Acta Metrologica Sinica  2023, Vol. 44 Issue (8): 1229-1234    DOI: 10.3969/j.issn.1000-1158.2023.08.12
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Experimental Investigation of a Reciprocating Double-plunger Gas Flow Standard Device
XU Chun-wei1,ZHANG Gao-ming2,XU Zhi-peng2
1. Zhejiang Institute of Mechanical & Electrical Engineering, Hangzhou, Zhejiang 310053, China
2. Zhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University,
Hangzhou, Zhejiang 310018, China
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Abstract  To solve the problems of restricted dimension of cylinder and limited flow range of the plunger gas flow standard devices, a reciprocating double-plunger gas flow standard device was developed, operating modes including single-cylinder, parallel double-cylinder and tandem double-cylinder modes were explored. For different operating modes, the repeatability and accuracy of the device were verified by the calibration experiment of a sonic nozzle with the nominal flow rate of 0.06m3/h. Results revealed that the repetitive rate of the device was less than 0.02% at different modes, the errors of the device at single-cylinder and parallel double-cylinder modes were less than 0.02%, while the error of the device at tandem double-cylinder mode was less than 0.05%.
Key wordsmetrology      gas flow      reciprocating double-plunger      standard device     
Received: 06 December 2022      Published: 22 August 2023
PACS:  TB937  
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XU Chun-wei
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XU Chun-wei,ZHANG Gao-ming,XU Zhi-peng. Experimental Investigation of a Reciprocating Double-plunger Gas Flow Standard Device[J]. Acta Metrologica Sinica, 2023, 44(8): 1229-1234.
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http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2023.08.12     OR     http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2023/V44/I8/1229
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