Electromagnetics Blog Posts
Magnetic Damping of a Vibrating Cantilever Beam
We discuss modeling a cantilever beam in a magnetic field. The beam has some structural excitation at the free end, which vibrates it at a constant frequency. Get details in this blog post.
Detecting Dark Matter Axions with a Microwave Cavity
The Axion Dark Matter eXperiment (ADMX) uses a microwave cavity in an attempt to detect dark matter axions. Learn more about this project and how simulation can be applied to it.
Analyzing Capacitive Touchscreens in Consumer Electronics
Most of us use multiple touchscreen devices throughout the day, from our smartphones to the ATM. Learn how to use electromagnetics modeling to study capacitive effects in these devices.
New Piezoelectric Modeling Interface in COMSOL 5.0
As of version 5.0 of COMSOL Multiphysics®, there is a new interface for simulating piezoelectric devices; it has predefined features that make it easy to set up and run a piezoelectric model.
Ray Tracing in Monochromators and Spectrometers
Spectrometers are optical devices that measure some property of radiation as a function of its frequency, while monochromators transmit radiation of a specific frequency.
Modeling a Surface Micromachined Accelerometer
There are plenty of MEMS manufacturing techniques, but surface micromachining is preferred because it can merge electronic components and freely moving mechanical parts onto one substrate.
Fillet Away Your Electromagnetic Field Singularities
Did you know that you can use fillets and chamfers in your electromagnetics models to avoid electromagnetic field singularities? Learn how in this tutorial blog post.
Modeling Beam Neutralization with a Charge Exchange Cell
A charge exchange cell refers to an area of high-density gas that is placed in the path of an ion beam. You can model a charge exchange cell to analyze its neutralization efficiency.