Highly precise prediction of losses remains a major challenge in electric machine design. That is why engineers are always searching for new material models and other tools. Regardless of the type of development or use, exceptionally reliable material measurement data is crucial. Material measurement technology influences the reliability of loss prediction.
Measurement technology continues to evolve. Active use of the latest technology can increase the reliability of loss predictions.
This workshop invites experts from each material field to delve into the latest technology in their respective specialties. The forum will strive to become a venue to engage participants in a discussion about the best way to leverage these technologies in order to overcome the practical challenges of today.
We look forward to seeing all of you.
Overview
| Organizer | JSOL Corporation |
|---|---|
| Dates | 11:30am – 7:00pm on Tuesday, March 24, 2026 |
| Venue |
Science Hall Bldg#1 Kyoto research park 134 Chudoji Minami-machi, Shimogyo-ku, Kyoto City, Kyoto 600-8813, Japan (MAP ) |
| Capacity | 70 seats available (Availability increased due to the popularity!) |
| Beneficial to: |
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Program
| Time (JST) | Title/Description |
|---|---|
| 11:30 am | Registration/Exhibition/Poster Sessions
JMAG Live Demonstrations JMAG is continually expanding features to drive design automation and heighten accuracy.
Participants can also visit the exhibition and poster sessions happening alongside the JMAG live demonstration. We encourage everyone to arrive a little early to take advantage of these great opportunities. |
| Time (JST) | Title/Description |
|---|---|
| 12:30 pm | Registration/Exhibition/Poster Session |
| 12:50 pm | Opening Remarks |
| 12:55 pm | Expectations of Measurement Technologies (Use Case with Measurement Data Necessary for Anomalous Loss Modeling) Takashi Yamada JSOL Corp.
This session takes a look at the impact of material measurement accuracy on simulations through specific measurement data. Play models and other new modeling methods can now reproduce minor loops and other complex phenomenon in simulations. However, each of these approaches requires complex measurement data, which in turn necessitates highly precise measurements. A deeper understanding of measurements has become more essential than ever for anyone involved in running simulations.
The session shares first-hand insight into the difficulties of dealing with measurement data used to model anomalous eddy current losses from a simulation perspective. The content should not only spark a discussion about the importance of understanding but also the expectations of measurement technologies going forward.  |
| 1:25 pm | Iron Loss Measurements under Distorted Flux Produced by Asymmetric Minor Loops Dr. Koji Fujiwara Professor, Dept. of Electrical Eng., Faculty of Science and Eng., Doshisha University
Asymmetric minor loops are the primary cause of magnetic flux density waveform distortion in real motor cores. Iron loss measurements have been taking into account the sinusoidal magnetic flux density for many years. Ideal models that ignore distortion of magnetic flux properties of the core caused by processing error has been seen to obtain the practical accuracy necessary for these measurements. However, there still is no established method for practical measurements that can account for asymmetric hysteresis loops observed in PWM-fed machines.
Magnetic property measurements can control the distortion of the magnetic flux density waveform in a material sample caused by asymmetric minor loops inherit to the necessary maximum magnetic flux density and alternating current amplitude to isolate the results into the asymmetric minor loop and outline loop. This session looks at the success of iron loss measurements taken under distorted magnetic flux density conditions to calculate the hysteresis as well as eddy current losses for the asymmetric minor loop and outline loop.  |
| 2:15 pm | Exhibition/Poster Sessions |
| 2:45 pm | Method to Evaluate Magnetic Material Properties Mr. Masahiro Iwata GENERAL MANAGER, DEVELOPMENT.DEPUTY, DENSHIJIKI INDUSTRY CO.,LTD.
One method to evaluate magnetic material properties is to obtain the hysteresis loop (BH curve).
This session describes the information gleaned from BH curves and an approach to obtain the BH curve through measurements of ring material sample. The presentation also examines practical examples, such as the measurement of minor loops as well as DC superimposition characteristics simulated in real environments. This session should benefit anyone considering these types of magnetic property evaluations or those struggling with magnetic measurements.  |
| 3:15 pm | Analytical Approach to Magnetic Property Measurement of a Ring Material Sample and Calculation of Eddy Current Loss Resistance Prof. Tetsuji Matsuo Professor, Department of Electrical Engineering, Graduate School of Engineering, Kyoto University
Magnetic property measurements using ring samples generally calculates the BH characteristic from the relationship between the average magnetic field and average magnetic flux using the appropriate magnetic path lengths. Nevertheless, magnetic property measurements results in error if the ratio between the inner and outer diameter of the ring sample is not close to 1. This session introduces an analytical approach to accurately calculate the BH characteristics without using averages. The approach not only enables accurate measurement of normal magnetization curves but also BH loops.
Eddy current loss in a classical eddy current model is often expressed through the parallel conductance. Anomalous eddy current loss in the Bertotti model expresses the anomalous eddy current losses through the nonlinear parallel conductance. The conductance or coefficient of both measurement results vary with B. Therefore, this session presents an analytical approach to identify the influence of B on the eddy current conductance/coefficient from the results of loss measurements using a sinusoidal input.  |
| 3:50 pm | Exhibition/Poster Sessions |
| 4:10 pm | Configuration of a Magnetic Property Measurement System Using dSPACE Real-time Waveform Control: Joint Study of Hysteresis Using Play Models Mr. Kengo Sugahara Associate Professor, Faculty of Science and Engineering Department of Electric and Electronic Engineering, Kindai University
Modern electric machine design requires high-accuracy magnetic field analyses that takes into account magnetic hysteresis. The play models emphasized in this research use magnetic field H and magnetic flux density B as input parameters and are analytically equivalent to Preisach models. Current finite element analysis approaches treat H and B as independent variables. However, the selection of input parameters in complex magnetization processes have shown inconsistencies in the analytical results. That is why it is necessary to figure out how to accurately reproduce the actual material properties, which requires complex waveform control and a significant amount of time. This research has configured a measurement system using dSPACE. The new dSPACE system can efficiently reproduce verification testing.
