The basic object of on-line gas analysis is to perform accurate and continuous measurement, but it is hard to ensure its realization because of a variety of interferences. This paper discusses the sources of interference (background components, sample processing, and electric parts) , quantitative analysis of errors due to interference, and anti-interference methods with a view to improve and guarantee the measurement accuracy. Anti-interference is an urgent technological subject, and many advances have been achieved. This paper is a review of the status of generalized anti-interference for on-line gas analysis system.%在线气体分析技术的本质和根本目的就是连续计量的准确度,而各种原因和形式的干扰使计量准确度很难保障.从工程应用实践出发,在干扰组分干扰、样气处理干扰、电气干扰等三个相关领域研究干扰的来源,干扰影响误差的定量分析以及抗干扰的措施,进而有效保障和提高计量准确度,是十分紧迫的工程技术课题.现在已经积累和取得了许多有现实操作性的进展,本文是在线气体分析工程技术广义抗干扰的综述性总结.
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