Results 91 to 100 of about 145,304 (328)
Scanning laser techniques for characterisation of different surface breaking defect geometries [PDF]
, 2012 Measurements using a laser scanning system consisting of a pulsed Nd:YAG laser to generate surface ultrasonic waves and an interferometer to detect the surface displacement, are presented for different samples and defect geometries.
Edwards, R. S. (Rachel S.) +4 more
core
Recent Advances of Slip Sensors for Smart Robotics
Advanced Materials Technologies, EarlyView.This review summarizes recent progress in robotic slip sensors across mechanical, electrical, thermal, optical, magnetic, and acoustic mechanisms, offering a comprehensive reference for the selection of slip sensors in robotic applications. In addition, current challenges and emerging trends are identified to advance the development of robust, adaptive,
Xingyu Zhang +8 more
wiley +1 more source
Parametric Study of Defect Detection in Pipes with Bend Using Guided Ultrasonic Waves
MATEC Web of Conferences, 2016 The propagation behaviour of guided ultrasonic waves in a steel pipe with welded bend is studied by finite element simulation. The effectiveness of the longitudinal L(0,2) and torsional T(0,1) guided waves in detecting circumferential cut near the weld ...
Jack Tan Jin +3 more
doaj +1 more source
Damage detection in acsr cables based on ultrasonic guided waves [PDF]
, 2014 The use of ultrasonic guided waves is growing as a non-destructive testing technique of multi-wire cables used in civil engineering structures. Wave propagation characteristics in these types of structures have been challenging to investigate owing to ...
Rodríguez-Rodríguez, Joaquín +3 more
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Advanced Materials Technologies, EarlyView.We introduce an additively manufactured bioreactor with a perfusion flow system and integrated temperature and pH sensors for skeletal muscle tissue biofabrication. The bioreactor's performance was evaluated by assessing the viability, spreading of the myoblast cells in a printed scaffold, and contraction of the isolated murine musculi interossei ...
Lys Sprenger +9 more
wiley +1 more source
MEMS vibrometer: Dynamic modeling of multimodal inertial transducers
Scientific ReportsGuided ultrasonic wave-based structural health monitoring utilizes propagating elastic waves to identify, locate, and characterize damage within aviation structures.
Jan Niklas Haus +6 more
doaj +1 more source
Numerical Simulation of Monitoring Corrosion in Reinforced Concrete Based on Ultrasonic Guided Waves
The Scientific World Journal, 2014 Numerical simulation based on finite element method is conducted to predict the location of pitting corrosion in reinforced concrete. Simulation results show that it is feasible to predict corrosion monitoring based on ultrasonic guided wave in ...
Zhupeng Zheng, Ying Lei, Xin Xue
doaj +1 more source
Sensors, 2018 This work proposes a 3D shaped optic fiber sensor for ultrasonic stress waves detection based on the principle of a Mach–Zehnder interferometer. This sensor can be used to receive acoustic emission signals in the passive damage detection methods ...
Chengming Lan, Wensong Zhou, Yawen Xie
doaj +1 more source
Understanding Interfacial Photoswitching Mechanisms in Atomically‐Thin TMD‐Spiropyran Hybrids
Advanced Materials Technologies, EarlyView.Photochromic molecules can effectively modulate the optoelectronic properties of atomically thin transition metal dichalcogenide semiconductors. Spiropyran that switches its chemical configuration upon alternating UV and visible irradiation enables light‐programmable optoelectronic devices.
Sewon Park +8 more
wiley +1 more source
A theoretical study on propagation of guided waves in a fluid layer overlying a solid half-space
Vietnam Journal of Mechanics, 2019 Ultrasonic guided waves propagating in a non-viscous fluid layer of uniform thickness bonded to an elastic solid half-space is theoretically investigated in this article.
Phuong-Thuy Nguyen, Haidang Phan
doaj +1 more source