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Journal article
Ultrahigh-Sensitivity Pressure and Vibration Sensor
IEEE sensors journal, Vol.11(12), pp.3288-3294
12/01/2011
Web of Science ID: WOS:000301878500013
Abstract
A novel new ultrahigh-sensitivity pressure and vibration sensor is introduced. The sensor is based on the concept of using a variable ultracapacitor rather than a variable capacitor as a transduction mechanism. The variable ultracapacitor assembly consists of two electrodes on which carbon nano-tubes of a length of 20 mu m are grown. One electrode is fixed and is fully immersed in the electrolyte, while the other electrode is movable and is positioned outside of the electrolyte. In response to pressure or vibration, an extremely small displacement of 20 mu m (less than the width of a human hair) submerges the movable electrode into the electrolyte and results in a substantially large variation in capacitance (from zero to 54 mu F in the present prototype).
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Details
- Title
- Ultrahigh-Sensitivity Pressure and Vibration Sensor
- Publication Details
- IEEE sensors journal, Vol.11(12), pp.3288-3294
- Resource Type
- Journal article
- Publisher
- IEEE
- Copyright
- © 2011 IEEE
- Identifiers
- WOS:000301878500013; 99380175881306600
- Academic Unit
- Hal Marcus College of Science and Engineering ; Dr. Muhammad Harunur Rashid Department of Electrical and Computer Engineering
- Language
- English