TMR Angle Sensor Simulation

Learn more about magnetostatic 3D simulation for new TMR angle sensor applications. Such magnetic sensors are deployed today in automotive electronics, as well as in many new industrial, consumer-product, medical, avionics, defense and other applications. With Flux 3D, several effects of the influence of magnet geometry parameters and mechanical tolerances of sensor positioning were investigated, such as airgaps and tilts effects. The results include optimum solutions useful for TMR, as well as for a wide range of other angle sensor types and applications.

During initial magnetostatic simulations of TMR angular sensors operating in tandem with standard disk magnets using Flux 3D software, optimal solution ranges were very quickly determined. Optimal diameter range and airgap range, as well as optimal height/diameter ratio range and tilt tolerances were obtained. Consequently, replacement of Hall sensors with new TMR sensors in a classic on-axis angular configuration was successful. We fully verified our previously-filed patent application on standard and redundant TMR position sensors together with materials, which allow us to prepare new patent applications. Additionally, we investigated not only a standard magnet disk shape, but some special magnet shapes were investigated too. More details will be published later when our dynamic and multiphysics simulations are ready.

Read more in the following article

3D BX isovalues on 2D sensor grid with airgap 0,5mm and 4,5 mm.


0,5 mm airgap


4,5 mm airgap









Biba A. Bedi
Biba A. Bedi

About Biba A. Bedi

Biba has a background in business operations support functions of contract program management, human resources, key financial operations, marketing and communications. She joined Altair as a result of Altair’s acquisition of EMSS in 2014 and her current role of Director Corporate Communications and Client Relations includes management, coordination and production of the global Success Story pipeline, authoring success stories for HyperWorks®, content production support and author relations management for Altair Corporate magazine Concept to Reality (C2R), development of press releases, Altair newsletter A60 production, support integration and advancement of blog and social media strategy. She is the Corporate/Americas media POC, as well as presenter liaison for corporate technology conferences. She holds a Bachelor’s degree in Liberal Arts from St. Bede’s College (Himachal Pradesh University), in Shimla, India.