活塞(光学)
量具(枪械)
圆柱
机械
压力测量
灵敏度(控制系统)
物理
材料科学
机械工程
工程类
光学
电子工程
波前
冶金
作者
Bian Hong,Zhengyu Pan,Shushi Gu,Zhongli Zhang
标识
DOI:10.1109/icsai.2018.8599365
摘要
This paper introduces a controlled-clearance dead-weight piston gauge for pressure up to 1500MPa. A research has been made carefully on the dependence of the fall rate of the piston to jacket pressure, the dependence of the jacket pressure to the measuring pressure and the variable rule of the characteristic parameter of the piston-cylinder assembly. The uncertainty of diameters of piston is better than 0.1 m. The uncertainty of the piston gauge is 0.02% (k=3), the sensitivity of which is 0. 03MPa. The pressure is deduced by the piston gauge based on Heydemann-Welch(H-W) model.
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