Results 221 to 230 of about 3,991,060 (277)

High-Precision, Wide-Ratio, Self-Balancing Current Comparator. [PDF]

Sensors (Basel)
Wang X, Li H, Liu H, Ding X, Wang J, Zhao P, Jiang H.   +6 more
europepmc   +1 more source

Measuring the Operating Condition of Induction Motor Using High-Sensitivity Magnetic Sensor. [PDF]

Sensors (Basel)
Kobayashi A, Nakamura K, Ono T.
europepmc   +1 more source

A MEMS Variable Reluctance Sensor for Contactless Detection of a Ferrous Rotating Target. [PDF]

Sensors (Basel)
Nasr D, Baù M, Nastro A, Bertelli S, Ferrari M, Said MH, Flandre D, Mansour M, Tounsi F, Ferrari V.   +9 more
europepmc   +1 more source

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The magneto-elastoplastic coupling effect on the magnetic flux leakage signal

Journal of Magnetism and Magnetic Materials, 2020
Abstract This paper introduces an experimental progress of the magneto-elastoplastic coupling phenomenon on magnetic flux leakage signal for ferromagnetic materials. The magnetic flux leakage signal on the surface of medium carbon steel was measured under the combined action of elastic load and plastic deformation.
Pengpeng Shi, Zhenmao Chen
exaly   +2 more sources

Invariance transformations for magnetic flux leakage signals

IEEE Transactions on Magnetics, 1996
Magnetic flux leakage (MFL) methods are used extensively for inspecting ferromagnetic materials. The analysis of the MFL signal is however fraught with problems associated with the sensitivity of the signal to a number of factors such as the MFL sensor velocity and variations in the permeability of the test specimen.
S S Udpa, W Lord, S Mandayam
exaly   +2 more sources

A Basic Signal Analysis Approach for Magnetic Flux Leakage Response

IEEE Transactions on Magnetics, 2018
Magnetic flux leakage (MFL) response predicting is important for defect estimation. This paper first proposes a concept of basic signal by discovering the combination property of the MFL response. The basic signal can be used to predict the MFL response conveniently by a basic signal combination method (BSCM), which is also innovatively put forward in ...
Shen Wang, Lisha Peng, Songling Huang
exaly   +2 more sources

Variation of the stress dependent magnetic flux leakage signal with defect depth and flux density

NDT and E International, 1996
Abstract The effects of uniaxial stress on the normal (radial) component of the magnetic flux leakage (MFL) signal induced by blind-hole defects for depths of 25%, 50% and 75% of the thickness of the pipe wall were investigated with a pipe wall flux density of 1.24 T.
Thomas Krause, David L Atherton
exaly   +2 more sources

A study of magnetic flux-leakage signals

Journal of Physics D: Applied Physics, 1998
Magnetic flux-leakage (MFL) measurement is the most widely used non-destructive technique for in-service inspection of oil and gas pipelines. The effect of line-pressure-induced hoop stress on MFL signals has been studied for an electrochemically milled pit (50% penetration) in a 9 mm thick steel pipe wall.
K Mandal, D L Atherton
openaire   +1 more source

A model for magnetic flux leakage signal predictions

Journal of Physics D: Applied Physics, 2003
An analytical model was developed to determine the length of a surface-breaking defect along the direction of the applied field when using the magnetic flux leakage (MFL) non-destructive technique. The theoretical model fits the experimental MFL results from simulated defects.
Catalin Mandache, Lynann Clapham
openaire   +1 more source

Importance of Magnetizing Field on Magnetic Flux Leakage Signal of Defects

IEEE Transactions on Magnetics, 2018
The measurement of magnetic flux leakage (MFL) is widely used as a non-destructive technique for inspecting oil and gas pipelines. In this method, many factors can affect the MFL signal, but the magnetization of the pipeline is a fundamental issue that bears consideration.
Hong Quang Pham, Quang Trung Trinh, Duy Tuan Doan, Quang Hung Tran   +3 more
openaire   +1 more source