Research on Neutral Standard Filters for Calibration of Transmissive Opacity Meters

Citation

  • Authors: 王文光, 刘文滨, 王淑萍 (Wang Wenguang, Liu Wenbin, Wang Shuping)
  • Title: 黑龙江省自然科学基金资助项目 透射式烟度计检定用中性标准滤光片的研制 (Research on Neutral Standard Filters for Calibration of Transmissive Opacity Meters Supported by Heilongjiang Provincial Natural Science Foundation)
  • Source/Affiliation: 黑龙江省计量科学研究院 (Heilongjiang Institute of Metrology) - This is the institution listed for the authors.
  • Funding Body: 黑龙江省自然科学基金 (Heilongjiang Provincial Natural Science Foundation) - This indicates the funding source for the project.

Keywords

  • 中性标准滤光片 / Neutral Standard Filters
  • 透射式烟度计 / Transmissive Opacity Meter
  • 光吸收比 / Light Absorption Ratio
  • 检定 / Calibration
  • 光吸收比 / Light Absorption Ratio
  • 光吸收系数 / Light Absorption Coefficient
  • 朗伯-比尔定律 / Lambert-Beer Law
  • 透射比 / Transmittance
  • 中性玻璃 / Neutral Glass
  • JJG1156-2011
  • Absolute Measurement Method
  • High-Precision Spectrophotometer

Brief

This article details the research and development of neutral standard filters for calibrating transmissive smoke meters in Heilongjiang Province, covering their underlying principles, design process, testing methodologies, error analysis, and comparison with both domestic and international standards for measurement accuracy.

Summary

This article describes the research and development of neutral standard filters for calibrating transmissive smoke meters, focusing on the underlying principles of smoke meters and neutral filters, the design and testing of the filters (including spectral characteristics, temperature stability, uniformity, and long-term stability), the methods used for accurate value assignment and traceability to national standards, a detailed error analysis considering various factors, and the achievement of filters meeting national一级标准物质 (Class A standard substance) specifications, thus filling a domestic gap in this area of metrology.

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