无论是目测或自动亮度高温计有效波长的确定,经典的做法均是将公式λ_T=(integral from n=1 to ∞ E(λ,T)τ_λV_λdλ)/integral from n=1 to ∞ E(λ,T)/λτ_λV_λdλ变为有限项求和公式λ_T=(sum from i=1 to n E(λ_1,T)τ_(λi)...无论是目测或自动亮度高温计有效波长的确定,经典的做法均是将公式λ_T=(integral from n=1 to ∞ E(λ,T)τ_λV_λdλ)/integral from n=1 to ∞ E(λ,T)/λτ_λV_λdλ变为有限项求和公式λ_T=(sum from i=1 to n E(λ_1,T)τ_(λi)V_(λi)△λ_i)/sum from i=1 to nE(λ_i,T)/λ_i ×τ_(λi)V_(λi)△λ_i式中λ_T——对应温度T的极限有效波长 E(λ,T)——被测物体表面光谱辐射强度τ_λ——温度计内光学零件和滤色片总的光谱透过率 V_λ——探测元件的光谱探测率进行计算,求出λ_T后再算出所需温区的平均有效波长λ_e。显然n取值越大,计算精度越高,工作量也越大。展开更多
经典亮度温度和有效波长理论忽略了环境辐射的影响,且实际测温理论偏离了亮度温度的定义.考虑了环境辐射影响,提出新的有效亮度温度概念,使有效亮度温度适用于存在环境辐射的任意温度测量;进一步提出了基于带通辐射温度计测量的积分有...经典亮度温度和有效波长理论忽略了环境辐射的影响,且实际测温理论偏离了亮度温度的定义.考虑了环境辐射影响,提出新的有效亮度温度概念,使有效亮度温度适用于存在环境辐射的任意温度测量;进一步提出了基于带通辐射温度计测量的积分有效亮度温度和等效波长理论,使辐射温度计的"主观"测量结果与物体的客观辐射特性相联系,避免了实际测量理论偏离被测量定义.
Abstract：
The theories of classical radiance temperature (RT) and effective wavelength for pyrometry neglect the influence of ambient radiation,, and the actual measurement theories deviate from the strict definition of RT. Considering the effect of the ambient radiation, the new concept of the effective radiance temperature (ERT) which is suitable for a measurement at an arbitrary temperature is proposed. Based on the band-pass radiation thermometer, the theories of integral effective radiance temperature and equivalent wavelength are developed further, in which the deviations from the definition of ERT are avoided.展开更多
文摘无论是目测或自动亮度高温计有效波长的确定,经典的做法均是将公式λ_T=(integral from n=1 to ∞ E(λ,T)τ_λV_λdλ)/integral from n=1 to ∞ E(λ,T)/λτ_λV_λdλ变为有限项求和公式λ_T=(sum from i=1 to n E(λ_1,T)τ_(λi)V_(λi)△λ_i)/sum from i=1 to nE(λ_i,T)/λ_i ×τ_(λi)V_(λi)△λ_i式中λ_T——对应温度T的极限有效波长 E(λ,T)——被测物体表面光谱辐射强度τ_λ——温度计内光学零件和滤色片总的光谱透过率 V_λ——探测元件的光谱探测率进行计算,求出λ_T后再算出所需温区的平均有效波长λ_e。显然n取值越大,计算精度越高,工作量也越大。
文摘经典亮度温度和有效波长理论忽略了环境辐射的影响,且实际测温理论偏离了亮度温度的定义.考虑了环境辐射影响,提出新的有效亮度温度概念,使有效亮度温度适用于存在环境辐射的任意温度测量;进一步提出了基于带通辐射温度计测量的积分有效亮度温度和等效波长理论,使辐射温度计的"主观"测量结果与物体的客观辐射特性相联系,避免了实际测量理论偏离被测量定义.
Abstract：
The theories of classical radiance temperature (RT) and effective wavelength for pyrometry neglect the influence of ambient radiation,, and the actual measurement theories deviate from the strict definition of RT. Considering the effect of the ambient radiation, the new concept of the effective radiance temperature (ERT) which is suitable for a measurement at an arbitrary temperature is proposed. Based on the band-pass radiation thermometer, the theories of integral effective radiance temperature and equivalent wavelength are developed further, in which the deviations from the definition of ERT are avoided.