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| 4:45 pm | Closing Remarks |
| 5:30 pm | Meet-and-Greet |
*These sessions are subject to change without notice.
Exhibitions
BRIGHTEC Co., Ltd .
Magnetic Property Measurement System for More Accurate Material Databases
BRIGHTEC offers magnetic property measurement systems and stress load single plate magnetic testers to obtain more accurate data.
[Magnetic Property Measurement System (Magnetic Flux Waveform Control System Bcon)]
- Bcon 10 Hz to 400Hz
- Bcon-HF 40 Hz to 100kHz
[Stress Load Single Plate Magnetic Tester (S-SST)]
- Two sample sizes: 30 mm × 320 mm; 60 mm × 360 mm
Metron Giken Co., Ltd.
Iron Loss Measurement of Amorphous Materials/Electrical Steel
This booth focuses on iron loss measurements for amorphous materials and electrical steel used in motor cores.
Metron Giken is a company that offers solutions for magnetic property and motor performance evaluations.
Oita Industrial Research Institute (OIRI)
ISO/IEC 17025-certified Magnetic Property and Magnetic Material Testing
OIRI is an ISO/IEC 17025-certified testing and calibration laboratory (international requirements for the competence of testing and calibration laboratories) for JIS C 2550-1 5 and JIS C 2556 4 iron losses in the category of magnetic property testing. Its laboratories support everything from certified to various magnetic material property tests to provide comprehensive support of electromagnetic machine development from the selection of materials to the design, manufacturing and evaluation. This exhibition presents specific research and development as well as technical support case studies. OIRI welcomes any consultations about magnetic measurements or questions about issues with magnetic technologies.
JFE Techno-Research Corporation
Magnetic Measurement & Analysis Technologies Supporting the Development of Electric Machines
JFE-Tec continues to implement and upgrade the latest technologies to help solve technical issues as your best partner for Monodzukuri. This booth introduces solutions for the development and design of electric machines that are unique to JFE-Tec.
- Evaluation of magnetic properties at the high-frequencies and high magnetic flux densities used in large-capacity excitation power supplies
- Magnetic property and machine characteristic testing of amorphous and nanocrystalline soft magnetic materials
- Magnetic property evaluations of electrical steel and amorphous materials under tensile and compressive stress
- Magnetic property evaluations of permanent magnets using superconducting VSM
- Eddy current loss evaluations of permanent magnets
- Various custom motor test bench evaluations (air-gap flux, rotor distortion, and axial voltage),
etc.
Iwatsu Electric Co., Ltd.
SY-8264: World’s First Wide-band Alternating B-H Analyzer
Iwatsu Electric provides systems for high-accuracy magnetic property evaluations in a wide-range of applications from research and development through manufacturing. This booth introduces its new wide-band 30 MHz alternating current B-H analyzer on sale from the end of March that significantly increases measurement accuracy in the high-frequency region compared to conventional systems.
The new SY-8264 realizes ±0.15° phase accuracy up to 1 MHz (representative values) and ±0.30° phase accuracy at 30 MHz (single-turn coil method/representative values). In addition, the new system enables double-coil measurements up to 30 MHz (Iwatsu Electric guarantees accuracy up to 10 MHz due to drastic changes in measurement results using the coil method at high-frequencies).
The Iwatsu Electric exhibition will display conventional systems and provide in-depth explanations about the varying error of conventional and new systems.
Magnetic Property Evaluation and Motor Magnetization Systems
Denshijiki Industry has engaged in the research, development and manufacture of various systems in non-destructive testing for magnetic materials, magnetization/demagnetization of magnets and other magnetic materials, and magnetic measurement of low to high magnetic fields. The Denshijiki Industry exhibition will present some of the applied magnetics technology cultivated through its history.
BH-1000 BH analyzer: Magnetic property evaluation system necessary to evaluate magnetic materials
Mv-zero magnetic visualization system: System to visualize magnetic fields in space
The booth will also present magnetization devices necessary for motor magnetization.
Denshijiki Industry welcomes consultations and questions about magnetic measurements and magnetization.
Poster Session
- Considerations in Material Modeling Accounting for the Effects of Residual Strain
- Necessity of Iron Loss Evaluations Accounting for the Effects of Stress
- Magnetic Field Analysis Accounting for Two-dimensional Magnetic Anisotropy of Electrical Steel
- Effects of Actual BH Loop Geometry on the Analysis Results of Play Models
- Considerations for Higher Accuracy and the Application Range of Iron Loss Analysis Using the 1D Method
- Considerations for Anomalous Eddy Current Loss Modeling Suitable for the Magnetic Flux Density Waveform
- Irreversible Thermal Demagnetization Analysis of Permanent Magnets
- Magnetization Modeling of Permanent Magnets
This English translation has been prepared by JSOL Corporation and is provided for informational purposes only.
In the event of any discrepancy, the Japanese original text shall prevail.
