Commercial charge-coupled device (CCD) cameras are used widely in industrial applications. This paper uses a commercial CCD camera to develop a spectral band CCD-based pyrometer. To improve the calibration accuracy, a thermometry model based on the extended effective wavelength is introduced to describe the pyrometer. The Tikhonov regularization method is employed to acquire the stabilized solutions for the model parameters considering their sensitivities to the perturbations in the calibration data. Therefore, the relationships between the temperature measurement performances and the system parameters, namely, the electron gain and F-number, are analyzed in terms of the temperature measurement range and sensitivity. Meanwhile, the error and uniformity of the temperature measurements are also investigated using a blackbody furnace. The experimental results show that the temperature measurement range for the designed pyrometer is 800-1203 °C, in which the sensitivity is 0.4906-35.64 °C-1 and the average relative error and non-uniformity of the temperature measurements are 2.5‰ and 1.36%, respectively.

中文翻译：

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基于光谱带电荷耦合器件的高温计校准与测量性能分析

商用电荷耦合器件 (CCD) 相机广泛用于工业应用。本文使用商用 CCD 相机开发基于光谱带 CCD 的高温计。为了提高校准精度，引入了基于扩展有效波长的测温模型来描述高温计。考虑到模型参数对校准数据扰动的敏感性，采用 Tikhonov 正则化方法获取模型参数的稳定解。因此，从温度测量范围和灵敏度方面分析了温度测量性能与系统参数，即电子增益和F数之间的关系。同时，还使用黑体炉研究了温度测量的误差和均匀性。