摘要
通过复现温度间隔相近的3个高温固定点黑体,可以实现0.65μm高温计在900-2 500℃、0.9μm高温计在600~2 000℃范围内的内插,不确定度最好水平分别达到0.3~1.2℃和0.3~0.6℃(k=2)。通过其他非分度固定点黑体和高温变温黑体的验证,2种波长高温计与高温基准温标的一致性优于0.1℃。应用高温固定点可以满足精密光电高温计接近国际最高水平的校准,提升高温校准的不确定度水平。
A 0. 65 μm and a 0. 9 μm pyrometers are interpolated by three high temperature fixed points （HTFPs） , the best uncertainty is estimated 0. 3 - 1.2 ℃（k = 2） in 900 - 2 500 ℃ for the 0. 65 μm pyrometer and 0. 3 - 0. 6 ℃in 600- 2 000 ℃ for the 0. 9 p,m one separately. The pyrometers are also verified by the other fixed points and high temperature blackbody against the primary pyrometer, and the agreement is better than 0. 1 ℃. The HTPFs can be applied in the precise calibration of pyrometers to improve the level of measurement uncertainty in high temperature range.
出处
《计量学报》
CSCD
北大核心
2017年第5期584-588,共5页
Acta Metrologica Sinica
关键词
计量学
温标
高温计
高温固定点
内插方程
不确定度
metrology
temperature scale
pyrometer
high temperature fixed point
interpolation
uncertainty
