提高乙醇气体传感器性能的方法

提高乙醇气体传感器性能的途径有改变材料、结构以及工作原理。其中改变材料包括 :(1)添加催化剂 ,提高材料的活性 ;(2 )选择敏感特性更好的材料 ;(3)在表面涂敷一层特定材料 ,减小其它气体的干扰。改变结构包括 :(1)改变材料的微观结构———超微粒化 ;(2 )改变材料的宏观结构 :烧结型→厚膜型→薄膜型 ;(3)改变敏感元件的结构 :由一个敏感电阻器变为两个敏感电阻器

Means of improving performance for ethanol gas sensor

Three ways of improving ethanol gas sensor's performance were introduced:changing material, structure and work principle.Changing material includes:(1)adding catalysts to improve material's activity, (2) choosing better sensing material,(3)coating a special material on the surface to induce the interference of other gases.Changing structure includes:(1)changing material microstructure i.e. super particle, (2) changing material macro structure:sinter→thick film→thin film,(3)changing sensitive element's structure:from one sensitive resistance to two sensitive resistances.