Les derniers témoignages des utilisateurs COMSOL sont disponibles dans COMSOL News et Multiphysics Simulation.
Keeping LEDs Cool Gets More Manageable Through Simulation
Light-emitting diodes (LEDs) offer many benefits over incandescent lighting, such as long life spans and high luminous efficiency, and they are environmentally friendly. One of the drawbacks, however, is that LEDs need to operate at the lowest possible temperatures and this must be ... En savoir plus
Dielectric Stress Simulation Advances Design of ABB Smart Grid-Ready Tap Changers
Consumers of power rely on fairly stable voltages. Transformers contain tap changers which vary the ratio of secondary to primary turns by switching the point at which either the input or output circuits are connected. Changing this ratio enables stepped voltage regulation of the output. ... En savoir plus
Multiphysics Software, a Versatile, Cost-Effective R&D Tool at Sharp
There are several kinds of technology that designers at Sharp Laboratories of Europe work to create. From LED lighting, displays, and microfluidic lab-on-a-chip technology, to complex energy systems used in various devices, Sharp needed a new approach to finding the best designs. COMSOL ... En savoir plus
Picking the Pattern for a Stealth Antenna
Stealth airplanes and ships avoid radar detection by optimizing the shape of surfaces to reflect away from the radar source or absorb its energy. Yet, if a ship or aircraft’s antenna for communication purposes is to operate properly, it cannot be completely covered up. This makes it one ... En savoir plus
Analysis of Spiral Resonator Filters
As the world becomes more digital, there is growing demand for advanced wireless systems. Increasingly high data rate transmission systems mean that components like microwave filters must fit into smaller and smaller spaces, and multiple filters need to be integrated into compact ... En savoir plus
Silent Air Cooling: A New Approach to Thermal Management
Removing heat from electronic devices is a necessity that up until now was achieved by rotary fans. Tessera, a company that delivers innovative miniaturization technologies and products for next-generation electronic devices, developed a replacement for rotary fans that can satisfy ... En savoir plus
When it’s Impossible to Take Actual Measurements, Multiphysics Provides the Answers
To contain splashes and provide protection at plants where metal is fabricated, blast furnace runners need a roof made of cast iron and concrete. Terres Réfractaires Du Boulonnais, a manufacturing company in France, has hundreds of blast furnaces with a short functional lifespan, so ... En savoir plus
Understanding the Origin of Uncertainty in Thermometer Calibration
Thermometers have widespread application and like any measurement device, they must be calibrated. Many do this with the International Temperature Scale of 1990 (ITS-90), which is a platinum resistance thermometer that calibrates using a fixed point cell, which is a container with a well ... En savoir plus
Sonar Dome Vibration Analysis
There has been a recent move towards utilizing bulbous bows on ships to house different types of sonar systems, but it is not definite how much structural vibration might interfere with the functioning of a transducer array inside the sonar dome. INSEAN, the National Institute for ... En savoir plus
Highly Accurate Li-ion Battery Simulation
Battery management systems (BMSs) are designed to protect the batteries and predict their charge level. They use circuit models often derived from electrochemical impedance spectroscopy (EIS) measurements to construct an equivalent circuit model (ECM) that consists of resistors and ... En savoir plus