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Electromagnetics Blog Posts

How to Model a Hall Effect Sensor with COMSOL Multiphysics®

March 11, 2021

Basic working principle of a Hall effect sensor: A nearby magnetic field deflects the path of current through a semiconductive sensor, which causes a measurable change in potential.

A Quiet Revolution: Analyzing Electric Motor Noise via Simulation

March 2, 2021

The sound we hear from electric-powered machines is a multiphysics phenomenon: A motor’s electromagnetic activity sends vibrations through both the machine and the surrounding air.

Analyzing Electric Motor and Generator Designs with COMSOL®

February 16, 2021

Using electromagnetics simulation, you can investigate and optimize the magnetic field distribution, mechanical torque, and iron usage and losses in a permanent magnet motor or generator.

Computing Losses in a Three-Phase Power Transformer

February 4, 2021

Around the world, power transformers are used in power grids for efficient electric power transmission. EM simulation can be used to compute losses in these devices and optimize their designs.

Simulating a Silicon Quantum Dot in a Uniform Magnetic Field

January 26, 2021

Solar cells, LEDs, displays, photodetectors, and quantum computing are all potential applications of quantum dots, an essential aspect in the field of nanotechnology.

How to Analyze Turbomolecular Pumps with COMSOL Multiphysics®

January 12, 2021

Modeling gas flow in a turbomolecular pump calls for specialized numerical methods, because at such low pressures, the gas molecules rarely collide with each other.

2020 Isaac Newton Medal and Prize Awarded to Nader Engheta

December 16, 2020

Get an overview of the Isaac Newton Medal and Prize — and the optical physicist who won this year.

Investigating Magnetic Field Exposure Near Transmission Lines

December 14, 2020

Electromagnetics simulation can be used to predict and investigate magnetic field exposure around power transmission lines and other electrical infrastructure.

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