Results 71 to 80 of about 1,348 (176)
Pipe inspection and repair system [PDF]
, 2004 A multi-module pipe inspection and repair device. The device includes a base module, a camera module, a sensor module, an MFL module, a brush module, a patch set/test module, and a marker module. Each of the modules may be interconnected to construct one
Boehmke, Scott +4 more
core +1 more source
A new air gap flux‐based technique to detect loss of field in synchronous generators
IET Electric Power Applications, Volume 18, Issue 5, Page 543-555, May 2024.A new technique is proposed for loss of field (LOF) detection in synchronous generators (SGs). The proposed scheme employs the variations of SG angular velocity and load angle to reach this goal, while the mentioned parameters are estimated through air gap flux estimation.
Mohammad Reza Haseli +2 more
wiley +1 more source
MagnetochemistryMagnetic flux leakage (MFL) testing is a widely used non-destructive method for detecting defects in ferromagnetic pipelines. However, demagnetizing fields in ferromagnetic materials can distort MFL signals, reducing detection accuracy.
Jiawen Zhang +5 more
doaj +1 more source
A Sensor for Broken Wire Detection of Steel Wire Ropes Based on the Magnetic Concentrating Principle
Sensors, 2019 Electromagnetic testing is the most widely used technique for the inspection of steel wire ropes. As one of the electromagnetic detecting approaches, the magnetic flux leakage (MFL) method has the best effect for the detection of broken wires.
Yiqing Zhang +4 more
doaj +1 more source
AIP Advances, 2023 Ferromagnetic materials are widely used in infrastructure, such as steam generators, storage tanks, and gas pipelines. During their service time, ferromagnetic materials are subject to deterioration and defects are prone to generate which could damage ...
Guanyu Piao, Jiatong Ling, Jiaoyang Li
doaj +1 more source
Routes for GMR-Sensor Design in Non-Destructive Testing
Sensors, 2012 GMR sensors are widely used in many industrial segments such as information technology, automotive, automation and production, and safety applications. Each area requires an adaption of the sensor arrangement in terms of size adaption and alignment with ...
Andreas Schütze +4 more
doaj +1 more source
External Corrosion of the bottom plate of Petroleum and Derivative Storage tanks on Compacted Soils [PDF]
, 2018 Inspections carried out on petroleum and derivative storage tanks on compacted soils have shown external corrosion on the bottom plates of the tanks despite cathodic protection by an impressed current.
Castro, M. M. (Mauro) +2 more
core
Advances in Potential Drop Techniques for Non-Destructive Testing
, 2009 In the field of Non-Destructive Testing, Potential Drop (PD) techniques have been used for decades, especially in the petrochemical and power generation industries, for monitoring crack growth and wall thickness variations due to corrosion and/or ...
Sposito, Giuseppe, Sposito, Giuseppe
core +1 more source
A Simulation and Experimental Study Investigating 2D Magnetic Flux Leakage (MFL) for Defects in Reinforcing Steel [PDF]
, 2023 The study examines magnetic flux leakage signals (Bx, By) within D19 sized rebars in two dimensions. An economically designed test setup incorporating permanent magnets was used to collect magnetic flux leakage at the defect location.
Kee, Seong-Hoon +2 more
core +1 more source
An auxiliary device for internal pipeline stress detection based on Barkhausen effect
You-qi chuyun, 2020 For the requirements of integrated internal detection of the pipeline stress concentration and metal damage, the internal stress detection technology based on continuous Barkhausen effect was studied, and an auxiliary device for internal stress detection
Jinzhong CHEN, Yilai MA, Yang JIN
doaj +1 more source