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Particle sensor using solidly mounted resonators
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Thomas, Sanju, Villa-López, Farah Helue, Theunis, Jan, Peters, Jan, Cole, Marina and Gardner, J. W. (2016) Particle sensor using solidly mounted resonators. IEEE Sensors Journal, 16 (8). pp. 2282-2289. doi:10.1109/JSEN.2015.2512303
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WRAP_9671463-es-070416-ieee_author-submitted_peer-reviewed_and_accepted_manuscript_jsen2512303.pdf - Accepted Version - Requires a PDF viewer. Download (1372Kb) | Preview |
Official URL: http://dx.doi.org/10.1109/JSEN.2015.2512303
Abstract
This paper describes the development of a novel particle sensing system employing zinc oxide based solidly mounted resonator (SMR) devices for the detection of airborne fine particles (i.e., PM2.5 and PM10). The system operates in a dual configuration in which two SMR devices are driven by Colpitts-type oscillators in a differential mode. Particles are detected by the frequency shift caused by the mass of particles present on one resonator with while the other acts as a reference channel. Experimental validation of the system was performed inside an environmental chamber using a dust generator with the particles of known size and concentration. A sensor sensitivity of 4.6 Hz per μg/m3 was demonstrated for the SMRs resonating at a frequency of 970 MHz. Our results demonstrate that the SMR-based system has the potential to be implemented in CMOS technology as a low-cost, miniature smart particle detector for the real-time monitoring of airborne particles.
| Item Type: | Journal Article | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering | ||||||||
| Divisions: | Faculty of Science > Engineering | ||||||||
| Library of Congress Subject Headings (LCSH): | Air -- Pollution -- Measurement, Resonators | ||||||||
| Journal or Publication Title: | IEEE Sensors Journal | ||||||||
| Publisher: | Institute of Electrical and Electronic Engineers | ||||||||
| ISSN: | 1530-437X | ||||||||
| Official Date: | 15 April 2016 | ||||||||
| Dates: |
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| Volume: | 16 | ||||||||
| Number: | 8 | ||||||||
| Number of Pages: | 8 | ||||||||
| Page Range: | pp. 2282-2289 | ||||||||
| DOI: | 10.1109/JSEN.2015.2512303 | ||||||||
| Status: | Peer Reviewed | ||||||||
| Publication Status: | Published | ||||||||
| Access rights to Published version: | Restricted or Subscription Access | ||||||||
| Funder: | Consejo Nacional de Ciencia y Técnica (Argentina) (CONACYT) | ||||||||
| Adapted As: |
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