Articles techniques et présentations

Recherche rapide

Ressources

Livres Blancs

Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

Terme recherché:

Simulation of a Scaled-up Deformable Mirror System Driven by MEMS-Based Lorentz Actuator Arrays

B. Park¹, A. J. Bergren¹, M. Belov¹, G .Burley², C. Shafai³
¹Nanotechnology Research Centre, Edmonton, Canada
²NRC-Herzberg Astronomy & Astrophysics, Victoria, BC, Canada
³Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB, Canada

This paper presents the design and simulation results of a MEMS-actuated deformable mirror (DM) consisting of a 20 × 20 Lorentz-force actuator array bonded to a flexible mirror. The DM is the critical component of an Adaptive Optics (AO) system targeted for ground-based telescope ... En savoir plus

Validation of a high-voltage relay for deep-sea applications using COMSOL Multi-Physics®

Y. Haba¹, Sascha Krohmann¹, S. Arumugam¹, S. Kosleck ¹
¹University of Rostock, Chair of Marine Technology, Germany

Abstract High-voltage relays currently used for deep sea applications must be designed for extreme underwater conditions. So, pertinent materials used, and the design procedures adopted are novel, innovative but expensive. Alternatively, the existing high-power electric switches, relays ... En savoir plus

Statistical Modeling and Contact Analysis of RF MEMS Surface

J. Liu [1], V. B. Chalivendra [1], C. Goldsmith [2], W. Huang [1],
[1] Department of Mechanical Engineering, University of Massachusetts - Dartmouth, Dartmouth, MA, USA
[2] MEMtronics Corporation, Richardson, TX, USA

Radio frequency (RF) micro-electro mechanical system(MEMS) switch works in on/off modes controlled by electrostatic forces. In off mode, rough surfaces of electrodes come into a contact to shunt the RF signal. Surface contact area has been recognized as a key factor in RF MEMS ... En savoir plus

Simulation of low energy electrons in Scanning Field Emission Microscopy (SFEM)

C.G.H. Walker¹, H.C. Cabrera¹, D. Pescia¹
¹Institut für Festkörperforschung, ETH Zürich, Switzerland

The study of low energy electrons (0-300 eV) and especially secondary electrons (typically < 50 eV) are of technical importance in many areas such as Scanning Electron Microscopes [1], spacecraft charging [2], the electron cloud effect in particle accelerators [3] and in radiological ... En savoir plus

Studies of the Yield of Back-Scattered Electrons in Scanning Field Emission Microscopy

H. Cabrera Cifuentes[1], G. Bertolini[1]
[1]ETH Zurich, Switzerland

Scanning field emission microscopy (SFEM) is a technique based on Topografiner [1] and Scanning Tunneling Microscopy (STM) [2] technologies. In this work, we do SFEM experiments to measure the electrons emitted by a sharp tungsten tip once they are back-scattered by a W(110) surface with ... En savoir plus

Modelling Electric Fields in High Voltage Submersible Changeover Switch

K. Follesø
Bennex AS, Bergen, Norway

Controlling electric field distribution in high voltage components is critical to avoid excessive electric stress on the insulation and thus reducing the risk of insulation breakdown and damage to equipment. For subsea applications this is even more important due to the costs involved in ... En savoir plus

Design and Analysis of Micro-tweezers with Alumina as Gripper Using COMSOL Multiphysics

V. S. Selvakumar, M. S. Gowtham, M. Saravanan, S. Suganthi, and L. Sujatha
Rajalakshmi Engineering College
Chennai, India

Micro-tweezers have been widely investigated because of their extensive applications in micro-fluidics technology, microsurgery and tissue-engineering. It has been reported that thermal actuation provides greater forces and easier control when compared to electrostatic micro actuation. ... En savoir plus

Design of MEMS Based 4-Bit Shift Register

V. B. Math[1], B. G. Sheeparamatti[1], A. C. Katageri[1]
[1]Basaveshwar Engineering College, Bagalkot, Karnataka, India

This paper presents a unique design of MEMS based 4-bit shift register that perform shifting operation same as logic devices that are composed of solid-state transistors. The MEMS shift register design inherits all the advantages from MEMS switches and thus is expected to have more ... En savoir plus

Finite element simulation for electronics

Y. Mizuyama
Panasonic Boston Laboratory, Newton, MA, USA

Dr. Yosuke Mizuyama is a Lead Engineer at Panasonic Boston Laboratory. He has been working on various electronics for Panasonic Corporation in Japan for many years. His research includes incandescent/fluorescent lamp, electrostatic/pzt inkjet, MEMS and BD/DVD/CD optical drive. His ... En savoir plus

Modeling PIN Photodiodes

R.W. Pryor
Pryor Knowledge Systems Inc., Bloomfield Hills, MI, USA

This paper presents one approach to the modeling of an abrupt junction PIN photodiode light sensor using COMSOL Multiphysics software and the incorporated SPICE® capability. The current model is built using the capabilities of SPICE in COMSOL Multiphysics 4.0. This model demonstrates the ... En savoir plus

Premier

111–120 of 483

Dernier