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研究了以粉末冶金技术制备的四方晶型ＢａＴｉＯ３粉为主体原料，机械均匀掺杂一定摩尔配比的高纯ＣｕＯ粉体，获得电容型气敏元件的可能性．实验考察了元件温度、频率、浓度特性．结果表明所制元件对ＣＯ２气体呈现一定的敏感特性，该元件可测ＣＯ２气体浓度（体积分数）范围广（０～９５％），在低浓度０～５％范围内，元件灵敏度与ＣＯ２气体浓度呈线性关系，利于直接标定，是一种很有发展前途的新型气敏元件．
The possibility of obtaining capacitive gas sensors by investigating the tetragonal BaTiO3 powder prepared by powder metallurgy technology as the main raw material and uniformly mixing high purity CuO powder with a certain molar ratio was studied. Experimental study of the components temperature, frequency, concentration characteristics. The results show that the prepared elements exhibit certain sensitivity to CO2 gas. The device can measure CO2 gas concentration (volume fraction) in a wide range (0-95%). In the low concentration range of 0-5%, the element sensitivity and CO2 gas concentration A linear relationship, conducive to direct calibration, is a promising new gas sensor.