Papers – Page 1014 – TechConnect Briefs

Micromirror Array Design and Simulation

Huja M., Husak M., Czech Technical University in Prague, CS

The main objective of the research described is to design optimal principle of micromirror array and its manufacturing technology with maximum penentration of the reflected/non-reflected part of micromirror array using standard, easily available and cheap [...]

Modeling and Simulation of a Permanent Magnet Array in Elliptical Configurations

Lee S.J., Jiles D.C., Iowa State University, US

Permanent magnet arrays have advantages for magnetic field generation over the traditional current based magnetic flux sources, such as electromagnets, in that they do not require a power supply and cooling system. Magnetic flux density [...]

Modeling and Design of a Micromechanical Phase-Shifting Gate Optical Modulator

Que L., Witjaksono G., Gianchandani Y.B., University of Wisconsin, US

This paper reports the modeling and design of a micromechanical optical modulator with a phase-shifting gate that utilizes optical interference effects to modulate light. The gate is opened or closed by microactuators integrated on the [...]

Analytic and Raytrace Modeling of a Miniaturized Infrared Spectrometer Module

Keränena K., Blomberg M., Tenhunena J., Kariojac P., VTT Electronics, FI

When designing the construction of an optoelectronic module, the modeling of the system allows for the possibility to optimize geometries, materials and components in order to achieve optimal performance and cost effectiveness for the final [...]

Optical Propagation Methodologies for Optical MEM Systems

Kurzweg T.P., Levitan S.P., Martinez J.A., Marchand P.J., Shomsky M.T., Chiarulli D.M., University of Pittsburgh, US

In this paper, we examine optical propagation techniques for modeling and simulating optical MEM systems. We determine an appropriate technique through studying two criteria: the requirements established by the physical properties of these systems and [...]

Modelling of Integrated Peltier Elements

Wijngaards D.D.L., Cretu E., Kong S.H., Wolffenbuttel R.F., DIMES ITS/Et, NL

On-chip integration of Peltier devices creates a number of additional parasitics, compared to conventional Peltier devices. The most important are thermal conduction through the supporting membrane and contact resistance. Analytical analysis shows that each parasitic [...]

Simulation and Experimental Verification of Micro Polymerase Chain Reaction Chip

Lin Y-C., Yang C-C., Hwang M-Y., Chang Y-T., Cheng Kung University, TW

This study used finite element analysis to simulate the temperature characteristics of a micro polymerase chain reaction (PCR) chip. The micro-PCR chip was fabricated on a silicon wafer and Pyrex glass using photolithography, wet etching, [...]

Simulation of Heat-Transfer Enhancement Effects in Microreactors

Hardt S., Ehrfeld W., Hessel V., Vanden Bussche K.M., Institut für Mikrotechnik Mainz GmbH, DE

Sate-of-the-art microstructuring techniques allow to model the interface for heat and mass transfer in miniaturized reactions systems on a micrometer scale. In this context, two different approaches for heat transfer enhancement are presented. The ideas [...]

Thermal Management of Micro-Hotplates using MEMCAD as Simulation Tool

Briand D., Grétillat M.-A., van der Schoot B., de Rooij N.F., Institute of Microtechnology, CH

In this paper we report on the electrothermal simulations performed in the aim of optimising the power consumption and the temperature distribution of micro-hotplates for gas sensing applications. The micro-hotplate designs were optimised using the [...]

Numerical Simulation of Pulse-Width-Modulated Micropumps with Diffuser/Nozzle Elements

Nguyen N-T., Huang X., Nanyang Technological University, SG

This paper presents the numerical simulation of a new control method for dynamic micropumps with diffuser/nozzle elements: the pulse-width-modulation (PWM) of the drive signal. A piezo disk with a square wave signal actuates the pump, [...]