Development of calibration device for on-line atmospheric gas analyzers. (February 2020)

• Record Type: Journal Article
• Authors: Zhou, Zeyi; Zhou, Yunchang; He, Chunlei; Bi, Zhe
• Is Part Of: Measurement. Volume 151(2020)
• Publication Date: 2020-02
• Subjects: On-line calibration -- Admixing method -- Atmospheric gas analyzers; Weights and measures -- Periodicals; Measurement -- Periodicals; Measurement; Weights and measures; Periodicals; 530.8
• DOI: 10.1016/j.measurement.2019.107265
• Languages: English
• ISSNs: 0263-2241

Abstract

Highlights: On-line calibration device for atmospheric gas analyzers is developed. Integrated calibration methods is proposed in which reference materials are added to air matrix. Over ten-years time gas mixtures standard prepared by invented membrane permeation system. Abstract: An on-line calibration device for atmospheric gas analyzers is developed by combining the dynamic gas mixtures preparation system of membrane permeation which is situated in the automated air monitoring station with a standard admixing air matrix method. The continuous, standard admixing air matrix and real-time online calibration of SO2, NO2, CO gas analyzers for automated air monitoring stations are realized with the calibration uncertainties less than 3% (k = 2). At the same time, in the calibration device, the service life of the newly invented membrane permeation system is several times longer than that of the traditional method.