Determination of volatile organic compounds in air by a surface acoustic wave array
| Autor: | Bekir Mumyakmaz, Ahmet Özmen, Deniz Balta, M.A. Ebeoğlu |
|---|---|
| Přispěvatelé: | Sakarya Üniversitesi/Bilgisayar Ve Bilişim Bilimleri Fakültesi/Yazılım Mühendisliği Bölümü, Özmen, Ahmet, Balta, Deniz, Ozmen, A, Ebeoglu, MA, Mumyakmaz, B, Balta, D |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Analyte
Bar (music) SAW General Chemical Engineering Acoustics 02 engineering and technology 01 natural sciences Signal Electronic nose surface acoustic wave Electronic engineering gas classification system Instrumentation Instruments & Instrumentation General Environmental Science Chemistry 010401 analytical chemistry Surface acoustic wave 021001 nanoscience & nanotechnology 0104 chemical sciences Noise Transducer gas sensor array Surface acoustic wave sensor 0210 nano-technology |
| Popis: | WOS: 000364324100006 This article reports the design and performance of a portable volatile organic compound detection system implemented with a surface acoustic wave array. The system employed electrospray technology for the determination of acetone and methanol. The novel part of this study was the design of the 433MHz surface acoustic wave array. The sensor oscillators were operated at higher frequencies to reduce space and power consumption. The higher frequency also improved the response resolution; however, it created problems including interferences, crosstalk, signal degradation, and noise. Crosstalk was the most important problem and was minimized by the operation of one sensor at a time while the others were muted. Analog and digital circuitry served as the transducer to obtain analyte signals that were processed to produce bar and principal component analysis plots. The system was extensively tested and good results were obtained for qualitative and quantitative measurements. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|