L.B.M. Silva, E.J.P. Santos
Laboratory for Devices and Nanostructures, Electronics and Systems Department, Universidade Federal de Pernambuco, Recife, PE, Brasil
Transducer optimization is a key aspect for successful development and deployment of advanced sensors, especially when designing 3D structures for harsh environments. For piezoelectric transducers, plate thickness determines the operating frequency of the resonator, which is frequently tuned in the shear thickness vibration mode. Quartz has been the material of choice for the fabrication of ...
K. Karthikeyan , L. Sujatha
Rajalakshmi Engineering College, Chennai, Tamil Nadu, India
This paper presents the design and simulation of micromixer for Lab-On-Chip (LOC) applications. There are two types of micromixers: one is an active micromixer and another one is a passive micromixer. This paper investigates microfluidic flow characterization and mixing rate of two fluids in a micro- channel. Understanding the microfluidic flow at the micro channel is a develop methods of mixing ...
Design for Reliability and Robustness through Probabilistic Methods in COMSOL Multiphysics with OptiY
T.-Q. Pham, H. Neubert, and A. Kamusella
OptiY e.K., Aschaffenburg, Germany
Institute of Electro-Mechanical and Electronic Design, TU Dresden, Germany
One challenge in designing micro-electromechanical systems (MEMS) is considering the variability of design parameters caused by manufacturing tolerances and material properties. The function of MEMSs is significantly influenced by this variability, which can be represented in terms of statistical variables. In order to involve statistical design parameters into the design optimization process, ...
Variable Capacitance And Pull-In Voltage Analysis Of Electrically Actuated Meander-Suspended Superconducting MEMS
N. AlCheikh, P. Xavier, J.M. Duchamp, C.H. Boucher, and K. Schuster
Institute of Microelectronics, Electromagnetism and Photonics (IMEP-LAHC), Minatec, Grenoble, France
Institute of Millimetric Radio Astronomy (IRAM), Grenoble, France
Variable capacitors between the fF and pF range are very interesting for high frequency applications like variable filters, resonators, etc. For radio astronomy applications variable capacitors, realized by electrostatically actuated, micromechanical Meanders-suspended bridges (MEMS) made of superconducting Niobium, have been measured to find C(V). A non plane capacitance behavior have been ...
M. Silambarasan, T. Prem Kumar, M. Alagappan, and G. Anju
PSG College of Technology
Tamil Nadu, India
The present work aims to develop a blood pressure sensor using MEMS/NEMS technology. A normal blood pressure detector is used externally, but this work mainly aims for designing an implantable nanotube based sensor for continuous monitoring of blood pressure. The use of COMSOL Multiphysics 4.1 acts as a good platform to develop a nano tube based sensor design by using the MEMS module. The ...
Reliability Enhancement of Bio MEMS based Cantilever Array Sensors for Antigen Detection System using Heterogeneous Modular Redundancy
L. S. Sundharam
Kumaraguru college of Technology, Coimbatore, Tamil nadu, India
The objective of the work is to propose a reliability enhancement model for antigen detection system (ADS) using bio MEMS based cantilever array sensors using heterogeneous modular redundancy technique. The reliability of the ADS is expressed in terms of the constituent sub systems which are heterogeneous not only in their respective structures and behaviors but also in their forms. The possible ...
Multiphysics and Simulation of MEMS based Bolometer for Detecting the Radiations in Nuclear Power Plants
K. Umapathi, S. Swetha, K. Ranjitha, K. Vinodh, K. Deebiga, R. Harisudarsan
United Institute of Technology, Coimbatore, TamilNadu, India
Sri Krishna College of Engineering and Technology, Coimbatore, Tamil Nadu, India
High performance micro sensors are important to detecting special nuclear materials radiations in different fields to save the globe. This paper is mainly focused on to develop a MEMS based bolometer for detecting the nuclear radiation to provide the high security in Nuclear power Plants. A thermally sensitive micro metal plate is designed and placed on a substrate through micro thermal link. ...
K. Misiunas, N. Laohakunakorn, S. Ghosal, O. Otto, U. F. Keyser
University of Cambridge, Cambridge, UK
Northwestern University, Evanston, IL, USA
The motion of DNA in crowded environments is a common theme in physics and biology. Examples include gel electrophoresis and the self-interaction of DNA within cells and viral capsids. Here we study the interaction of multiple DNA molecules within a nanopore by tethering the DNA to a bead held in a laser optical trap to produce a "molecular tug-of-war". We measure this tether force as a function ...
O. Myers , M. Anjanappa , and C. Freidhoff 
 Mississippi State University, Mississippi State, MS, USA
 University of Maryland Baltimore County, Baltimore, MD, USA
 Northrop Grumman Corporation, Electronics Systems Sector, Baltimore, MD, USA
This paper presents a methodology towards designing, analyzing and optimizing piezoelectric interdigitated microactuators using COMSOL Multiphysics. The models used in this study were based on a circularly interdigitated design that takes advantage of primarily the d33 electromechanical piezoelectric constant coefficient. Because of the symmetric nature of the devices, 2D axisymmetric models ...
B.P. Cahill, M. Quade, G. Gastrock, K. Lemke, J. Metze, and D. Beckmann
Institut für Bioprozess und Analysenmesstechnik e.V., Rosenhof, Heilbad Heiligenstadt, Germany
This paper presents a simulation of the operation of a new type of droplet generation probe. This probe, consisting of two concentrically-arranged tubings, is immersed in a beaker of cell medium so that oil is pumped through the outer tubing at a pumping speed less than fluid is drawn into the inner tubing. In this way, droplets of cell medium are entrained into the outlet tubing forming a ...