G. Gomila , L. Fumagalli , R. Fabregas ,
 Institut de Bioenginyeria de Catalunya (IBEC), Departament d’Electrònica, Universitat de Barcelona, Barcelona, Spain
 School of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
 Institut de Bioenginyeria de Catalunya (IBEC), Universitat de Barcelona, Barcelona, Spain
Electrical scanning probe microscopy (SPM) techniques, such as electrostatic force microscopy, nanoscale impedance microscopy or scanning near field microwave microscopy, are a relatively new branch of microscopy techniques that can generate images of the nanoscale electrical properties of samples (conductivity, permittivity, charge, etc.). These techniques scan the surface of a sample ...
A. K. Namdeo , H. B. Nemade ,
 Department of Electronics and Electrical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
The paper presents a method of extraction of electrical equivalent circuit of a one port surface acoustic wave (SAW) resonator from the results of simulation based on finite element method (FEM) using COMSOL Multiphysics software. A one port SAW resonator consists of large number of periodic interdigital transducer (IDT) electrodes fabricated on the surface of a piezoelectric substrate. A ...
U. Vogel , M. Spindler , S. Wege , T. Gemming 
 Leibniz Institute for Solid State and Materials, Dresden, Germany
In this work, we seek to simulate SAWs for a better understanding and to benchmark the currently available cloud computing possibilities of COMSOL Multiphysics® software. By using the MEMS module we demonstrate 3D models with reduced geometry to achieve principle information about the wavefield. For a benchmark, a high-speed workstation with limited memory (RAM) is compared to the most potent ...
A. Pasumarthy , H. Sinha , A. Islam ,
 Birla Institute of Technology, Mesra, Ranchi, Jharkhand, India
Gecko foots have inspired researchers to develop designs that can help robots to tread vertically oriented surface. These nanobots find many applications as they can perform a lot of operations more efficiently and also lower the cost of such operations. These can be employed in various fields: medical, industrial etc. Gecko lizards use dry adhesion van der Waals forces to climb walls produced ...
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 ...
M. C. B. Kumar, D. B. Prabhu, R. Akila, A. Gupta, M. Alagappan
PSG College of Technology, Coimbatore, Tamil nadu, India
This paper discusses the simulation studies on a vibration based energy harvesting system to convert the undesirable mechanical vibration to useful green power. The design consists of a resonating proof mass and a spring system enclosed in housing and fixed on the source of vibration. A piezoelectric suspension acts as the transducer and generates a voltage that is used to charge the batteries ...
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 ...
Y. Jin , S. Kumar , R. A. Gerhardt ,
 School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, GA, USA
1. Introduction The electrical properties of materials are important in many different applications. In microelectronics for example, films must perform as insulators, semiconductor or as conducting layers. In recent years, scanning probe methods are being extended to the nanometre scale range since accurate high spatial resolution measurements of electrical properties are of great interest ...
L. Nayana, P. Manohar, S. Babu
Department of Electrical Engineering, Visvesvaraya Technological University, Bangalore, Karnataka, India
In this paper some discrete parts of a valveless piezoelectric micropump for drug delivery system is designed and simulated. The core components of the micropump are actuator unit that converts the reciprocating movement of a diaphragm actuated by a piezoelectric actuator into a pumping effect and Nozzle/diffuser elements that are used to direct the flow from inlet to outlet. Simulations are ...
R. Karthick, S. P. K. Babu, A. R. Abirami, and S. Kalainila
Periyar Maniammai University
This paper presents the design and simulation of high sensitivity and fast response capacitive humidity sensor. Generally, the capacitive humidity sensor is made up of parallel electrode, the upper electrode being a grid with various line width and line spacing. A model is simulated using COMSOL Multiphysics. High sensitivity and fast response of the model is optimized by varying the ...