Study of bad-smell sensing network

由于近来对难闻气味的投诉的数量增加，因此需要难闻气味感测系统，从而可以立即解决难闻气味的问题。为了寻找恶臭气体的来源，研究了一种简单、廉价的光学方法，重点研究了一种气体检测管，建立了检测管变色层的自动连续读出方法。然后，利用目标分析物与其他分析物之间反应速度的差异，消除目标分析物与其他分析物之间干扰的影响。此外，探测器管的灵敏度的提高是利用积累效应。灵敏度比传统的气体检测管提高了一个数量级。最后，研制了基于一维CCD传感器和气体检测管的便携式传感系统。臭味的分布很容易测量 关于我们 利用该装置，利用气体长时探测管阵列和数码相机对恶臭气体的分布进行了测量。可以测量浓度分布的动态变化以及静态变化。通过测量点间的插值，制作了分布动态变化的动画。除数码相机外，其他传感器均不需要接口电路和电源。使用光学扫描仪或LED等简单的测量系统，可以检测和鉴定三乙胺、乙酸、丙醛和丙醇。由于传感器阵列的输出模式保持不变，即使其浓度发生变化，也可以识别出难闻的气味。最后，我们得出结论：本研究建立了基于气体检测管和染料板的恶臭气体传感的基本方法。少

A bad-smell sensing system is required so that the problem of the bad smell can be immediately solved since the number of the complaints against the bad smell has been recently increased. The simple and cheap equipment using an optical method was studied in the present study to search for the source of the bad smell.A gas detector tube was focused on and the automatic and the continuous read-out method of the discoloration layer in the detector tube was established. Then, the influence of the interference between the target analyte and others could be eliminated using the difference of the reaction speed among them. Moreover, the sensitivity enhancement of the detector tube was achieved utilizing the accumulation effect. The sensitivity became one order of magnitude better than that of the conventional gas detector tube. Finally, the portable sensing system using a gas detector tube and one-dimensional CCD sensor was developed. The distribution of the bad smell will be easily measured … More by this equipment.The distribution of the bad smell was measured using the array of the long-term gas detector tubes and the digital camera. It was possible to measure the dynamic change of the concentration distribution as well as the static one. The animation of the dynamic change of the distribution was made using the interpolation among the measurement points. Each sensor does not need to have the interface circuit and the power supply except for the digital camera.Another type of bad-smell sensor such as dye-coated plate was studied. It was possible to detect and identify triethyl amine, acetic acid, propion aldehyde and propanol using the simple measurement system such as an optical scanner or LED. It was possible to identify the bad smell even if its concentration was changed because the sensor-array output pattern was kept the same. A variety of the response patterns were obtained using the dye-coated plate.Finally we conclude that the fundamental method of the bad-smell sensing using a gas detector tube and the dye-coated plate was established in the present study. Less