Research on Expanding CCD Measuring Range by Neutral Filter

Citation

  • Authors: PENG Xiaoqi, SUN Yuan, TANG Ying
  • Article Title: Research on Expanding CCD Measuring Range by Neutral Filter
  • Journal Name: Journal of Hunan University of Technology (translation)
  • Year of Publication: 2007
  • Volume and Issue Number: 21(3)
  • Page Numbers: 35-38

Keywords

  • 中性滤光片 / Neutral Filter
  • CCD (电荷耦合器件) / Charge-Coupled Device
  • 测温范围 / Temperature Range
  • 高温测量 / High-Temperature Measurement
  • 比色测温 / Colorimetric Thermometry
  • 光电转换特性 / Photoelectric Conversion Characteristics
  • 非饱和区 / Non-Saturation Area
  • 饱和 / Saturation
  • 单色辐射亮度 / Monochromatic Radiation Luminance
  • 光谱响应特性 / Spectral Response Characteristics
  • 黑体 / Blackbody

Brief

This article investigates the use of neutral filters to expand the temperature measurement range of CCDs in colorimetric thermometry but concludes that their effect is limited and insufficient for high-temperature measurement requirements.

Summary

This article explores whether neutral filters can effectively widen the temperature measurement range of color CCDs used in two-color thermometry for high-temperature applications. The research analyzes the CCD's photoelectric conversion characteristics and the relationship between radiator temperature and monochromatic radiation brightness. It concludes that while neutral filters can offer some expansion of the measuring range, the effect is limited and not significant enough to meet the demands of high-temperature measurement. Experimental results support this conclusion, indicating that other methods are needed to significantly enhance the CCD's temperature measurement dynamic range.

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