics (NUAA)45, Nanjing [China]
2Institute of Industrial Science; University of Tokyo57, Tokyo [Japan]
Fatigue crack, Nonlinear ultrasonics, Nondestructive testing, Contact acoustic nonlinearity

 
AeroNDT 2017
2018-02
High-precision source location of AE event using automatic error correction of signal rising time
K. Ito6, M. Enoki17
Department of Materials Engineering; University of Tokyo57, Tokyo [Japan]

 
Journal-AE
Session: Volume 34, 2016
2017-10
Numerical analysis of laser ultrasound propagation excited by mid IR light source in CFRP
K. Oguchi1, M. Enoki117, H. Yamawaki23, H. Hatano2, M. Watanabe2
1Department of Materials Engineering; University of Tokyo57, Tokyo [Japan]
2Optical & Electronic Materials Unit; National Institute for Materials Science (NIMS)6, Tsukuba [Japan]
LUT, CFRP, wave propagation analysis, FEM, optical depth, mid-IR laser

 
NDT.net Journal
Session: Laser Ultrasonic 2016
2017-02
Damage Type Identication Based on Acoustic Emission Detection Using a Fiber-Optic Sensor in Carbon Fiber Reinforced Plasitc Laminates
F. Yu15, Y. Okabe19, Q. Wu14, N. Shigeta2
1Institute of Industrial Science; University of Tokyo57, Tokyo [Japan]
2Institute of Industrial Science; IHI Corporation, Tokyo [Israel]
Optical Fiber Sensor, Composite Material, Guided Wave

 
EWGAE 2016
Session: Advanced Composites
2016-11
High Sensitivity Detection of AE Events in Noisy Environment using Stream Recording and Parallel Computation
K. Ito6, M. Enoki17
Department of Materials Engineering; University of Tokyo57, Tokyo [Japan]
Signal Processing, Continuous Waveform, Noise Filtering, Multiple Thresholds, Parallel Computing

 
EWGAE 2016
Session: Devices, Sensors and Transducers
2016-11
Evaluation of Deformation Behavior in LPSO-Magnesium Alloys Byae Clusteringand Inverse Analysis
M. Enoki17, Y. Muto, T. Shiraiwa2
Department of Materials Engineering; University of Tokyo57, Tokyo [Japan]
Kink deformation, LPSO-Mg alloys, Clustering, Inverse analysis

 
EWGAE 2016
Session: Materials Characterization
2016-11
CT Reconstruction on Unstructured Mesh for Multi-material Object
Y. Nagai10, Y. Ohtake13, H. Suzuki13
School of Engineering; University of Tokyo57, Tokyo [Japan]
Other Methods, Computed Tomography, Tetrahedral mesh, Mesh generation

 
WCNDT 2016
Session: Computed Tomography
2016-07
Non-destructive Evaluation of Stress Corrosion Cracking under Micro Cell by Acoustic Emission and Video Microscope
M. Shiwa12, H. Masuda1, H. Yamawaki13, K. Ito26, M. Enoki217
1National Institute for Materials Science (NIMS)6, Tsukuba [Japan]
2Department of Materials Engineering; University of Tokyo57, Tokyo [Japan]
Corrosion Detection

 
WCNDT 2016
Session: Corrosion Detection
2016-07
Dimensional Measurement of Nuclear Fuel Pellets using High Energy X-ray CT
K. Yamaguchi1, Y. Ohtake113, H. Suzuki113, Y. Nagai110, A. Ishimi22, K. Katsuyama23
1University of Tokyo57, Tokyo [Japan]
2Japan Atomic Energy Agency7, Hokkaido [Japan]
Radiography/ Computed Tomography

 
WCNDT 2016
Session: Radiography/ Computed Tomography
2016-07
Efficient Iterative CT Reconstruction on Octree Guided by Geometric Errors
S. Kim1, A. Sakane1, Y. Ohtake113, H. Suzuki113, Y. Nagai110, K. Sato2, H. Fujimoto35, M. Abe35, O. Sato34, T. Takatsuji35
1School of Engineering; University of Tokyo57, Tokyo [Japan]
2Hitachi Ltd3, Yokohama [Japan]
3National Metrology Institute of Japan (NMIJ)4, Tsukuba [Japan]
CT reconstruction, Adaptive data structure, Iterative algorithm, Geometric error driven method

 
iCT 2016
Session: Algorithms, optimisations and visualisations
2016-02
Quality evaluation of X-ray computed tomography volume data in dimensional metrology
L. Xue1, H. Suzuki113, Y. Ohtake113, H. Fujimoto25, M. Abe25, O. Sato24, T. Takatsuji25
1RCAST; University of Tokyo57, Tokyo [Japan]
2National Metrology Institute of Japan (NMIJ)4, Tsukuba [Japan]
X-ray computed tomography, dimensional metrology, image quality, measurement accuracy, entropy

 
iCT 2016
Session: Metrology
2016-02
Multi-Material 3D Shape Reconstruction by Dual-Energy CT Imaging
M. Negishi, Y. Ohtake13, H. Suzuki13, Y. Nagai10
School of Engineering; University of Tokyo57, Tokyo [Japan]
multi-material, dual-energy imaging, sinogram, shape extraction

 
iCT 2016
Session: Reconstruction and corrections methods
2016-02
 
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