A. Mulye, S. Potnis
Northeastern University, Boston, MA, USA
VIT, Mumbai, Maharashtra, India
We present an optimized and efficient design of an electrohydrodynamic (EHD) micropump for high performance in microscale and biological applications. We are targeting two major applications, a parylene C design for electrically-actuated medicine delivery, and a silicon-based pump design for on-chip cooling of microprocessors and SOCs. The EHD micropump works on the movement of microscale ...
J. Golebiowski, S. Milcarz
Technical University of Lodz, Poland
The use of optical sensors in the industry is still growing. A transmission of signal from the sensors is mostly done by optical fibers. Switching the signals from optical paths may be done by using micromechanical silicon switches. The main advantage is an ability to transmit data from many sensors using different wavelengths, simultaneously minimizing optical power losses. A silicon beam with ...
H. Cabrera, D.A. Zanin, L.G. De Pietro, A. Vindigni, U. Ramsperger, D. Pescia
Laboratory for Solid State Physics, ETH Zurich, Zurich, Switzerland
A sharp tip approached perpendicular to a conducting surface at subnanometer distances and biased with a small voltage builds a junction across which electrons can be transferred from the tip apex to the nearest surface atom by direct quantum mechanical tunneling. Such a junction is used e.g. in Scanning Tunneling Microscopy (STM). When the distance d between tip and collector is increased ...
Anna Thomas, Juny Thomas, Deepika Vijayan, K.Govardhan
VIT University, Sensor System Technology, School of Electronics Engineering, Vellore, Tamil Nadu, India
VIT University, MEMS & Sensor Division, School of Electronics Engineering, Vellore, Tamil Nadu, India
The microscopic size of MEMS devices accounts for strong coupling effects which arise between the different physical fields and forces. Micromirrors are essential parts of microswitches in fiber optic network telecommunication. They are usually 1 to 3 mm in size, fabricated from single crystalline silicon and mostly are electrostatically actuated. The objective is to design the micromirror to ...
Electro-Thermal Modeling of High Power Light Emitting Diodes Based on Experimental Device Characterization
T. Lopez, and T. Margalith
Philips Research, Aachen, Germany
Philips Lumileds Lighting Company, San Jose, CA, USA
This paper presents a 3D finite element model in COMSOL for the electro-thermal analysis of high power light emitting diodes (LEDs). The proposed model and implementation approach require basic electrical and optical parameters that may be experimentally derived with the aid of advanced post-processing techniques. Extensive experimental validation reveals the capability of the model to accurately ...
Hoang, V.N., Kaigala, G.V., Backhouse, C.J.
ECERF, University of Alberta, Edmonton, Alberta, Canada
Localized heating is poised to become an integral part of microfluidic devices in various life-science applications. This is catalyzed by the scale of economics, the advantageous fluidic behavior at small volumes, and the ever increasing need for rapid and high throughput assays for pharmaceutical industry and other combinatorialbased studies. For precision confined heating, thin film resistive ...
Aarthi E, Pon Janani S, Vaidevi S, Meenakshi Sundaram N , Chandra Devi K
PSG College of Technology, Coimbatore, Tamil Nadu, India
Blind cave fish are capable of sensing flows and movements of nearby objects even in dark and murky water conditions with the help of arrays of pressure-gradient sensors present on their bodies called lateral-lines. To emulate this functionality of lateral-lines for autonomous underwater vehicles, an array of polymer MEMS pressure sensors have been developed that can transduce underwater pressure ...
Utilization of COMSOL Multiphysics' JAVA API for the Implementation of a Micromagnetic Modeling and Simulation Package with a Customized User Interface
L. Teich, A. Hütten, C. Schröder
Department of Engineering Sciences and Mathematics, Computational Materials Science & Engineering (CMSE), University of Applied Sciences Bielefeld, Bielefeld, Germany
Department of Physics, Thin Films and Nanostructures, Bielefeld University, Bielefeld, Germany
One of the big advantages of COMSOL Multiphysics is the possibility to implement user-defined partial differential equations (PDE) which can be coupled to COMSOL\'s predefined physics interfaces. However, using the tool’s standard user interface requires manual implementation of the PDEs and a multitude of problem-specific parameters. This process is not just error-prone but also very time ...
B. L. Crossley, M. Kossler, P.J. Collins, R. A. Coutu Jr., and L. A. Starman
Air Force Institute of Technology, Wright-Patterson AFB, Ohio, USA
Carbon nanotubes (CNTs) have been proven experimentally to be well suited for field emission applications. An optimized triode configured CNT field emission array is developed using the COMSOL Multiphysics Electrostatics Application to adjust five key physical dimensions to investigate the effects on the enhanced electric field at the CNT emitter tips. The five dimensions studied are CNT spacing, ...
G. Vijila, S. Vijayakumar, M. Alagappan, and A. Gupta
PSG College of Technology
Tamil Nadu, India
This paper projects a novel 3D capacitive accelerometer design to identify a severe accident and initiate airbag deployment systems. It will detect the rapid negative acceleration of the vehicle to avoid the severity of the collision. Such a device demands excellent performance in terms of sensitivity, noise immunity, linearity, bias and scale factor stability over time and environmental changes. ...