林震煌Lin, Cheng-Huang吳羅賢Wu, Lou-Xian2019-09-04不公開2019-09-042019http://etds.lib.ntnu.edu.tw/cgi-bin/gs32/gsweb.cgi?o=dstdcdr&s=id=%22G060642012S%22.&%22.id.&http://rportal.lib.ntnu.edu.tw:80/handle/20.500.12235/100239本研究成功的開發以LabVIEW程式控制的攜帶型氣體感測裝置，並且利用自行所開發的氣體感測裝置進行應用探討。首先是二氧化碳/氧氣感測裝置：在植物光合作用與呼吸作用的探討中，藉由控制光源開關來控制植物的光合作用，由實驗數據可以觀察到隨著光源的開關，二氧化碳的濃度也會隨著呼吸作用上升、光合作用下降，後續可以使用不同溫度條件或更換不同色光的光源，來探討葉子呼吸作用及光合作用的速率差異。在人體呼氣差異的探討中，由實驗結果可以發現在經過40秒的憋氣後，氧氣的消耗量與二氧化碳的生成量皆有明顯增加，後續可以將此裝置應用於其他呼吸作用相關的研究上，此外，為了促進國際學術交流，研究室送出三組二氧化碳/氧氣感測裝置與德拉薩大學進行精緻農業相關的跨國合作研究。 接著是揮發性有機氣體感測裝置的應用，利用此氣體感測裝置來進行酒測的可行性探討，使用編寫的LabVIEW程式進行進樣控制，此裝置的酒測濃度範圍在24 ~ 360 μg/L之間，其酒測範圍可以因應現行酒測標準，說明自組裝揮發性有機氣體感測裝置具有與酒測儀相似的效能。   最後是氣相層析/微哨感測裝置的應用，在人體呼氣中二氧化碳濃度與血糖值之相關性探討中，從兩位受試者的測試結果可發現呼氣中二氧化碳濃度與血糖值具有相關性，此結果對於開發非侵入式血糖檢測方法是具有一定潛力。在產氫過程的化學動力學探討中，氣相層析/微哨感測裝置可以進行即時偵測並得知產氫速率，後續可以改變pH值來探討產氫速率差異，並從中找出最佳化的研究參數。In this study, LabVIEW program was used to control gas sensing devices and operated those devices for gas monitoring. In the first case, CO2/O2 sensing devices were used to monitor the process of plant photosynthesis and respiration. There had a light source switch to control plant photosynthesis. The concentration of CO2 would increase when leaves breathed and the concentration would decrease when leaves were undergoing photosynthesis. For more discussion, different temperature conditions or different color light sources were used to explore the difference of leaf respiration and photosynthesis. CO2/O2 sensing devices were used to measure human exhaled breath after breath-holding 40s. The experimental results showed that human body consumed more O2 and produced more CO2 after breath-holding 40s. And this CO2/O2 sensing devices had potential for continuous monitoring of human exhaled breath. In addition, there had three sets of CO2/O2 sensing devices to conduct cross-country research with De La Salle University for quality agriculture. The second issue was the application of a VOCs gas sensing device. The gas sensing device was used to alcohol measurement. The programmed LabVIEW software was used to control this gas sensing device. The linear ranges of alcohol calibration line were from 24 to 360 μg/L. It was used for the current alcohol testing and had similar performance as commercial breathalyzer.   Finally, gas chromatography/milli-whistle sensing device was used to investigate the relationship between CO2 concentration in human exhaled breath and blood glucose. The experimental results showed that CO2 concentration in human exhaled breath and blood glucose had the same trend from the test results of two subjects. So, this result had potential for developing non-invasive blood glucose testing methods. In the chemical kinetics of the hydrogen production process, the gas chromatography/milli-whistle sensing device could perform real-time detection and know the hydrogen production rate. Furthermore, the best parameters for hydrogen production would be found by different pH conditions.LabVIEW攜帶型氣體感測裝置LabVIEWPortable gas sensing devices