See How Multiphysics Simulation Is Used in Research and Development

Ici vous trouverez les présentations issues des Conférences COMSOL à travers le monde. Réalisées par des utilisateurs de COMSOL Multiphysics, ces présentations explorent tous les domaines actuels d'innovation. Les applications couvrent pratiquement tous les secteurs industriels et impliquent des phénomènes électriques, mécaniques, fluidiques et chimiques. Utilisez la recherche rapide pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt.
Consultez les proceedings de la Conference COMSOL 2018
MEMS and Nanotechnologyx

Designing the Actuator for the Next-Generation Astronomical Deformable Mirrors: a Multidisciplinary and Multiphysics Approach

C. Del Vecchio[1], R. Biasi[2] , D. Gallieni[3], and A. Riccardi[1]

[1]INAF-OAA, Fierenze, Italy
[2]Microgate Srl, Bolzano, Italy
[3]ADS International Srl, Valmadrera, Italy

The actuation system of the deformable mirror is one of the crucial components of an Adaptive Optics unit. One possible implementation comprehends a linear force motor and a capacitive sensor providing the feedback measure signal. Choosing a magnetic circuit that makes optimum use of the ... En Savoir Plus

A Methodology For The Simulation Of MEMS Spiral Inductances Used As Magnetic Sensors

S. Druart, D. Flandre, and L.A. Francis
Université catholique de Louvain - ICTEAM, Louvain-la-Neuve, Belgium

In this paper, a methodology to simulate the electric behavior of spiral inductances is presented and discussed. All the methodology is built with the COMSOL software used with the Matlab scripting interface and then allows performing fully parameterized simulations. The program ... En Savoir Plus

Simulation of Thermal Sensor for Thermal Control of a Satellite using COMSOL

G. Mangalgiri
BITS Pilani
Zuarinagar, Goa

Spacecrafts have a prime necessity that their temperature be controlled. This paper presents the simulation of a mechanically actuated field effect transistor that is used in a thermal system. It comprises of a composite beam, a piezoelectric substrate and a field effect transistor. The ... En Savoir Plus

Design and Simulation of MEMS based Thermally Actuated Positioning Systems

D. Mallick[1], P. K. Podder[1], A. Bhattacharyya[1]
[1]Institute of Radio Physics & Electronics, University of Calcutta, Kolkata, India

With continuous advancement in nanotechnology, requirement is rising for high precision motion controlled positioning system. Such system plays crucial role in the fabrication of micro and nano-sized objects and assemblies. They can be used for automated mask aligner, as biological ... En Savoir Plus

Actively Controlled Ionic Current Gating In Nanopores

G. Zhang[1], S. Bearden[1]
[1]Clemson University, Clemson, SC, USA

It is necessary to understand and control nanopore behavior in order to develop biosensors for a variety of applications including DNA sequencing. The fluidics of nanopore devices we fabricated exhibits a range of interesting phenomena, such as enhanced conductance and current ... En Savoir Plus

Design and Simulation of an Orbiting Piezoelectric MEMS Gyroscope Based on Detection of Phase-Shift Signals new

S. Gorelick[1], J. R. Dekker[1], B. Guo[1], H. Rimminen[1]
[1] VTT Technical Research Centre of Finland, Espoo, Finland

The feasibility of phase-sensitive detection of angular-rates using bi-directional orbiting piezoresonators suspended by thick annular springs with thin-film aluminium nitride piezoactuators on top of them was investigated. The ring-shaped flexures are more suitable for supporting the ... En Savoir Plus

Modeling of the Clamping Fixture of a Piezoelectric Cantilever-type Energy Harvesting Device

T. Hoang [1,2], G. Poulin-Vittrant [2], G. Ferin [1], F. Levassort [2], C. Bantignies [1], A. Nguyen-Dinh [1], M. Bavencoffe [2]
[1] Advanced Research dept., VERMON S.A., Tours, France
[2] GREMAN UMR 7347, Université de Tours, CNRS, INSA Centre Val de Loire, Blois, France

Over the last decade, ambient vibration energy harvesting by piezoelectric materials has been an area of extensive research. This technology enables to convert wasted mechanical energy available in our environment into useful electrical energy to power up autonomous wireless sensors ... En Savoir Plus

MEMS Test Structures for Residual Stress Measurements

A. Sharma[1], K. Rangra[1], M. Kaur[1], and D. Kumar[2]
[1]Central Electronics Engineering Research Institute, Pilani, Rajasthan, India
[2]Kurukshetra University, Kurukshetra, Haryana, India

A set of microstructures for in situ stress measurement is presented, based on a lancet principle having dedicated designs for the amplification of dimensional variation induced by internal stress of the materials. The presented technique has an advantage over the traditional rotating ... En Savoir Plus

Passive Microsensor Based on LC Resonators for Substance Identification

D.A. Sanz Becerra[1], E.A. Unigarro Calpa[1], J. Osma[1], F. Segura[1]
[1]Universidad de los Andes, Bogotá, Colombia

A scheme for inductive wireless powering and readout of passive LC sensor is presented. The sensor’s inductor is designed as a planar square coil and is used as the power receiving component. The capacitor is connected directly to the inductor and it was designed as an interdigital ... En Savoir Plus

Modeling and Simulation of MEMS Based 3D Vibrating Gyroscope for Mobile Robotics Applications

M. Ramya, R. P. S. Valli, R. Vidya, G. Anju, and M. Alagappan
PSG College of Technology
Tamil Nadu, India

In this study, a biomimetic vibrating 3D MEMS Gyroscope is designed, consisting of two circular diaphragms with a club shaped structure placed over one of them. This MEMS based vibrating gyroscope was modeled and simulated using COMSOL Multiphysics 4.1 - MEMS module. The purpose of ... En Savoir Plus