Power-Efficient Oscillator-Based Readout Circuit for Multichannel Resonant Volatile Sensors
| Autor: | Devrez Mehmet Karabacak, C. Van Hoof, Violeta Petrescu, Julia Pettine, Mercedes Crego-Calama, M. Vandecasteele |
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| Rok vydání: | 2012 |
| Předmět: |
Volatile Organic Compounds
Materials science Ethanol Electronic nose Biomedical Engineering Power efficient Equipment Design Form factor (design) Resonator Electric Power Supplies Breath Tests CMOS Limit of Detection Oscillometry Electric Impedance Electronic engineering Application specific Humans Electrical and Electronic Engineering Electronic Nose Sensitivity (electronics) Biomarkers Communication channel |
| Zdroj: | IEEE Transactions on Biomedical Circuits and Systems. 6:542-551 |
| ISSN: | 1940-9990 1932-4545 |
| Popis: | This work presents a multichannel electronic nose system that enables a range of novel applications owing to high sensitivity, low form factor and low power consumption. Each channel is based on a combination of doubly-clamped piezoelectric MEMS resonators and CMOS oscillator-based readout designed in TSMC 0.25 μm technology. Using "application specific" polymer coatings, the individual resonators can be tuned to detect mixtures of volatile organic compounds (VOCs). This system achieves ppm-level theoretical limit of detection for ethanol which paves the way towards a broad range of applications such as personalized health and environment air quality. |
| Databáze: | OpenAIRE |
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