Simple Modeling of the Thermal Behavior of a Tiny Liquid Splat on a Thermal Microsensor

In this paper, a thermal method to analyze the features of tiny drops is investigated. The explanation is based on the fundamental laws of heat transfer and phase transition. This simple approach is to divide the thermal behavior of a droplet upon settling on the surface of a thermopile sensor into...

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Bibliographic Details
Published in:Journal of microelectromechanical systems 2007-04, Vol.16 (2), p.473-479
Main Authors: Jun Ni, Maiwald, M., Buchner, R., Sosna, C., Benecke, W., Lang, W.
Format: Article
Language:English
Subjects:
Biomembranes
Droplets
Exact sciences and technology
Geometry
Heating
Immune system
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Liquids
Mathematical models
Mechanical instruments, equipment and techniques
Microelectromechanical systems
Micromechanical devices and systems
Microsensors
modeling
Optimization
Physics
Sensors
Settling
Solids
Temperature sensors
Thermal conductivity
Thermal resistance
Thermal sensors
thermoelectricity
Thermopiles
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Summary:In this paper, a thermal method to analyze the features of tiny drops is investigated. The explanation is based on the fundamental laws of heat transfer and phase transition. This simple approach is to divide the thermal behavior of a droplet upon settling on the surface of a thermopile sensor into two successive phases, so that the process could be modeled by means of a set of partial differential equations with one space variable. The theoretical predictions for two different liquids are confirmed with the experimental data. The good agreement between them paves the way for optimizing the geometry of the sensor and enhances its potential in practical applications
ISSN:1057-7157
1941-0158
DOI:10.1109/JMEMS.2007.892896