Electrical

Phil Kinnane | September 18, 2012

In short, electronic computer-aided design (ECAD) is typically used to design and develop electronic systems. Although it’s a mere letter away from spelling out “CAD”, there’s actually more to the story than appending the word “electronic” to “CAD”. So what is ECAD and why is it used in Finite Element Analysis (FEA)?

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Valerio Marra | July 30, 2012

All this talk about piezoelectricity got me thinking about how surrounded we are by everyday items whose performances rely on this physical process. Examples include inkjet printers, speakers, electric guitars, and ultrasound imaging systems. With so many different common objects utilizing this phenomenon, it may lead you to wonder: what is piezoelectricity?

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Phil Kinnane | July 24, 2012

Looking for a tutorial on how to model a MEMS problem? We have recently added a video tutorial using the example of how to simulate a capacitive pressure sensor to our video gallery. For a brief overview of what you can model in the MEMS Module watch the trailer below, or go straight to the bottom of this post for a link to download the model files, which show how to produce this type of electromechanics model.

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David Kan | May 29, 2012

On the 17th of May, 27 engineers and scientists related to the oil and gas industry gathered in Northwest Houston to learn more about COMSOL Multiphysics applications for well logging. This area of research and development is of particular interest to the oil services companies, who make tools that help maximize the output from wells. These tools are highly advanced technological devices. They work by being inserted into a wellbore and detecting how much hydrocarbon (e.g., oil) is in the […]

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Phil Kinnane | April 24, 2012

I’ve just been reading my favorite news service, www.physorg.com, and noticed that cloaking is once again the topic of the day. While we have previously reported on a group out of Duke University, this article mentions a group from Ames Laboratory in Iowa. Similar to the Duke Group, Costas Soukoulis from Ames Laboratory also seems to have been at the forefront of this research.

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Phil Kinnane | April 4, 2012

I had previously blogged about Thermal Cloaking, which uses layers of aluminum and paper to create an anisotropic structure and cloak a desired object. This differs from the “traditional” type of cloaking, of light and electromagnetic waves, which make use of metamaterials or layered structures that impose a negative refractive index to make the cloaked object appear transparent.

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Phil Kinnane | March 30, 2012

A couple of days ago I blogged about the team at Lahey Clinic who are using COMSOL Multiphysics to model their neuromodulation therapy of patients. In their example, they place electrodes close to the spine and, through electric current, stimulate the area around these electrodes to relieve back pain. The reason why modeling is important for them is because it’s quite difficult to actually access these treatments to measure their effectiveness and possible detriments.

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Phil Kinnane | March 28, 2012

After I wrote about a group from EPFL, Lausanne, Switzerland in a previous blog post, “Modeling Lightning Strikes is a Multiphysics Problem”, I checked to see if anyone from this group has presented at our conferences. It was great to find that Dr. Abdolhamid Shoory in fact has done so, with a paper titled: “Using COMSOL to Solve for Currents along a Thin-Wire Antenna Excited by a Lumped Source”.

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Phil Kinnane | March 23, 2012

There is a site that is dedicated to “The Physics of Lightning Flash and Its Effects” whose goals are to “increase the knowledge of the physics of the lightning discharge and of its effects on natural and man-made systems”. It was here that I was pleasantly surprised to find a presentation by a group from EPFL, in Lausanne, Switzerland, and The University of Bologna in Italy.

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Phil Kinnane | March 9, 2012

I’ve been blogging quite a bit about RF models the last few weeks. This is because, lately, we have been producing quite a number of them. A press release that was published yesterday summarizes this work: “Tutorial Package Has 20 New Models for Antenna Design, Plasmonics, and Benchmarking Electromagnetics Simulations”.

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Phil Kinnane | March 8, 2012

Many devices live with a dry, technical name that either basically says what the device does, or is an acronym of that dry, technical name. Very few get a nickname that sticks to become the industry standard.

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