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Published: 01 January 1986
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Published: 01 December 1998
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Published: 01 December 1998
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in Design and Fabrication of Inductors for Heat Treating, Brazing, and Soldering
> Induction Heating and Heat Treatment
Published: 09 June 2014
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Published: 30 September 2014
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Published: 15 December 2019
Fig. 8 Wien filter with electric and magnetic fields providing opposite forces to perform mass selection
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Book Chapter
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003233
EISBN: 978-1-62708-199-3
... Abstract Magnetic field testing includes some widely used nondestructive evaluation methods to inspect magnetic materials for defects such as cracks, voids, and inclusions and to assess other material properties, such as grain size, texture, and hardness. This article discusses the principles...
Abstract
Magnetic field testing includes some widely used nondestructive evaluation methods to inspect magnetic materials for defects such as cracks, voids, and inclusions and to assess other material properties, such as grain size, texture, and hardness. This article discusses the principles of such defect detection, providing details on the origin, generation, and assessment of leakage field data. In addition, it discusses the metallurgical and magnetic properties of magnetic materials and the applications of magnetic field testing.
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005858
EISBN: 978-1-62708-167-2
... the protection system adopted for the frequency range of 50 Hz to 10 MHz. arc welding electrical field health hazards magnetic field radiation emission An electric field is created as soon as a conductor is energized, while a magnetic field appears only during a passage of an electric current...
Abstract
This article provides an overview of electromagnetic fields (EMFs) and discusses their direct and indirect effects on human health. It provides a detailed description of the exposure levels of EMFs in residential and work environments. The article examines the international and European standards and regulations regarding occupational exposure to EMFs encountered in industrial activities. It discusses the categories of work equipment or activities that may expose the worker above and under the orientation value. The article also describes the main principles underlying the protection system adopted for the frequency range of 50 Hz to 10 MHz.
Image
Published: 01 January 1986
Fig. 1 In the presence of a magnetic field H 0 , the net nuclear magnetization M precesses around the z axis with angular frequency ω 0 . The time period for one revolution is termed the Larmor period.
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Published: 01 August 2013
Fig. 7 Magnetic permeability as a function of temperature and magnetic field intensity. Source: Ref 6
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Published: 01 December 1998
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Published: 01 December 1998
Fig. 10 Current and magnetic-field distribution in a ring being magnetized with a head shot. Because regions at contact points are not magnetized, two operations are required for full coverage. With use of the induced-current method, parts of this shape can be completely magnetized in one
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in Principles of Superconductivity
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 5 Plot of magnetization versus applied magnetic field for two classifications of bulk superconductors. (a) Type I. This type exhibits a complete Meissner effect (perfect diamagnetism). The internal field (given by B = H − 4π M ) is zero. Above H c the material is a normal conductor
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Published: 09 June 2014
Fig. 14 Magnetic properties of steel. (a) Effect of temperature and magnetic field intensity on relative magnetic permeability of medium-carbon steel. (b) Effect of carbon content on Curie temperature of plain carbon steel at a sufficiently slow heating rate. Source: Ref 1
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Published: 09 June 2014
Fig. 23 Magnetic field distribution (a) without and (b) with a U-shaped magnetic flux concentrator located around the central leg of a split-return inductor. Source: Ref 19
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Published: 09 June 2014
Fig. 10 Effect of temperature and magnetic field intensity on relative magnetic permeability of low-carbon steel. Source: Ref 10
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Published: 01 November 2010
Fig. 9 Relative magnetic permeability as a function of magnetic field intensity (range 100 to 1500 A/in., or 39 to 590 A/cm) and temperature (range 10 to 750 °C, or 50 to 1382 °F). Source: Ref 55
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Published: 01 August 2018
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Published: 01 August 2018
Fig. 14 Current and magnetic-field distribution in a ring being magnetized with a head shot. Because the regions at the contact points are not magnetized, two operations are required for full coverage. With the induced-current method, parts of this shape can be completely magnetized in one
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in Properties of Pure Metals
> Properties and Selection: Nonferrous Alloys and Special-Purpose Materials
Published: 01 January 1990
Fig. 36 Effect of magnetic field direction on Hall coefficients of iron at 27 °C. φ is the angle between the magnetic field and the [100] axis when current is passed along the [001] axis. Source: Ref 114
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