Abstract
Hot-wire anemometers, being a robust and highly sensitive method for measuring flow properties, can be limited in sensitivity where locally increasing the temperature may induce measurement inaccuracy such as when used in near-boiling fluids. In this environment, locally decreasing the temperature allows for a larger temperature difference between the sensor and the ambient environment, thereby increasing device sensitivity while maintaining single-phase convection heat transfer physics. In this letter, we present the new capability of using thermoelectrically cooled sensors to measure wall shear stress. The power required to maintain a constant sensor temperature was increased as the wall shear stress in the channel was increased, providing proof of concept.
Original language | English (US) |
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Article number | 6814781 |
Pages (from-to) | 783-785 |
Number of pages | 3 |
Journal | IEEE Electron Device Letters |
Volume | 35 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2014 |
Keywords
- Shear stress sensor
- flow sensor
- thermoelectrics
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering