Results 111 to 120 of about 4,745,447 (241)

3D magnetic field sensing for magnetic flux leakage defect characterisation

Magnetic Flux Leakage (MFL) testing is widely used to detect defects in pipelines, rail track and other structures. The measurement of the two field components perpendicular to the test surface and parallel to the applied field in MFL systems is well ...
Tian, Gui Yun, Wilson, J.
core   +1 more source

A Novel Nonlinear Magnetic Equivalent Circuit Model for Magnetic Flux Leakage System

Applied Sciences
To ensure efficient inspection using the magnetic flux leakage (MFL) method, generating a flux density near the saturation level within the tested material is essential.
Okan Kara, Hasan Hüseyin Çelik
doaj   +1 more source

Toward Perception‐Native Electronic Skin: Bio‐Inspired In‐/Near‐Sensor and Neuromorphic Computing for Humanoid Robots

Advanced Materials Technologies, EarlyView.
Dense tactile streams from across the humanoid body converge on collide in a central wiring and data bottleneck. By relocating computation closer to and then into the skin itself, near‐ and in‐sensor architectures, together with neuromorphic computing, chart a path toward perception‐native electronic skin, in which the conversion of stimulus into ...
Mijin Kim, Chang‐Jae Beak, Jiyoung Park, Youngdo Jung, Sunjong Oh, Sin‐Hyung Lee, Bo‐Yeon Lee   +6 more
wiley   +1 more source

Measurement of ferromagnetic pipe wall thickness by magnetic flux leakage method

Қарағанды университетінің хабаршысы. Физика сериясы
The paper considers the use of the magnetic flux leakage method for measuring the wall thickness of ferromagnetic pipes. The method implies longitudinal magnetization of the test pipe section using a short solenoid and measurement of the spatial ...
A.E. Goldstein, K.A. Stryapchev
doaj   +1 more source

Biodegradable and Edible Milli‐Fluidic Logic Circuits

Advanced Materials Technologies, EarlyView.
Fully biodegradable and edible fluidic circuits are developed using gelatin‐based valves that operate at low pressure. Logic gates, a one‐bit memory, and a ring oscillator are demonstrated, showing that biodegradable materials can perform computation and control.
Shuhang Zhang, Bokeon Kwak, Özgün Ekrem, Dario Floreano   +3 more
wiley   +1 more source

Copper Electroplated TPMS Polymer Lattices for Lightweight Absorption Dominant Electromagnetic Interference Shielding

Advanced Materials Technologies, EarlyView.
Copper electroplating transforms lightweight 3D‐printed TPMS polymer lattices into effective electromagnetic shields. Topology, relative density, and conductive seed layer continuity govern copper penetration, electrical resistance, and attenuation. SEA consistently exceeds SER, while 35% RD Diamond lattice gives the best performance, reaching 48.72 dB
Aman Al Khatib, Fares AlAwwa, Naod Mogos, Abdallah Kamal, Kin Liao, Marwan El Rich, Wael Zaki   +6 more
wiley   +1 more source

Cost-Effective MFL NDT With Hall Sensors for Small Ferromagnetic Samples: Penetrating Defects Versus Thickness Detection

IEEE Access
Magnetic scanning non-destructive testing (NDT) methods are a real interest for many research and industrial areas. However, the already well-established popularized instruments and techniques for this area require complex, heavy and expensive equipment ...
Vlad Marsic, Petar Igic, Iain G. Thayne, Soroush Faramehr   +3 more
doaj   +1 more source

Bioinspired Adaptive Artificial Cilia With Tunable Sensitivity and Dynamic Range for Airflow Monitoring in the Central Airway

Advanced Materials Technologies, EarlyView.
A magnetically reconfigurable airflow sensor integrated with an airway stent enables tunable sensitivity and dynamic sensing range. Airflow‐induced cantilever deformation generates resistance changes, while an external magnetic field modulates sensor stiffness, enhancing sensitivity at low airflow velocities and extending the sensing range at higher ...
Darren Wang, Ruijian Ge, Shuda Dong, Zhongming Lyu, Yusheng Wang, Nicholas Strymish, Hanwen Fan, Fabien Maldonado, Caitlin T. Demarest, Yuxiao Zhou, Xiaoguang Dong   +10 more
wiley   +1 more source

Numerical and Experimental Research on Pipeline Magnetic Flux Leakage Testing With Inspection Device of Variable Diameters

, 2017
Finite element analysis model of magnetic flux leakage testing outside pipeline was established with analysis software in this paper. The leakage magnetic field characteristic curves of defects were obtained using this model.
Wei Xinhua, Liao Xiaoling, Wang Hong, Yang Xiangyue, Liu Yanlei, He Chengdai, Chen Tao   +6 more
core   +1 more source

Tumbling Magnetic Microrobots for Targeted In Vivo Drug Delivery in the GI Tract

Advanced Robotics Research, EarlyView.
We introduce a microrobot design and integrated system for on‐demand targeted drug release in the gastrointestinal tract. The microrobot has an embedded magnet for actuation with external magnetic fields and is visualized in real time using ultrasound. It has two drug release ports sealed with a thermally sensitive wax. Local heating of the wax using a
Aaron C. Davis, Luis Carlos Sanjuan Acosta, Shubh P. Mehta, Baiyan Qi, Yang Yang, Luis Solorio, Craig J. Goergen, David J. Cappelleri   +7 more
wiley   +1 more source