活塞式压力计的砝码类型有压力标称砝码和质量标称砝码,二者产生误差的原理不同,导致误差结果也不相同。针对自由形变活塞,以形变系数对活塞有效面积的影响为基础,建立了压力误差模型,推导了使用压力标称砝码和质量标称砝码所产生压力相对误差的通项公式。以测量范围为10~510MPa的活塞式压力计为研究对象,进行误差计算和对比分析,获得了2种砝码压力误差的变化规律。结果表明,同等条件下相较于质量标称砝码,压力标称砝码在各压力段内,由于重复使用无编号的小砝码会产生额外误差,最大可达-0.0041%。
Abstract
The types of weights used in existing piston pressure gauges are pressure nominal weights and mass nominal weights,both of which produce different principles of error and lead to different outcome of error. For free distortion pistons,a pressure error model is developed based on the effect of the deformation coefficient on the effective area of the piston,and a general formula for the relative error in pressure generated by using pressure nominal weights and mass nominal weights is derived. Using a piston pressure gauge with a measurement range of 10 to 510MPa as the object of study,error calculations and comparative analyses are carried out to obtain the variation pattern of the pressure errors of the two types of weights. The results show that,under the same conditions,the pressure scale weights produce an additional error of up to -0.0041%within each pressure band due to the repeated use of small,unnumbered weights compared to the mass scale weights.
关键词
压力计量 /
活塞式压力计 /
计量误差 /
质量标称砝码 /
压力标称砝码
Key words
pressure measurement;piston pressure gauge;metrology error /
mass nominal weight /
pressure nominal weight
{{custom_sec.title}}
{{custom_sec.title}}
{{custom_sec.content}}
参考文献
［1］王淮阳, 胡珊珊, 刘正士, 等. 双活塞式高精度深海压力模拟方法［J］. 计量学报, 2021, 42(2): 199-203.
Wang H Y, Hu S S, Liu Z S, et al. High Precision Deep Sea Pressure Simulation Method with Double Pistons［J］. Acta Metrologica Sinica, 2021, 42(2): 199-203.
［2］王丽, 盛晓岩. 数字式气体活塞式压力计的活塞系统设计［J］. 测控技术, 2012, 31(7): 13-15.
Wang L, Sheng X Y. Piston-Cylinder Assembly Design of the Digital Piston Pressure Gauge［J］. Measurement & Control Technology, 2012, 31(7): 13-15.
［3］Heydemann P L M, Welch B E. Experimental Thermodynamics［M］. London: International Union of Pure and Applied Chemistry, 1975: 147-202.
［4］洪宝林. 力学计量 ［M］. 北京: 原子能出版社, 2002.
［5］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.
Yang Y C, Yue J, Li Y H. The Effective Area and Distortion Coefficient of CCM. P-K13 Transfer Standard and the Analysis of Uncertainty ［J］. Acta Metrologica Sinica, 2011, 32(5): 441-445.
［6］Scherschligt J, Cross C D, Quintavalle J, et al. Automated Piston Gauge Calibration System［J］. NCSLI Measure, 2018, 12(1): 42-45.
［7］王琛, 刘环宇, 杨远超, 等. 500MPa活塞式压力计活塞系统关键参数设计［J］. 计量学报, 2021, 42(12): 1624-1628.
Wang C, Liu H Y, Yang Y C, et al. Design of Key Parameters of Piston-cylinder Assembly of 500MPa Piston Pressure Gauge［J］. Acta Metrologica Sinica, 2021, 42(12): 1624-1628.
［8］张遥奇, 曾麟, 陈岳飞. 可控间隙活塞式压力计的理论模型构建及其应用［J］. 中国检验检测, 2020, 28(5):17-20.
Zhang Y Q, Zeng L,Chen Y F. Study and Application Theoretical Model of Controlled-clearance Piston Pressure Gauge［J］. China Inspection Body & Laboratory, 2020, 28(5):17-20.
［9］周宇仁, 林正皓, 张忠立. 活塞式压力计无编号砝码的误差分析与修正［J］. 中国仪器仪表, 2022(4): 62-65.
Zhou Y R, Lin Z H, Zhang Z L. The Error Analysis and Correction about no Order Weights of Piston Gauge［J］. China Instrumentation, 2022(4): 62-65.
［10］张金亮. 气体活塞式压力计压力专用砝码质量的检定问题［J］. 计测技术, 2014, 34(4): 83-85.
Zhang J L. Verification of the weight quality of the gas piston manometer pressure special ［J］. Metrology & Measurement Technology, 2014,34(4):83-85.
［11］JJG 99-2006 砝码检定规程［S］. 2006.
［12］李燕华. 活塞式压力计专用砝码质量在计算和修正中的问题 ［J］. 计量技术, 2007(4): 50-52.
［13］Sabuga W, Molinar G, Buonanno G, et al. Calculation of the distortion coefficient and associated uncertainty of PTB and LNE 1 GPa pressure balances using finite element analysis—EUROMET project 463［J］. Metrologia, 2005, 42(6): S202.
［14］Kajikawa H, Ide K, Kobata T. Precise determination of the pressure distortion coefficient of new controlled-clearance piston-cylinders based on the Heydemann-Welch model［J］. Review of Scientific Instruments, 2009, 80(9): 095101.
［15］Fitzgerald M P, Sutton C M. Pressure balance elastic distortion: experiment versus theory［J］. Metrologia, 2005, 42(6): S239.
［16］Yang Y C, Yue J. Determination of the distortion coefficient of a 500 MPa free-deformation piston gauge using a controlled-clearance one up to 200 MPA［C］//XX IMEKO World Congress Metrology for Green Growth. Busan, Korea, 2012.
［17］Rab S, Yadav S, Haleem A. A laconic capitulation of high pressure metrology［J］. Measurement, 2022, 187: 110226.
［18］Dadson R S, Lewis S L, Peggs G N. The Pressure Balance: Theory and Practice［M］. London: HMSO, 1982.
［19］GB/T 30432-2013 液体活塞式压力计［S］. 2013.
基金
辽宁省教育厅科学研究经费项目(LJKZ0510);中国计量科学研究院基本科研业务费重点领域项目(AKYZD2303-2)
PDF(344 KB)
