【摘要】 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．更多还原

【Abstract】 おhe possibility of adulterating highpure CuO powders into the tetragonal structure BaTiO3 powders which were prepared by powder metallurgy to obtain gas sensitive element is studied.The characteristics of temperature,frequency and concentration of the element are inspected.The tests indicate that the element is sensitive to CO2. It can detect a wide range of CO2 concentration(0～95%).Below 5% CO2 the sensitivity of the element reflects line relationship to the gas concentration. It is very convenient for the element to be calculated. The new type of gas sensitive element has bright future.更多还原