【摘要】 本文研究ＳｎＯ２：ＴｉＯ２混合物薄膜在丙酮蒸气中的气敏光谱，并给予理论解释。利用在低浓度时，透射峰随气体浓度增加而蓝移，可制成对低浓度丙酮气体敏感的光纤传感器。更多还原

【Abstract】 In this paper we introduce the gas-sensing spectrum character of SnO2: TiO2 compound film in acetone vapour and its theoretical explanation. The wave crest of transmission can move to shorter wavelength when the concentration of acetone vapour increases. Making use of this phenomenon, we can manufacture gas-sensing optical fiber sensor to detect acetone vapour of low concentration.更多还原