Results 21 to 30 of about 92,312 (333)

Parametric Simulation Analysis of the Electromagnetic Force Distribution and Formability of Tube Electromagnetic Bulging Based on Auxiliary Coil

open access: yesIEEE Access, 2020
Tube electromagnetic bulging has been given much attention due to its superior advantages in the field of light alloy processing. However, the conventional tube electromagnetic bulging process exhibits some critical issues that restrict its wide ...
Li Qiu   +7 more
doaj   +1 more source

Study of a Topology for Plate Electromagnetic Forming Based on Inner Reverse and Outer Positive Double Coil Loading

open access: yesIEEE Access, 2020
While electromagnetic forming is widely used for aluminum alloy materials, the non-uniformity of plate radial deformation is still a key issue that restricts the wide development of this technology.
Li Qiu   +7 more
doaj   +1 more source

Electromagnetic induction and damping - quantitative experiments using PC interface [PDF]

open access: yes, 2001
A bar magnet, attached to an oscillating system, passes through a coil periodically, generating a series of emf pulses. A novel method is described for the quantitative verification of Faraday's law which eliminates all errors associated with angular ...
Kumar, Satyendra   +2 more
core   +2 more sources

Electromagnetic Force Distribution and Deformation Homogeneity of Electromagnetic Tube Expansion With a New Concave Coil Structure

open access: yesIEEE Access, 2019
In the conventional electromagnetic tube expansion, the end effects generated by the conventional helix coil may lead to inhomogeneous tube deformation in the axial direction.
Li Qiu   +8 more
doaj   +1 more source

Design, fabrication and test of integrated micro-scale vibration based electromagnetic generator [PDF]

open access: yes, 2008
This paper discusses the design, fabrication and testing of electromagnetic microgenerators. Three different designs of power generators are partially microfabricated and assembled.
Beeby   +18 more
core   +1 more source

Dynamic characteristics of electromagnetic contactor with HTS-2G coil in liquid nitrogen [PDF]

open access: yesE3S Web of Conferences
In this paper is presented experimental investigation of dynamic characteristics of electromagnetic contactor with Hightemperature superconductive (HTS) coil in liquid nitrogen.
Ivanov Georgi   +2 more
doaj   +1 more source

Coil Temperature Rise and Workpiece Forming Efficiency of Electromagnetic Forming Based on Half-Wave Current Method

open access: yesIEEE Access, 2020
Electromagnetic forming is a well-developed high-rate forming technology. An important issue of this technology is the temperature rise of the driving coil, which can adversely affect the coil service life.
Li Qiu   +8 more
doaj   +1 more source

Research and Experiment on Separation Method of Different Electromagnetic Field Components Measured by Tilting Coil

open access: yesCejing jishu, 2023
Tilt coil is one of the commonly used antenna structures of azimuthal electromagnetic wave logging while drilling tools, which is widely used in Schlumberger, Halliburton and such instruments developed in China National Offshore Oil Corporation and China
TIAN Yuanshi   +5 more
doaj   +1 more source

Electromagnetic Imaging with Atomic Magnetometers: A Novel Approach to Security and Surveillance [PDF]

open access: yes, 2016
We describe our research programme on the use of atomic magnetometers to detect conductive objects via electromagnetic induction. The extreme sensitivity of atomic magnetometers at low frequencies, up to seven orders of magnitude higher than a coil-based
Deans, Cameron   +3 more
core   +2 more sources

Pitch Effect of Helical Coils of Electromagnetic Forming [PDF]

open access: yesIEEE Access, 2020
At present, solenoid (helical) coils are widely used in various researches, especially electromagnetic forming (EMF), due to their advantages of simple manufacture and high magnetic field strength. However, in the study of EMF, there are still some defects in the high precision calculation of solenoid coils in the magnetic field the main reason is that
Wenting Zhang   +7 more
openaire   +3 more sources

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