Articles techniques et présentations

Introduction: Medical devices undergo a series of evaluations in order to determine their performance and level of safety in a magnetic resonance (MR) environment. The standard of focus for this work is ASTM F2052-15 which measures the induced displacement of a device due to the ... En savoir plus

As the importance of nanoparticles is growing more and more, controlling and understanding the properties of nanoparticles became a focus of research. In this field Meyer at al. [1] are researching the GMR effect in granular gels to develop magnetoresistive sensors. The GMR in granular ... En savoir plus

Introduction Computer simulations are widely used for the interpretation and inversion of electromagnetic measurements in well logging. Until recently, simulated logs have been computed with approximate 1D or 2D models. By using the COMSOL® RF Module installed on a cluster, we show that ... En savoir plus

The optical fiber communication has been popular topics besides robot study nowadays. In the process of the Dense Wave-Length Division Multiplexing (DWDM) study, the dispersion compensate for the traditional optical fiber is difficult to solve for long distance transport information. It ... En savoir plus

Pasteurization of solid food undergoing ohmic heating has been analyzed using COMSOL Multiphysics on the basis of a previously validated multiphysics model. The simulation of pasteurization by ohmic heating involves simultaneous solution electrical potential within the food, heat ... En savoir plus

During a practical course the students compare the measured frequency response of an assembled PCB (Printed Circuit Board) with the simulated data out of COMSOL Multiphysics® software. For this the whole PCB with all components are feed in the simulator and afterwards an eigenfrequency ... En savoir plus

Although the Near Field Communication (NFC) concept has been developed for the short distance communication between the NFC-reader antenna and transponder/Tag, yet the requirements of different Automotive OEMs vary drastically. For instance, for the keyless entry into the car based on ... En savoir plus

MEMS压阻式压力传感器的输出特性易受温度的影响，而通常温度补偿技术具有复杂的校准过程，为了使其具有成本效益，通过保持传感器在恒定温度下运行来替代温度补偿技术。本案例中，通过集成MEMS加热电阻器来控制MEMS压力芯片的温度，使MEMS芯片的温度保持在恒定温度。 本案例第一个研究模拟了不同环境温度对MEMS压阻式压力传感器输出特性的影响；第二个研究模拟了MEMS加热电阻的电热产生、传热以及机械应力和变形。模型同时使用了“传热模块”的“固体传热”接口、“AC/DC模块”的“电流，壳”接口以及“结构力学模块”的“固体力学”和“膜”接口。 ... En savoir plus

This poster presents an evaluation study of a couple of heat trap designs, analyzing the generation of Joule heating and heat dissipation characteristics. Through parametric simulations of the heat traps varying geometries, it is possible to see the generated temperature difference at a ... En savoir plus

This paper presents a study on the application of Direct Numerical Solving (DNS) techniques using an experimental scale model. COMSOL Multiphysics is promising in solving dynamic heat and air transport. The experiments can be extremely useful as benchmark for CFD codes. En savoir plus