Calibration of a laboratory spectrophotometer for specular light by means of stacked glass plates.
Calibration of a laboratory spectrophotometer for specular light by means of stacked glass plates.
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通过堆叠玻璃板校准实验室分光光度计的镜面光。
DOI：
10.1063/1.1685012
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发表时间：
1971
期刊：
影响因子：
--
通讯作者：
A. Richardson
中科院分区：
文献类型：
--
作者：
W. Allen;A. Richardson
堆叠玻璃板已用于校准实验室分光光度计，光谱范围为 0.5–2.5 μ，用于镜面光。未校准的仪器在用于测量堆叠玻璃板的反射率和透射率时存在系统误差。校准首先包括确定由沉积在铝板上的硫酸钡涂料组成的标准的反射率；其次，利用三次方程对观测值和计算值之间的反射率和透射率残差进行近似；最后，通过计算机消除系统错误。该仪器经校准后，用于测量堆叠玻璃板的反射率和透射率时，精度可达1%。
Stacked glass plates have been used to calibrate a laboratory spectrophotometer, over the spectral range 0.5–2.5 μ, for specular light. The uncalibrated instrument was characterized by systematic errors when used to measure the reflectance and transmittance of stacked glass plates. Calibration included first, a determination of the reflectance of a standard composed of barium sulfate paint deposited on an aluminum plate; second, the approximation of the reflectance and transmittance residuals between observed and computed values by means of cubic equations; and, finally, the removal of the systematic errors by a computer. The instrument, after calibration, was accurate to 1% when used to measure the reflectance and transmittance of stacked glass plates.