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Research on Automated Dissemination of Primary Standard for Pneumatic Piston Gauges |
ZENG Lin1,2,YANG Yuan-chao2,YUE Jin2,HUANG Qian2 |
1. Hunan Institute of Metrology and Test, Changsha, Hunan 410014, China
2. National Institute of Metrology, Beijing 100029, China |
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Abstract Based on the transducer-aided crossfloat (TAC) method, an automated calibration system for piston gauges has been developed and improved. The components and function of the calibration software based on the LabVIEW are introduced. The reliability of applying the automated calibration system on the dissemination of primary standard for pneumatic piston gauges is studied by comparison test against the traditional crossfloat method (CF). The transducer coefficient (γ) could be treated as 1 if the deviation is so small that the product of the deviation and the relative pressure difference (β) is less than 10-6. For the counter-pressure pneumatic piston gauges with the measurement upper limit of 7MPa, the fitting data of the full-scale and half-scale indicate that the pressure deformation of the piston has a certain degree of nonlinearity, so full-scale calibration should be carried out for the high-pressure piston; The thermal effect of the PG7607 piston base causes a piston temperature measurement error of 0.33 ℃, resulting in a pressure measurement error of 3×10-6, which is non-negligible for the primary standard; The calibration results for the 180kPa, 360kPa and 3MPa piston gauges determined by the automated system and the traditional method differ from each other are about 10%, 1% and 2% of the standard uncertainty, which verify the high reliability of the automated calibration system.
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Received: 29 May 2020
Published: 18 October 2021
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[1]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.
Yang Y C. Research on Automated Calibration Method for Piston Gauges[J]. Acta Metrologica Sinica, 2017, 38(6): 708-712.
[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.
Sheng Y T. Studies on the Effective Area of the Piston and Its Application to the National Standard[J]. Acta Metrologica Sinica, 1982, 3(3): 161-174.
[3]Yang Y C, Yue J. Calculation of effective area for the NIM primary pressure standards[J]. PTB Mitteilungen Amts Und Mitteilungsblatt Der Physikalisch Technischen Bundesanstalt Braunschweig Berlin, 2011, 121(3): 266-269.
[4]Yue J, Gluschko A, Sabuga W. Characterization of the new 1GPa piston-cylinder assembly of PTB[J]. Measurement, 2019, 134(10): 788-793.
[5]Scherschligt J, Olson D A, Driver R G, et al. Pressure Balance Cross-Calibration Method Using a Pressure Transducer as Transfer Standard[J]. Ncsli Measure, 2016, 11(1): 28-33.
[6]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.
[7]盛以唐, 黄国政, 韩慧文, 等. 20~100MPa压力量值国际比对[J]. 计量学报, 1988, 9(2): 88-94.
Sheng Y T, Huang G Z, Han H W, et al. An International Comparison of Pressure in the Range of 20~100MPa[J]. Acta Metrologica Sinica, 1988, 9(2): 88-94.
[8]国家质量监督检验检疫总局. JJG 1086-2013 气体活塞式压力计检定规程[S]. 2013.
[9]Dogra S, Yadav S, Bandyopadhyay A K. Computer simulation of a 1. 0GPa piston-cylinder assembly using finite element analysis (FEA)[J]. Measurement, 2010, 43(10): 1345-1354.
[10]Kartashev V I, Stetsyura V I, Fursa A N, et al. Increasing the Accuracy of Reproduction of Pressure by Means of the Ukrainian Secondary Standard of the Unit of Pressure[J]. Measurement Techniques, 2004, 47(1): 53-57.
[11]Dadson R S, Lewis S L, Peggs G N. The Pressure Balance: Theory and Practice[M]. London: HMSO, 1982.
[12]Kobata T, Olson D A. Accurate determination of equilibrium state between two pressure balances using a pressure transducer[J]. Metrologia, 2005, 42(6): S231.
[13]Kobata T. A fully automated calibration system for pressure balance[C]//IMEKO 20th TC3, 3rd TC16 and 1st TC22 Int. Conf. “Cultivating metrological knowledge”, Merida, Mexico, 2007.
[14]Yang Y C, Driver R G, Quintavalle J S, et al. An integrated and automated calibration system for pneumatic piston gauges[J]. Measurement, 2019, 134: 1-5.
[15]Scherschligt J, Cross C D, Quintavalle J, et al. Automated Piston Gauge Calibration System [J]. NCSLI Measure, 2018, 12(1): 42-45
[16]Paroscientific, Inc. Users Manual For Digiquartz Broadband Intelligent Instruments with Dual RS-232 and RS-485 Interfaces [Z]. USA: 2013.
[17]张忠立,王灿,林正皓, 等. 基于双向流固耦合技术的活塞式压力计研究[J]. 计量学报, 2021, 42(3): 276-281.
Zhang Z L, Wang C, Lin Z H, et al. Research of Piston Gauge Based on Two-way Fluid-structure Interaction Technique[J]. Acta Metrologica Sinica, 2021, 42(3): 276-281. |
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