Results 41 to 50 of about 251,382 (141)

Fast-assembling nitrogen injection device for hot work of pipeline in station

You-qi chuyun, 2020
Considering that the operation time should be saved as much as possible during the hot work of pipeline in oil and gas station, the time required for nitrogen injection, pipe cutting, welding, NDT and other processes in the hot work of pipeline in ...
Bopeng LYU, Qingchun XIA, Lijun ZHONG, Haifeng WANG, Jiang LI, Jinhui ZHU, Youqi FENG, Qilin DUAN   +7 more
doaj   +1 more source

An Adaptive Pipe Inspection Robot for Complex Pipeline Navigation

IET Collaborative Intelligent Manufacturing, Volume 8, Issue 1, January/December 2026.
This paper introduces an advanced autonomous pipe inspection robot designed to address leakage and corrosion issues in complex pipeline infrastructures. Equipped with a wall‐press mechanism, adaptive control and a multisensor suite for imaging, monitoring and gas detection, the robot can navigate pipes from 250 to 450 mm, handle sharp bends and adapt ...
Md. Nahidul Alam, Md. Zahid Hasan Buiyan, Mohammad Sayem, Md. Abdullah Al Hasan Anik   +3 more
wiley   +1 more source

Design and Validation of an Articulated Sensor Carrier to Improve the Automatic Pipeline Inspection

Sensors, 2019
Pipeline inspection gauges (PIGs) carry out automatic pipeline inspection with nondestructive testing (NDT) technologies like ultrasound, magnetic flux leakage, and eddy current.
Antonio Ramirez-Martinez, Noé Amir Rodríguez-Olivares, Sergio Torres-Torres, Guillermo Ronquillo-Lomelí, Jorge Alberto Soto-Cajiga   +4 more
doaj   +1 more source

Failure Analysis and Loss Prevention of a High‐Pressure Fire‐Extinguishing Gas Cylinder

International Journal of Energy Research, Volume 2026, Issue 1, 2026.
This study presents a comprehensive forensic investigation into the catastrophic rupture of a seamless low‐alloy manganese steel high‐pressure gas cylinder used in a gaseous fire extinguishing system. Metallurgical examination revealed a tempered martensite matrix satisfying baseline manufacturing specifications.
Byoungil Jeon, Changhyup Park, Jangwoo Lee, Jaesung Oh, Hunbae Kim   +4 more
wiley   +1 more source

Evaluation of Pipe Thickness by Magnetic Hammer Test with a Tunnel Magnetoresistive Sensor

Sensors
A new nondestructive inspection method, the magnetic hammer test (MHT), which uses a compact and highly sensitive tunnel magnetoresistance (TMR) sensor, is proposed.
Jun Ito, Yudai Igarashi, Ryota Odagiri, Shigetaka Suzuki, Hiroshi Wagatsuma, Kazuhiro Sugiyama, Mikihiko Oogane   +6 more
doaj   +1 more source

Technological Evolution and Safety Enhancement of Automatic Couplers in Modern Railway Systems: A Systematic Review

Journal of Engineering, Volume 2026, Issue 1, 2026.
The global railway industry is undergoing a significant transformation toward a safer, more efficient, and sustainable transportation system, in which the automatic coupler serves as a vital component ensuring connectivity, safety, and operational reliability of train formations.
Jean Mario Valentino, Achmad Syaifudin, Yohanes Pringeten Dilianto Sembiring Depari, Subekti, Agus Sigit Pramono, Lukman Shalahuddin, Helena Carolina Kis Agustin, Muhammad Nur Afnan Uda, Uda Hashim, Sohaib Zia Khan   +9 more
wiley   +1 more source

Effect of High Temperatures on MFL Signals

e-Journal of Nondestructive Testing
Magnetic Flux Leakage (MFL) is a widely used non-destructive testing (NDT) technique for in line inspection (ILI) of pipelines, valued for detecting and characterising corrosion-induced metal loss.
I. C. Perez-blanco, J. J. Padilla, M.A, Rios-tarazona, S. Perez-rodriguez, J. C. Villamizar-rincon, L. Angel, M. B. Castellanos   +6 more
doaj   +1 more source

Application of Sensitivity Adaptive Adjustment Algorithm Based on Electrical Resistance Tomography for Sediment Detection in Sewage Pipelines

Journal of Sensors, Volume 2026, Issue 1, 2026.
Solid sediments are crucial for sewage pipeline inspection, as they directly affect pipeline stability. Current measurement methods are limited by issues such as invasiveness, high costs, and manual intervention, which impact accuracy and real‐time monitoring.
Yongguang Tan, Xiangchen Guo, Jinsuo Lu, Fukang Sun, Jinchao Shen, Jingqi Wang, Yifan Wang, Deepali   +7 more
wiley   +1 more source

Transformer‐Based Automatic Tracking of Structural Crack Propagation

Structural Control and Health Monitoring, Volume 2026, Issue 1, 2026.
As aging infrastructure presents increasing safety and maintenance challenges, effective monitoring of structural defect propagation is vital. While many methods detect cracks, few can track the same crack over time under varying conditions. This study presents a modular, automated framework to track crack propagation by integrating scale‐invariant ...
Hui Zuo, Tao Wang, Qipei Mei, Andrea Del Grosso   +3 more
wiley   +1 more source

Enhancement of the Excitation Efficiency of a Torsional Wave PPM EMAT Array for Pipe Inspection by Optimizing the Element Number of the Array Based on 3-D FEM

Sensors, 2015
Electromagnetic acoustic transducers (EMATs) can generate non-dispersive T(0,1) mode guided waves in a metallic pipe for nondestructive testing (NDT) by using a periodic permanent magnet (PPM) EMAT circular array.
Yugang Wang, Xinjun Wu, Pengfei Sun, Jian Li   +3 more
doaj   +1 more source