摘要
为消除复合温度传感器所形成的在线黑体空腔"不等温性"和"非密闭性"对测量的影响,采用矩形区域近似法进行了不等温有效发射率的计算。在分析传感器几何特性、材料发射率、温度分布和环境温度对有效发射率影响的基础上,给出了传感器结构的优化参数。实验表明:优化后的传感器具有较高灵敏度和准确度。
In order to eliminate the error of non-isothermalness and non-airtightness of online blackbody cavity,calculation formulas for non-isothermalness effective emissivity of compound temperature sensor are presented by using rectangular-region approximation. On the basis of factors analysis of structure, material emissivity,temperature distribution and surrounding temperature, the sensor's optimum parameters are obtained.The optimum parameters can improve the sensitivity and accuracy.
出处
《传感器技术》
CSCD
北大核心
2004年第3期14-16,20,共4页
Journal of Transducer Technology
基金
国家自然科学基金资助项目(50174021)
