红外与毫米波学报, 2004, 23 (5): 396, 网络出版: 2006-05-10
影响实用化实时测温系统测温精度的几个因素
SEVERAL FACTORS OF INFLUENCING MEASUREMENT ACCURACY FOR A PRACTICAL REAL-TIME TEMPERATURE MEASUREMENT SYSTEM
辐射测温 ?馕虏蝗范ǘ?温度测量灵敏度 热释电探测器 激光器 temperature measurement by radiation temperature measurement inaccuracy temperature measurement sensitivity pyroelectric detector laser diode
摘要
基于Kirchhoff定律,利用半导体激光器及钽酸锂热释电探测器设计了一种实用化的实时测温系统.从待测目标表面的红外辐射特性、待测表面周围的其它辐射体、大气的透射特性以及测温系统本身这四个方面出发,对影响该系统测温精度的因素进行了详尽分析,并提出了提高测温精度的相应措施.实验结果表明,在测温范围673~1473K内,温度测量的不确定度在0.3%以内,符合设计要求.
Abstract
Based on the Kirchhoff law, a practical temperature real-time measurement system using laser diode and LiTaO 3 pyroelectric detector was developed. According to the infrared radiation characteristics of the measurement surface, surroundings, transmission features of atmosphere and the temperature measurement system itself, detailed analyses were given on the factors of influencing temperature measurement accuracy. And the measures on improving the temperature measurement accuracy were put forward. Experimental results show that the temperature measurement inaccuracy is within 0.3%, and it is suitable for the requirements.
施德恒, 刘玉芳, 孙金锋, 朱遵略. 影响实用化实时测温系统测温精度的几个因素[J]. 红外与毫米波学报, 2004, 23(5): 396. 施德恒, 刘玉芳, 孙金锋, 朱遵略. SEVERAL FACTORS OF INFLUENCING MEASUREMENT ACCURACY FOR A PRACTICAL REAL-TIME TEMPERATURE MEASUREMENT SYSTEM[J]. Journal of Infrared and Millimeter Waves, 2004, 23(5): 396.