多孔氧化铝基微量水分传感器在干燥气体中的交叉灵敏度研究

2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI:10.1109/ICSENST.2008.4757187

S. Dhanekar, Prince M Z Hasan, S. Hussain, T. Islam, S. S. Islam, K. Sengupta, D. Saha

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引用次数: 2

摘要

目前的工作是利用低成本溶胶-凝胶技术制备50 ~ 500 ppm(V)范围内的电容性多孔氧化铝微量水分传感器。由于其商业用途，交叉灵敏度由于有机蒸气如乙醇，甲醇，丙酮和苯的存在进行了研究。对环境温度的影响也进行了研究。实验结果表明，湿度传感器对极性有机蒸汽有响应，而对苯等非极性分子的响应几乎可以忽略不计。然而，与水分敏感性相比，传感器对有机蒸汽的响应非常小。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Study of cross- sensitivity of porous alumina based trace moisture sensor in dry gases

Present work deals with the development of capacitive porous alumina based trace moisture sensor in the range of 50 to 500 ppm(V) fabricated by low cost sol-gel technique. For its commercial usefulness, the cross-sensitivities due to the presence of organic vapours like ethanol, methanol, acetone and benzene are studied. The effects of ambient temperature have also been studied. Experimental results show that moisture sensor is responsive to the polar organic vapours but has almost negligible response to the nonpolar molecules like benzene. However compared to the moisture sensitivity, the sensor response to the organic vapours is very small.

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2008 3rd International Conference on Sensing Technology

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