Results 21 to 30 of about 4,186,737 (348)
Gong-kuang zidonghua, 2016 In view of requirements of security and environmental monitoring in coal mine multiplex medium in challenging environment, in order to conquer the obstacles such as serious path loss, dynamic channel condition and constrained supply condition and so on ...
SHI Wenjuan +5 more
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A High-Precision Dual-Frequency Magnetic Induction Through-the-Earth Positioning Method
IEEE Access, 2021 To achieve the high-precision through-the-earth positioning in mine rescue, we propose a dual-frequency magnetic induction positioning method. The dual-frequency transmitter underground is a loop energized coil. The receiver on the ground is a three-axis
Wenlong Tian, Wei Yang, Xiaotao Shao
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Predicting loss in magnetic steels under arbitrary induction waveform and with minor hysteresis loops [PDF]
, 2004 We have studied ways of predicting power losses in soft magnetic laminations for generic time dependence of the periodic magnetic polarization J(t). We found that, whatever the frequency and the induction waveform, the loss behavior can be quantitatively
Fiorillo, F. +3 more
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A Formulation of an Evolution Equation Governing Magnetic Lines
Journal of Optimization, Differential Equations and Their Applications, 2018 It is shown that `a free function' in the evolution equation of Hornig & Schindler for the magnetic induction (Physics of Plasmas, 3 (3), 781 - 791) has a unique representation, obtained in an explicit form.
Vladimir L. Borsch
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Induction machine fault detection enhancement using a stator current high resolution spectrum [PDF]
, 2012 Fault detection in squirrel cage induction machines based on stator current spectrum has been widely investigated. Several high resolution spectral estimation techniques have been developed and used to detect induction machine abnormal operating ...
CHARPENTIER, Jean-Frederic +8 more
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Наука и техника, 2017 Magnetic mode for 3-phase transformer with symmetrical magnetic conductor of frame design has been investigated on schematic model. The scheme consists of three non-linear coils having star-connection without zero wire.
A. A. Mazurenko, E. T. Smirnov
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INVESTIGATION OF ELECTROMAGNETIC FIELDS IN RESIDENTIAL AREAS [PDF]
Acta Electrotechnica et Informatica, 2017 This article is devoted to investigation of impact of electromagnetic fields around the electrical equipment used in a residential area and their impact on the human body.
Dušan MEDVEĎ, Ondrej HIRKA
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Boundary-Element Analysis of Magnetic Polarization Tensor for Metallic Cylinder
IEEE Access, 2021 The magnetic polarization tensor has a promising capability of determining the geometry and material properties of metallic samples. In this paper, a novel computation method is proposed to estimate the magnetic polarization tensors for the metallic ...
Zhongwen Jin +9 more
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Wireless Temperature Measurement Validation Method for PCR Machines by Magnetic Hall-Effect Sensor
Jurnal Elektronika dan Telekomunikasi, 2022 The temperature validation controlled by temperature indication has a vital role in the polymerase chain reaction (PCR) test machine or thermal cycler. However, the validation process is complicated for several types of thermal cycler.
Swivano Agmal +2 more
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Fast Method for the Iron Losses Prediction in Inverter Fed Induction Motors [PDF]
, 2009 In this paper an easy method for the iron loss prediction in PWM inverter fed induction motors is presented. The method was initially proposed and validated for the prediction of the iron losses in non-oriented soft magnetic material with PWM supply ...
A. Boglietti +5 more
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