Abstract：Using labview programming and stepper motor controller, an automatic measuring system of immersion profiles was established. The system controlled the height of standard platinum resistance thermometer(SPRT) in thermometer well by the stepper motor controller, and measured the resistance value in different heights of SPRT by the AC bridge which accuracy is 0.02×10-6. By linear fitting, the hydrostatic pressure correction coefficient of water triple point cells was obtained. The effects of bushing on the immersion profiles were studied, and the experimental results show that the experimental value of the hydrostatic pressure correction coefficient of water triple point cells is very close to the theoretical value when the ininer diameters are 16 mm and 18 mm, the difference is less than 0.4 μK/cm. The effect of bushing on the hydrostatic pressure correction coefficient is less than 0.5 μK/cm.
王鹏,胡子峰,朱佳奇,闫小克,姜虹,蒲玲,陈功. 水三相点容器的浸没特性及套管对浸没特性的影响[J]. 计量学报, 2017, 38(6): 693-696.
WANG Peng,HU Zi-feng,ZHU Jia-qi,YAN Xiao-ke,JIANG Hong,PU Ling,CHEN Gong. Research on the Immersion Profiles with Water Triple Point Cells and the Effect of Bushing on the Immersion Profiles. Acta Metrologica Sinica, 2017, 38(6): 693-696.
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2017, Vol. 38 
