完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.author | Kuo, Fung-Yu | en_US |
dc.contributor.author | Lin, Ying-Chen | en_US |
dc.contributor.author | Ke, Ling-Yi | en_US |
dc.contributor.author | Tsai, Chuen-Jinn | en_US |
dc.contributor.author | Yao, Da-Jeng | en_US |
dc.date.accessioned | 2019-04-02T05:58:34Z | - |
dc.date.available | 2019-04-02T05:58:34Z | - |
dc.date.issued | 2018-08-01 | en_US |
dc.identifier.issn | 2072-666X | en_US |
dc.identifier.uri | http://dx.doi.org/10.3390/mi9080398 | en_US |
dc.identifier.uri | http://hdl.handle.net/11536/148075 | - |
dc.description.abstract | A device to monitor particulate matter of size 2.5 m (PM2.5) that has been designed and developed includes a surface-acoustic-wave sensor operating in a shear horizontal mode (SH-SAW) combined with a cyclone separator. In our tests, aerosols generated as incense smoke were first separated and sampled inside a designed cyclone separator; the sampled PM2.5 was then introduced into the sensing area of an SH-SAW sensor for detection. The use of microcentrifuge tubes as a cyclone separator effectively decreases the size and power consumption of the device; the SAW sensor in a well design and operating at 122 MHz was fabricated with MEMS techniques. After an explanation of the design of the cyclone separator, a simulation of the efficiency and the SAW sensor detection are discussed. A microcentrifuge tube (volume 0.2 mL, inlet and outlet diameters 0.5 mm) as a separator has separation cutoff diameters 50% (d(50)) at 2.5 m; the required rate of volumetric flow at the inlet is 0.125 LPM, according to simulation with computational fluid dynamics (CFD) software; the surface-acoustic-wave (SAW) sensor exhibits sensitivity approximately 9 Hz/ng; an experiment for PM2.5 detection conducted with the combined device shows a strong positive linear correlation with a commercial aerosol monitor. The limit of detection (LOD) is 11 g/m(3) with sample time 160 s and total detection duration about 5 min. | en_US |
dc.language.iso | en_US | en_US |
dc.subject | cyclone separator | en_US |
dc.subject | surface-acoustic-wave sensor | en_US |
dc.subject | environmental sensing | en_US |
dc.subject | PM2 | en_US |
dc.subject | 5 | en_US |
dc.title | Detection of Particulate Matter of Size 2.5 m with a Surface-Acoustic-Wave Sensor Combined with a Cyclone Separator | en_US |
dc.type | Article | en_US |
dc.identifier.doi | 10.3390/mi9080398 | en_US |
dc.identifier.journal | MICROMACHINES | en_US |
dc.citation.volume | 9 | en_US |
dc.contributor.department | 環境工程研究所 | zh_TW |
dc.contributor.department | Institute of Environmental Engineering | en_US |
dc.identifier.wosnumber | WOS:000443256300032 | en_US |
dc.citation.woscount | 0 | en_US |
顯示於類別: | 期刊論文 |