红外辐射测量系统内外标定技术

来源 :红外与激光工程 | 被引量 : 0次 | 上传用户:aishangliuning
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为确保辐射测量精度,需要对红外辐射测量系统进行标定。在分析红外辐射测量系统工作原理的基础上,提出了内、外标定相结合的标定方法,区别于传统的标定方法,不再把测量系统当作“黑盒子”,而是对其内部分解进行分步标定,通过理论推导给出了内外标定方法计算公式。实验验证表明,该方法的标定精度与传统的全孔径黑体标定方法基本一致,两者之间的相对误差在1%以内,但该方法对外置大孔径面源黑体温度范围要求比较低,降低了黑体的研制难度和成本。
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