计量学报2017，Vol.38Issue(6)：708-712,5.DOI:10.3969/j.issn.1000-1158.2017.06.11
活塞压力计自动化校准方法研究
Research on Automated Calibration Method for Piston Gauges
摘要
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.关键词
计量学/活塞压力计/压力传感器/自动化校准Key words
metrology/piston gauge/pressure transducer/automated calibration分类
通用工业技术引用本文复制引用
杨远超..活塞压力计自动化校准方法研究[J].计量学报,2017,38(6):708-712,5.基金项目
国家国际科技合作项目(2012DFA71810) （2012DFA71810）
