Free online simulation resource provides fast results with high accuracy and configurability for magnetic position sensor design, covering linear and rotary modes of operation
Mathematical Models of 3D Magnetic Field and 3D Positioning System by Magnetic Field Dong Lin∗ and Xin Chen College of Physics and Information Engineering, Fuzhou University, Fuzhou, Fujian, P. China Received: 21 Jul. 2013, Revised: 23 Oct. 2013, Accepted: 24 Oct. 2013 Published online: 1 Jul.
Magnetic Field around a Circular Wire. DongJoon 2019-05-25 Electromagnetism Simulation. The magnetic field is the area surrounding a magnet in which the magnetic force exists. The magnetic field is also formed around the conductor through which the current flows. Erni, “openEMS – A free and open source equivalent-circuit (EC) FDTD simulation platform supporting cylindrical coordinates suitable for the analysis of traveling wave MRI applications,” International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, online, DOI:10.1002/jnm.1875, Dec.
Tessenderlo, Belgium, 1 July 2021 - Melexis has introduced a free, online simulation tool for magnetic sensor evaluation and module design. The online tool gives customers’ engineering teams the ability to design and simulate their own magnets based on Melexis’ Triaxis® 2D/3D sensors. By using the simulation application, engineers can quickly design a custom magnetic sensor module to their own specification.
Melexis, a global microelectronics engineering company, has developed a free online simulation application for its Triaxis® range of magnetic sensors, covering both linear and rotary applications. It simulates the sensor’s performance in a customer’s application with a high level of accuracy, including stray field immunity. Simulation with this level of accuracy can significantly improve and accelerate the design cycle of sensor modules.
“Simulation software has become an incredibly powerful and useful resource for engineering teams,” commented Jerome Degois, Regional Marketing Manager at Melexis. “Melexis has developed this online simulator to give customers fast, accurate results at the earliest possible stage in a project’s design. It delivers greater accuracy than other simulators, as it has been specifically developed to simulate how the Triaxis® 2D/3D magnetic sensor will react when used with a wide variety of magnets.”
Simulating multipole magnets is not simple, as it involves complex physics. As a result, simulators with this level of functionality are not generally available from manufacturers at no cost. Melexis has taken the decision to make its simulation tool free to use and include as much simulation capability as possible. This makes it much more complete than competitors’ tools, as it provides results that are closer to how a real sensor would perform.
The online simulation tool covers mechanical and magnetic design, for both linear and rotary modes of operation with or without stray field immunity factored in. No other free-to-use simulation tool can match these features. The tool also supports real-time design by providing results as soon as any parameter is modified. Based on the Streamlit framework and the Python library for analytical formulas for simple magnetic shapes (magpylib), Melexis has extended this foundation to create a catalogue of magnets that customers can use to develop and simulate their own unique applications.
The simulation tool will be live and free to use from July 1st 2021.
Access it here: www.melexis.com/magnetic-design-simulator
2D & 3D Magnetic Field Simulation Modeling
State-of-the-art Risk Mitigation Technology
We provide plan-view and elevation view magnetic field simulation modeling of building electrical systems: Simulation modeling at a 50% and 75% building loads. These EMF simulation models illustrate the magnetic emissions profile as a 2D horizontal or vertical plane through the building. The sophisticated computer model calculates the magnetic emissions profiles as a function of magnitude and distance from the numerous electrical sources.
The computer generated building EMF simulation models can incorporate elements such as: transformers, switchboards, panels, feeders, automatic transfer switches (ATS) and more.
Source Modeling
Source modeling shows individual electrical elements and the potential impact on nearby sensitive EMI instrumentation and equipment. This type of computer modeling can assist in the placement for future equipment to optimize the use of building space and reduce the need for magnetic mitigation.
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Electrified 50/60 Hz AC and 600 VDC Traction Current Simulation Modeling
Simulated future underground train and subway commuter tunnels can impact adjacent buildings with EMI sensitive instrumentation. The figure below shows a 25-0-25 kVA traction current underground catenary rail system emission profile.
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The auto-transformer style traction system creates certain mitigation design challenges. The computer generated emission profile from the railway can be utilized to provide guidance to developers for placement of the railway to not only reduce electromagnetic interference for sensitive imaging equipment but also for human health purposes.
Electrified DC Third-Rail System
In addition to alternative current (AC) traction systems Vitatech also provides magnetic field simulation modeling of direct current (DC) traction systems. The figure below shows an elevated third-rail 600 VDC electrified train adjacent to a medical research building.
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DC traction systems are typical in urbanized environments.