Hovering Steel Over a Permanent Magnet: A Design and Optimization Case Study
by Doug Craigen of Integrated Engineering Software

Recent benchmarking of simulated magnetic force distributions led to the observation of configurations where there was static repulsion between steel and a permanent magnet. The presentation will demonstrate how this idea was explored with simulation to learn more about how works, which then guided further simulation, which enabled much stronger repulsion devices than initially predicted. This is a case study in ways that simulation enhances design besides simply replacing physical prototyping. Some fun desktop toys that resulted from the study will be demonstrated.

Simulation of magnetic position sensor systems and the magnetization process.
by Michael Ortner of Silicon Austria Labs

Magnetic position sensor systems infer the relative position and orientation between a magnet and a magnetic field sensor from the sensor output. Currently, over 50% of global sensor production is dedicated to these applications. In my presentation, I will discuss the modeling of such sensor systems, with an emphasis on the permanent magnets and the challenges arising from inhomogeneous magnetizations due to the magnetization process.

Exploring Market Opportunities in Magnetic Materials for Safety: From Non-Destructive Testing of Critical Assets to Electromagnetic Shielding
by André Pereira of Faculty of Sciences of Porto University – IFIMUP

The demand for enhanced safety measures in various industries has propelled the market for magnetic materials into a period of unprecedented growth. This presentation, titled delves into the lucrative prospects within this dynamic sector. We will explore how magnetic materials are revolutionizing safety protocols through advanced non-destructive testing (NDT) techniques, ensuring the integrity and longevity of critical infrastructure. As electromagnetic interference (EMI) from electronic devices continues to proliferate, the need for effective shielding solutions becomes critical, particularly in protecting human health. Textiles with embedded magnetic materials offer a versatile and practical approach to EMI shielding, providing both protection and comfort. This discussion will highlight the growing market potential for these advanced textiles in personal health protection, workplace safety, and everyday consumer products. By examining current market trends, technological advancements, and investment opportunities, we aim to provide industry stakeholders with insights into leveraging these innovations to enhance health protection, drive market growth, and achieve competitive advantage. Join us to discover how magnetic materials in textiles are set to revolutionize safety and health protection.

Innovations in Magnetic Field and Electric Current Measurement Based on SENIS’s Advanced Hall Sensor Technology
by Dragana Popovic Renella of SENIS Group, Switzerland

Pioneering advancements in magnetic field and electric current measurement are introduced, emphasizing SENIS’s advanced Hall sensor technology. Key applications, such as those at CERN, demonstrate the significance of these state-of-the-art devices. SENIS's vertical and horizontal Hall sensors lead the industry in magnetic field sensing, featuring a patented vertical Hall sensor with an exceptional noise voltage spectral density of 0.8 μV/√Hz at 1 kHz, offering an unparalleled signal-to-noise ratio. By integrating these sensors within CMOS technology, versatile 3D Hall sensors have been developed. The SENIS Low Noise Teslameter, equipped with the world’s smallest 3D Hall probe, delivers high-resolution, temperature-stable measurements. Additionally, the K3A cryogenic low-noise transducer operates at temperatures as low as 1 K, providing accurate measurements in confined spaces. Revolutionary tools like the SENIS 3D magnetic field mapper and SEN-3D-CAM camera offer high-precision field mapping and imaging. SENIS sensors and instruments are critical for precise, reliable measurements in advanced applications.

Chris Riley of Bunting Magnetics Europe

Antoine Daridon of Metrolab

Optimal Segmentation of Permanent Magnets for Electric Drives
by Philippe Scheuber and Mike Königs of Bomatec AG

To reduce the reliance on heavy rare earth elements in electric drives, OEMs are intensifying efforts to understand and mitigate eddy currents and therefore improve the segmentation of magnets. This presentation proposes and demonstrates optimization procedures from both technical and economic perspectives. Technically, we focus on optimal segmentation methods to reduce eddy currents, while economically, we aim to achieve the optimal cost-to-performance ratio.

Arnaud Pelletier of CMPHY

Mitrofan Curtis of TU/e

Looking inside magnets using magnetic field cameras and advanced data analysis
by Koen Vervaeke of Magcam

Magcam specializes in advanced quality control and characterization of permanent magnets and magnet assemblies using a powerful combination of magnetic field camera technology and proprietary data analysis software, aiming at extracting a maximum of information out of measured high resolution magnetic field distributions. This combination has resulted in many useful solutions to high end customer applications, ranging from optimizing the performance of permanent magnet race car motor/generators, over 100% production quality assurance of automotive magnetic position sensor systems, to selection of optimal miniature magnets for Swiss wrist watches. Even within the world of electric drives, different magnet applications require different measurement and data analysis strategies in order to get a consistent high quality end product. We present some spectacular examples of how different aspects of magnet quality are characterized for different end applications.

NPL

Luc Van Bockstal of Metis

Ester Palmero of IMDEA

Metrology for Magnetic Laminations and Power Electronics Cores: Loss measurement Techniques and uncertainties from DC to the microwave regime.
by Massimo Pasquale of INRIM ML Torino

Magnetic laminations and cores for power electronics play a crucial role in modern energy conversion systems, enabling efficient and reliable power transfer. Accurate measurements of the magnetic properties and losses in these laminations and cores is essential for optimal design and performance of motors, transformers and power electronics devices. This work provides an overview of the available international measurement standards, as well as examples of hysteresis loops and power loss figures obtained by broadband measurements on laminations as well as ferrite, nanocrystalline, and amorphous magnetic cores, encompassing different experimental setups and methods. The measurement techniques discussed in this presentation allow, in particular, for dynamic B-H measurement at different induction levels up to the MHz range and also for permeability measurements up to the GHz range. The energy losses are analyzed by the loss separation method, taking into account the eddy current and spin damping dissipation mechanism, besides the magnetic flux penetration issues. They are posed in direct relationship with the real and imaginary permeability components, by discriminating between domain wall and rotational contributions. Available measurement standards are discussed and the analysis of the measurement uncertainties is provided. Calibration procedures to assess and reduce the uncertainties arising from circuitry, instrument resolution, temperature, and environmental effects are considered. Since the DC-MHz frequency range is particularly relevant for power electronics, the power loss measurement techniques here discussed and the related uncertainties specifically address the challenges associated with this frequency range. Through their comprehension, engineers and researchers involved in the design and optimization of power electronics devices can make well-informed decisions. The insights provided in this presentation may directly contribute to the reduction of uncertainties in power electronics measurements, facilitating the development of more efficient and reliable energy conversion systems.

CERN's Scientific Programme and the Pivotal Role of Magnet Technology
by Mike Lamont of CERN

This presentation introduces the cornerstone elements of CERN's scientific agenda and outlines our strategic vision for the future. We will explore the essential functions and innovative applications of magnet technology within CERN's array of projects, sketching how these technologies not only support current scientific endeavors but also shape potential future developments.