A novel mode-filtered light gas sensor has been reported. It was constructed by inserting an optical fiber deposited by a thin silicone cladding of cryptophane A into a fused-silica capillary. When different concentra...A novel mode-filtered light gas sensor has been reported. It was constructed by inserting an optical fiber deposited by a thin silicone cladding of cryptophane A into a fused-silica capillary. When different concentration of methane gas was introduced to the sensor, the phenomenon that mode-filtered light intensity decreased with the increasing concentration of methane was observed. And a linear relationship was obtained within the methane concentration range of 0.0-16.0% （v/v）. The detection limit was 0.06% （v/v）. The mode-filtered light sensor has been exploited to respond to various concentrations of methane gas at room temperature.展开更多
基金supported by the Key Project of National Natural Science Foundation of China(No.50534100)Project of Taiyuan Science and Technology Bureau of Shanxi Provincethe Foundation for Returned Overseas Chinese Scholars of Shanxi Province.
文摘A novel mode-filtered light gas sensor has been reported. It was constructed by inserting an optical fiber deposited by a thin silicone cladding of cryptophane A into a fused-silica capillary. When different concentration of methane gas was introduced to the sensor, the phenomenon that mode-filtered light intensity decreased with the increasing concentration of methane was observed. And a linear relationship was obtained within the methane concentration range of 0.0-16.0% （v/v）. The detection limit was 0.06% （v/v）. The mode-filtered light sensor has been exploited to respond to various concentrations of methane gas at room temperature.
