Abstract：To investigate automated calibration of piston gauges, a high-precision pressure transducer as an immediate in-situ transfer standard was introduced. Experiments were carried out to study the resolution and short-term stability of the transducer, and the influence of the transducer linear coefficient on the calibration result was evaluated. Comparative study of the new method and the traditional method shows their uncertainties are similar as of about 5×10-6(k=1) and the calibration results are in good agreement within the uncertainty. An automated calibration instrument for piston gauges was developed based on the new method with automation of pressure control, valve operation and data acquisition. The automated instrument improves the efficiency of the piston gauge calibration.
［1］Yang Y C,Yue J. Calculation of effective area for the NIM primary pressure standards［J］. PTB-Mitteilungen,2011, 121(3): 266-269.
［2］盛以唐. 活塞式压力计有效面积的研究及其在基准器上的应用［J］. 计量学报, 1982, 3(3):161-174.
［3］顾世杰, 王鲁, 刘鉴学, 等. 1500 MPa可控间隙活塞式压力计研究［J］. 计量学报, 2008, 29(1):54-59.
［4］杨远超, 悦进, 李燕华. CCM.P-K13传递标准的有效面积和形变系数及不确定度分析［J］. 计量学报, 2011, 32(5):441-445.
［5］刘爱东, 于梅. 振动自动校准系统的研究及实现［J］. 计量学报, 2009, 30(2):141-143.
［6］Girard M, Delajoud P. Automated mass handling for high performance pressure balances［C］//NCSL International Workshop and Symposium, Washington D.C., USA, 2005.
［7］黄石敏, 蔡晋辉, 姚燕, 等. 自动压力校验系统设计［J］. 中国计量学院学报, 2011, 22(3):242-245.
［8］孙马驰,林敏,郭斌.车用压力传感器自动化校准系统的设计［J］. 中国计量学院学报, 2013, 24(3):225-230.
［9］Dadson R S, Lewis S L, Peggs G N. The Pressure Balance: Theory and Practice［M］. London: HMSO, 1982.
［10］国家质量监督检验检疫总局. 气体活塞式压力计检定规程:JJG1086-2013［S］.北京:中国标准出版社, 2013.
［11］Miiller A P. Measurement performance of high-accuracy low-pressure transducers［J］. Metrologia, 1999, 36(6): 617-621.
［12］Hendricks J H, Miiller A P. Development of a new high-stability transfer standard based on resonant silicon gauges for the range 100 Pa to 130 kPa［J］. Metrologia, 2007, 44(3): 171-176.
［13］Kobata T, Olson D A. Accurate determination of equilibrium state between two pressure balances using a pressure transducer［J］. Metrologia, 2005, 42(6): S231-S234.
［14］Kobata T. Improved methods for comparing gas and hydraulic pressure balances［J］. Metrologia, 2009, 46(5): 591-598.
2017, Vol. 38 
