Articles

TT Electronics Expands with Precision Acquisition and Cummins Power Deal

TT Electronics, a UK-based global provider of magnetic components and engineered electronics, has acquired the US company, Precision. The move includes its absorption of the magnetics division of Cummins Power which Precision acquired earlier in the year.

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Yageo Acquires Pulse Electronics for $740M Which Earlier Acquired Egston Holdings

Taiwans Yageo Corp has agreed to acquire Pulse Electronics of San Diego for $740 million in cash, in turn absorbing Eggston Holdings of Austrria which was acquired by Pulse only months earlier. The string of deals brings together three top manufacturers of magnetic and electronic components into a new global powerhouse.

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Dysprosium 2.0

By Stan Trout, Spontaneous Materials

A little over five years ago I wrote a column called Dysprosium 2.0. Element number 66 has been in focus lately due to some forecasts about availability in light of some new applications. Adamas predicts a 30% shortage of Dy by 2025. It seems like an appropriate time to look at the situation again. Continue reading

The Changing Landscape of Electric Motor Efficiency Standards

Steve Constantinides, Principal Consultant | Magnetics & Materials, LLC

I was surprised to learn the extent of activity around motor efficiency improvement and the related new or updated standards. The following article should be considered an introduction to the topic. Many useful documents with links are shown in the references for those who wish to pursue the subject further. Continue reading

Balance and Training

Stan Trout, Spontaneous Materials
It was nice to see so many people at Magnetics 2018 in Orlando last month. It was a very pleasant exchange of ideas and information. We all seemed to get plenty of exercise, walking through the Hyatt Regency to our meeting rooms.

I had the good fortune on the first day to be part of the Keynote Panel Discussion called The Future of the Magnetics Industry Pricing, Trends, Technology. I thought I would use this opportunity to share some of the answers I provided to questions posed to the panel. Continue reading

Magnetometry Measurements: Considerations for Magnetic and First-Order-Reversal-Curve Measurements

Brad C. Dodrill, Lake Shore Cryotronics, Inc.

Magnetometers are used to characterize magnetic material properties. Magnetometry techniques can be broadly classified into two categories: inductive and force-based. Common inductive methods include vibrating sample magnetometry (VSM), extraction magnetometry, AC susceptometry and superconducting quantum interference device (SQUID) magnetometry. The two most commonly used inductive techniques are VSM and SQUID magnetometry. Alternating gradient magnetometry (AGM) is the most often used force-based technique. The measurement most commonly performed to characterize a materialís magnetic properties is that of a major hysteresis loop. The hysteresis or M(H) loop is typically used to determine a materialís saturation magnetization Ms (the magnetization at maximum applied field), remanence Mr (the magnetization at zero applied field after applying a saturating field) and coercivity Hc (the field required to demagnetize the material). More complex magnetization curves covering states with field and magnetization values located inside the major hysteresis loop, such as first-order-reversal-curves (FORCs), can provide additional information that can be used to characterize magnetic interactions and coercivity distributions in magnetic materials[1].

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Permanent Magnet Mistakes, Part Seven

Stan Trout, Spontaneous Materials

We conclude this series with the seventh and final blog, describing the many types of mistakes made with permanent magnets. My intent is to help engineers in the future avoid mistakes made in the past, and not to embarrass anyone.

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