Consultez les proceedings de la Conference COMSOL 2020
Fiber optic sensors have been designed for applications ranging from simple proximity detectors to state of the art inertial navigation systems. The optical sensing technique used in each of these applications depends primarily on the requirements. Fiber Bragg Grating Laser (FBGL) based ... En savoir plus
BAW (Bulk Acoustic Wave) resonators are rapidly growing highly integrated devices with wide range of applications in wireless domains. Fabrication of thin film BAW resonators are highly challenging over material selections and measures of materials. RF properties of BAW resonators ... En savoir plus
Acceleration is an important quantity to be measured in high-speed dynamics. A new piezoresistive sensor for the measurement of high-amplitude, short-duration transient accelerations of up to 100,000 g has been developed at the Fraunhofer EMI. Its figure of merit (sensitivity x resonance ... En savoir plus
We report on the modeling of flexible piezoelectric capacitive sensor based on GaN wires grown by Metal Organic Vapor Phase Epitaxy. Single crystal cone-shaped wires with hexagonal cross section are embedded within dielectric layers (parylene) in between two metal electrodes to achieve a ... En savoir plus
The objective of this paper is to show the simulation of a piezoelectric thin film device and its application as a sensor. Piezoelectric aluminum nitride thin film clamped at two ends is simulated using COMSOL Multiphysics software. The device consists of the piezoelectric thin film ... En savoir plus
Technologies based on micro electro mechanical systems (MEMS) present advantages for rheological applications as they enable the fabrication of smaller sensors with faster response times. In this work we propose fabrication parameters and simulation of a MEMS viscometer. This research ... En savoir plus
A comparative study is done using optimized single axis accelerometer and dual axis and double gimbal accelerometers are designed with different cantilever beam types i.e. perforated, non perforated, spring type and cross spring type. The models are simulated to find the most sensitive ... En savoir plus
Self-heating is a problem to consider for Ultrasound Imaging probes. Since the probe is in contact with the skin, it’s necessary to find a solution to lower the front face temperature in order to avoid patient discomfort, even at the most demanding operating condition. One solution ... En savoir plus
The paper presents a method of extraction of coupling of modes (COM) parameters for a one port surface acoustic wave (SAW) resonator from the results of finite element analysis in COMSOL Multiphysics®. The COM parameters calculated are electromechanical coupling coefficient, reflection ... En savoir plus
In this study, COMSOL Multiphysics® software was used to simulate the surface response to excitation method (SuRE). An aluminum beam with a piezoelectric element bonded is modeled using the COMSOL Acoustics Module. A frequency domain sweep study was performed to simulate the sweep sign ... En savoir plus