A. R. Kalaiarasi, and S. H. Thilagar
Electrothermal actuators are capable of providing larger displacements compared to electrostatic actuators. Four designs for ETC actuators with the same material properties and same dimensions are studied.
A. Arevalo, I. G. Foulds
Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
School of Engineering, Okanagan Campus, The University of British Columbia, Vancouver, BC, Canada
Joule heating is simulated in COMSOL Multiphysics® software for the electro-thermal micro actuator. The aim is to choose the optimal design parameters to get the largest possible in-plane displacement. The comparison between the different possible configurations will reveal the optimal parameters for the longest displacement. Our current micro fabrication process allows the actuator to use ...
V. Vadde, and B. Lakshmi G
In this paper, we develop and analyze a standard piezoacoustic Tonpilz-transducer model for underwater acoustics in Comsol by addressing the attendant piezoelectric and pressure acoustic multiphysics phenomena. Transducer properties that are studied and characterized are the center frequency, bandwidth, linearity, sensitivity, and noise figure. In an effort to miniaturize the transducer, a ...
C. Zheng , X. Xiong , J. Hu 
 Department of Electrical and Computer Engineering, University of Bridgeport, Bridgeport, CT, USA
 Department of Mechanical Engineering, University of Bridgeport, Bridgeport, CT, USA
Introduction: Inertial navigation requires acceleration measurement along all three degree-of-freedoms. Most accelerometers are designed to measure acceleration along a single sensitive direction. For complete inertial sensing, a move effective accelerometer which can sense acceleration along multiple axes is needed. In this research, a dual-axis MEMS (Microelectromechanical Systems) ...
A. El Kacimi , E. Pauliac-Vaujour , J. Eymery 
 University Grenoble Alpes, CEA, LETI, MINATEC Campus, Grenoble, France
 University Grenoble Alpes, CEA, Grenoble, France
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 capacitive structure. The device characteristics directly depend on growth conditions for example by tuning ...
D. Chauhan, B. D. Pant
Kurukshetra University, Kurukshetra, Haryana, India
CSIR- Central Electronics Engineering Research Institute, Pilani, Rajasthan, India
Load cells are force sensors, which are used in weighing equipment. The objective of this work is to develop MEMS based load cell. In this work two different load cell designs were simulated. First design is based on compressing a meander like polysilicon strain gage for the measurement of high forces up to 10kN. Second design is based on MEMS pressure sensor consisting of membrane, on which ...
S. Dixit, R. C. Jain
Jaypee Institute of Information Technology, Noida, Uttar Pradesh, India
Surface Acoustic Waves (SAW) is the acoustic wave that propagates along the surface of the substrate with amplitude decaying exponentially away from the surface. A basic SAW device consists of two IDT’s on a piezoelectric substrate such as quartz. Surface Acoustic Wave can be generated by application of a voltage to an IDT deposited on the surface of a piezoelectric substrate. The ...
A. Arevalo , D. Conchouso , D. Castro , I. G. Foulds ,
 Computer, Electrical, & Mathematical Sciences & Engineering, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
 The University of British Columbia, School of Engineering, Vancouver, BC, Canada
The growth of the electronics industry demand better components for the electronic systems. Such components need to be improve to keep up with the evolution of the digital era. The loudspeaker design has not been changed for almost a century [1-5]. The acoustic transducer is the last analogue component needed for a true digital audio system. We want to validate the feasibility of using an ...
R. Xu , M. Guizzetti , K. Astafiev , E. Ringgaard , T. Zawada ,
 Meggitt A/S, Kvistgaard, Denmark
FEM (Finite Element Method) modelling software such as COMSOL Multiphysics® can be a powerful tool for modelling the behavior and response of piezoelectric materials and devices . Devices based on piezoelectric crystals are particularly well suited, because the polarization magnitude in crystals is predetermined and its orientation is defined by how it was cut with respect to the lattice ...
H. du Plessis, W. Perold
University of Stellenbosch, Stellenbosch, South Africa
Surface acoustic wave (SAW) devices are widely used for their sensing capabilities and gas sensing is only one of many uses. There is an ever increasing need to make them as effective as possible by adding nanomaterials to the device. In this study a two-port delay-line structure with 128YX lithium niobate was simulated with COMSOL Multiphysics® in the form of a 2D cross-section. ZnO nanopillars ...