摘要
介绍用于变压器油中气体监测的色谱分析技术及存在的不足 ,分析热导池检测器的工作原理和MEMS技术的特点 ,在此基础上根据实际需求 ,设计了一个由基于MEMS技术的TCD构成的变压器油中气体在线监测系统 ,实验表明 ,该系统灵敏度、稳定性等均达到了现场检测的需求 。
The gas chromatogram technology that is now widely used for gas analysis of transformer oil and its deficiency are introduced. The principle of TCD (thermal conductivity detector) and the characteristic of MEMS (micro electro-mechanical system) technology are also analyzed. A gas monitoring system of transformer oil composed of TCD based on MEMS is designed. Experiments indicate that the sensitivity and stability of the system reaches the requirement of detecting and can be used in the industrial locale.
出处
《化工自动化及仪表》
EI
CAS
北大核心
2004年第6期48-51,共4页
Control and Instruments in Chemical Industry
基金
国家自然科学基金资助项目 ( 5 0 2 770 3 9)
关键词
色谱技术
微机电系统
热导池检测器
变压器
chromatogram technology
micro electro-mechanical system
TCD
transformer
