How does a demagnetizer work? YouTuber uses our teslameter to find out

In the words of our favorite YouTuber, “I have always wondered how the inexpensive magnetizer-demagnetizer tool works. What’s inside it? And why are there stairs inside the demagnetizer opening?” Watch Brainiac75’s latest video, in which he sets out to answer these questions with the help of our F71 teslameter (while also offering a preview of the instrument’s forthcoming live plotting feature): Source: Lakeshore…

Lake Shore scientist co-editor of book on magnetic measurement techniques

A new book slated to be published in late May and co-edited by our own Brad Dodrill is now available for order from Springer Nature. “Magnetic Measurement Techniques for Materials Characterization” (ISBN 978-3-030-70442-1) discusses the most commonly used techniques for characterizing magnetic material properties and their applications. The book provides a comprehensive and easily digestible collection and review of magnetic measurement techniques. It also examines the underlying operating principles and techniques of magnetic measurements and presents…

Magneto-optics research with reference to a Lake Shore VSM

A paper published this month on the ASC Photonics website (subscription required) highlights work of University of Minnesota and University of Glasgow, with the assistance of our own Dr. Cosmin Radu, towards the development of new types of monolithic optical isolators. This research is the latest in the two universities’ ongoing work designing isolators that can be used in silicon-on-insulator (SOI) technology for photonic integrated circuits (PICs). As referenced in the paper, a Lake Shore Cryotronics…

Avoid buyer’s remorse — evaluate product specs with a critical eye

Have you ever looked at a product with specifications that seem too good to be true?  As it turns out, you may be right. Far too many product specifications are carefully worded to sell units instead of basing their specs on sound, scientific practice. Depending on how a manufacturer decides to test their product, they may publish numbers that are misleading at best and meaningless at worst. Keep an eye out for these tricks and you…

Fundamentals of magnetic measurement

As magnets and assemblies arrive at your facility from magnet manufacturers, quality control engineers measure to confirm the performance of the unit’s magnetic characteristics. Testing might involve several procedures that use the results of magnetic field measurement, including:  Source: Lakeshore…

Save time and money testing complex magnets

As magnet assemblies continue to increase in complexity, QC operations also increase in difficulty if field values need to be assessed at multiple locations around the assembly. Off-the-shelf field mappers are readily available but cost tens of thousands of dollars and may not be optimized for your exact situation. In many cases, a DIY solution that pairs a high-speed teslameter and Hall probe with a motorized platform is the best fit for this application. Source: Lakeshore…