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Odor pollution has become a global environmental issue of increasing concern in recent years, and the odor gas monitor is widely used to measure the odor concentration, in this study, the malodorous gas monitor of ultraviolet differential spectroscopy was designed and its performance and uncertainty were estimated. The results showed that the maximum indication errors were −0.50%FS, 0.34%FS, 2.14%FS, −1.58%FS, −1.12%FS, 1.40%FS, −2.40%FS and 1.30%FS, which met the specification requirement that the maximum indication error couldn’t be more than ± 10%FS. Moreover, the repeatability was less than 1%, and the stability was less than 5%/h, and the interference error was not more than 15%. Moreover, the extended uncertainty of the malodorous gas monitor was less than 3.0%, which indicated that the malodorous gas monitor could be used to transfer and traceability the quantity.

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Performance Evaluation of the Malodorous Gas Monitor

  • 会议论文

  • 发表日期：

    2025年

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  • Junchen Zou,
  • Xiaoquan Sun,
  • Yanzhao Wang,
  • Xinyuan Cui,
  • Qin Wu,
  • Yongqiang Chen,
  • Ling Yang,
  • Zhifeng He,
  • Guang Zhou,
  • Xueyang Gao

摘要

Odor pollution has become a global environmental issue of increasing concern in recent years, and the odor gas monitor is widely used to measure the odor concentration, in this study, the malodorous gas monitor of ultraviolet differential spectroscopy was designed and its performance and uncertainty were estimated. The results showed that the maximum indication errors were −0.50%FS, 0.34%FS, 2.14%FS, −1.58%FS, −1.12%FS, 1.40%FS, −2.40%FS and 1.30%FS, which met the specification requirement that the maximum indication error couldn’t be more than ± 10%FS. Moreover, the repeatability was less than 1%, and the stability was less than 5%/h, and the interference error was not more than 15%. Moreover, the extended uncertainty of the malodorous gas monitor was less than 3.0%, which indicated that the malodorous gas monitor could be used to transfer and traceability the quantity.