期刊名称：International Journal of Network Security & Its Applications
印刷版ISSN：0975-2307
电子版ISSN：0974-9330
出版年度：2013
卷号：5
期号：2
DOI：10.5121/ijnsa.2013.5210
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：Ourworldis facing some drastic changes in the climatic conditions due to the heating effect caused byvarious greenhouse gases. The most harmful gas among them is Carbon dioxide and is increasing at anuncontrolled rate.This paper aims in finding out the quantity of the major polluting gas carbon dioxide. The gravimetricsensor works by adsorbing the CO2 molecules on ZnO sensing layer, which alters the overall mass of thesensor. The mechanical structure is a cantilever, having its own resonant frequency. To selectively adsorbCO2 molecules from the mixture of gaseous molecules, ZnO at a specific temperature is used. As the gasmolecules are adsorbed the mass increases and hence there is a change in resonant frequency. This changein frequency gives the measure of the quantity of CO2 molecules present in that environment. The majorexpected advantage of this technique would be the repeatability of the sensor that is used. This Quantitativeanalysis of CO2 would behelpful for mankind by alerting them about the environment in which they work,by proper conditioning and networking
关键词：Micro Cantilever; Resonant F requency; Sensing Layer
