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Research on the Calibration of 0.9μm Radiation PyrometerBased on High Temperature Blackbody |
LUAN Hai-feng1,LU Xiao-feng2,WANG Jing-hui2,BAI Cheng-yu2 |
1. Jiangsu Institute of Metrology, Nanjing, Jiangsu 210023, China
2. National Institute of Metrology, Beijing 100029, China |
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Abstract The calibration method of 0.9 μm pyrometer with variable-temperature blackbody as reference source is introduced. The uncertainty source of the pyrometer is analyzed through the measurement of the gain ratio, the size-of-source effect and the distance effect. Moreover, the other vital factors such as stability and uniformity of high-temperature blackbody are analyzed. The new method extended the wavelength range of the existing pyrometer. The expanded uncertainties of the scale are 0.6~1.2 ℃ (k=2) between the temperature range 600~2 000 ℃.
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[1]赵琪,原遵东,王京平,等.用于新温标ITS-90的直流光电温度比较仪[J].计量学报,1990,11(4):241-247.
[2]原遵东,段宇宁,王铁军,等.复现银凝固点以上国际温标(ITS-90)[J].现代计量测试,2001,(2):13-20.
[3]Schreiber P E, Menz J. A linear pyrometer LP4 Technical Documentation[R].KE 256-6,2007.
[4]原遵东,赵琪,段宇宁,等.新型精密光温计[J].计量学报,2003,24(4):257-261.
[5]段宇宁,赵琪,原遵东,等.辐射源尺寸效应研究[J].计量学报,1996,17(3):161-166.
[6]栾海峰,王征.测量距离影响辐射温度计检定结果的实验研究[J].计量学报,2014,35(6):588-590.
[7]Yoon H W, Allen D W, Saunders R D. Methods to Reduce the Size-of-Source Effect in Radio-meters [J]. Metrologia,2005,42(2):89-96.
[8]卢小丰,原遵东,王景辉,等.以“固定点-高温计”方式传递961.78 ℃以上国际温标[J].计量学报,2014,35(3):193-197.
[9]卢小丰,肖小庭,王景辉,等.多固定点法分度0.9 μm精密高温计[C]//第七届全国温度测量与控制技术学术交流会,杭州,2015. |
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