Results 1 to 10 of about 4,793 (301)

Defect Detection Algorithm for Wing Skin with Stiffener Based on Phased-Array Ultrasonic Imaging [PDF]

Sensors, 2023
In response to the real-time imaging detection requirements of structural defects in the R region of rib-stiffened wing skin, a defect detection algorithm based on phased-array ultrasonic imaging for wing skin with stiffener is proposed.
Chuangui Wu, GuiLi Xu, Yimeng Shan, Xin Fan, Xiaohui Zhang, Yaxing Liu   +5 more
doaj   +2 more sources

Fast and Smart State Characterization of Large-Format Lithium-Ion Batteries via Phased-Array Ultrasonic Sensing Technology [PDF]

Sensors
Lithium-ion batteries (LIBs) are widely used in electric vehicles and energy storage systems, making accurate state transition monitoring a key research topic.
Zihan Zhou, Wen Hua, Simin Peng, Yong Tian, Jindong Tian, Xiaoyu Li   +5 more
doaj   +2 more sources

Numerical simulation of phased array ultrasonic testing for fillet weld defects of type-B sleeve

You-qi chuyun, 2022
Type-B sleeve repair is one of the main permanent repair methods for long-distance oil and gas pipelines at present. However, fillet weld defects are often produced during the operation, which need to be detected and evaluated by phased array ultrasonic ...
Hongbo ZHANG, Yuxuan WU, Bo HU, Yan LIU, Pengjun JIA, Cuixiang PEI   +5 more
doaj   +2 more sources

Sound Field Modeling Method and Key Imaging Technology of an Ultrasonic Phased Array: A Review

Applied Sciences, 2022
An ultrasonic phased array consists of multiple ultrasonic probes arranged in a certain regular order, and the delay time of the excitation signal sent to each array element is controlled electronically.
Qian Xu, Haitao Wang
doaj   +3 more sources

Parameter optimization method for delamination defects detection of composite laminate using phased array ultrasonic

Cailiao gongcheng, 2020
Aiming at the problem of accurate identification of delamination defects of composite laminates, an optimization method of activation aperture of phased array ultrasonic testing was proposed by simulation and experiment, and the effects of the activation
CAO Hong-yi, JIANG Ming-shun, MA Meng-yuan, ZHANG Fa-ye, ZHANG Lei, SUI Qing-mei, JIA Lei   +6 more
doaj   +2 more sources

All-optically controlled phased-array for ultrasonics. [PDF]

Nat Commun
Abstract The ability to dynamically shape ultrasound fields is critical for emerging applications in therapeutic ultrasound, particle manipulation and tissue engineering. While existing phased arrays provide beam steering for imaging, these newer applications require higher intensities.
Goyal R, Demeulenaere O, Fournelle M, Athanassiadis AG, Fischer P.   +4 more
europepmc   +5 more sources

Phased array ultrasonic testing of gear tooth

Cogent Engineering
This paper proposes a new testing method, phased array ultrasonic testing, for the internal defects of gear teeth, which can be used to inspect the teeth of final products, breaking the limitations of incomplete volume coverage of conventional ultrasonic
Liang Wang, Chenchen Ma
doaj   +3 more sources

Crack Orientation and Depth Estimation in a Low-Pressure Turbine Disc Using a Phased Array Ultrasonic Transducer and an Artificial Neural Network [PDF]

Sensors, 2013
Stress corrosion cracks (SCC) in low-pressure steam turbine discs are serious hidden dangers to production safety in the power plants, and knowing the orientation and depth of the initial cracks is essential for the evaluation of the crack growth rate ...
Wenshuang Chang, Shijiu Jin, Shili Chen, Xiaoxia Yang   +3 more
doaj   +2 more sources

Nonlinear Ultrasonic Phased Array Imaging [PDF]

Physical Review Letters, 2014
This Letter reports a technique for the imaging of acoustic nonlinearity. By contrasting the energy of the diffuse field produced through the focusing of an ultrasonic array by delayed parallel element transmission with that produced by postprocessing of sequential transmission data, acoustic nonlinearity local to the focal point is measured. Spatially
Potter, J. N., Croxford, A. J., Wilcox, P. D.   +2 more
openaire   +3 more sources

Phased Array Ultrasonic Sector Scan Imaging of Helicopter Damper Bolts Based on Vector Coherence Factor

Applied Sciences, 2022
Non-destructive testing of the cracks on the in-service bolt’s shank with size M18 is a challenging technical problem. Due to the weak echo energy of cracks with large buried depths, the conventional phased array ultrasonic sector scan imaging has a low ...
Jingxing Huang, Ming Chen, Qingru Kong, Liangzhong Xiao, Chao Lu, Yao Chen   +5 more
doaj   +1 more source