april 2016

Feature Article

The Design of a Permanent Magnet Motor for a Direct Drive Fan Application
By Lowell Christensen, Consultant | Lowell Christensen LLC
In this case study we will compare two types of permanent magnet brushless motors for a medium size overhead fan used in agricultural types of applications. The comparison will be done on the magnetic circuit portion of the motors only so the only volumes and weights compared will be the magnetic circuit parts including the magnet, back iron, lamination and copper wire. <read more>

Guest Blog

The Ambition to Get Highest Flux Densities, Is It Always Reasonable?
By Thomas Schliesch | Max Baermann GmbH
In many cases it certainly makes sense to provide permanent magnets with highest flux densities, e.g. for electrical machines to get large torques or good efficiencies. But on the other hand the quest for largest flux densities can originate also a few disadvantages, both for customers as well as for suppliers of permanent magnets. In detail those issues are often increased costs, lower coercivity or increased instability against demagnetization or temperature. Other problems may be higher brittleness, especially for bonded magnets, as well as minor side effects like larger stray fields or increased cogging torques. <read more>

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Save the Date for Magnetics 2017
Magnetics 2017, being held January 18-19, 2017 at the Rosen Plaza Hotel in Orlando, Fla., will focus on the latest advancements in magnetic applications, technology and materials. Serving OEM developers of products that utilize magnets and magnet systems, design engineers, OEM developers involved in EMC technology and magnetic effects, magnetics manufacturers and integrators, and material suppliers in the magnetics industry.

Magnetics 2017 is an opportunity to learn from technical experts and network with peers, professionals and potential business partners involved in a variety of applications.

• Learn about advancements in magnetic materials, as well as the latest technical innovations and application developments in the field of magnetics.

• Learn the outlook for pricing and economics.

• Discover the latest techniques, equipment and materials involved in the performance and control of magnetics.

• Learn from leading technical innovators the latest developments in how magnets are being applied, and magnetic effects utilized, to help optimize system and product performance in diverse applications.

Call for Presentations
The conference will have five tracks to address the magnetics market including Market outlook, Rare Earths / Permanent Magnets, Ferrites/Soft Magnetics, Electromagnetics, and Design & Manufacturing. Each track is designed to cover the latest advancements in the applications, technology, materials, and economic development. For more information on how to submit an abstract, contact Heather Williams or visit the website.

Toroidal Power Transformers
API Technologies’ Products produce a broad range of custom magnetic devices that includes Toroidal Power Transformers. <read more>

Powerful Mass Spectrometer Opens New Vistas for Scientists
Scientists worldwide now have access to a powerful new resource at the Environmental Molecular Sciences Laboratory, a Department of Energy Office of Science user facility at the Pacific Northwest National Laboratory, to help them address pressing science challenges related to the environment, biology and energy. <read more>

Arnold Magnetic Technologies Launches RECOMA 35E Samarium Cobalt Material
Arnold Magnetic Technologies has introduced a samarium cobalt (SmCo) magnet material, RECOMA 35E. <read more>

New High-Accuracy, High-Isolation, Differential Current Sensor ICs
Allegro MicroSystems, LLC has announced two new current sensor ICs that are economical and precise solutions for AC or DC current sensing. <read more>

New Terahertz Material Characterization System Installed in Brown University Lab
Brown University scientists exploring how frequencies within the terahertz band of the electromagnetic spectrum can advance spectroscopic studies of materials recently added a new tool to their research arsenal: a THz-frequency materials characterization system from Lake Shore Cryotronics. <read more>

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Electromagnetics | Magnetics/Assemblies | Materials | Software & Design

Test & Measurement | Research & Development

Asia-Pacific Region to Grow Dominance in Permanent Magnets Market
Asia-Pacific accounted for the highest market share of the global permanent magnet market in 2015, with 56.5 percent (applications by region) in terms of value. BCC Research reveals in its new report that increasing demand for permanent magnets in line with increasing demand for electronic devices, medical devices, electronic motors, and generators, will continue to expand the market of this dominate region. <read more>

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