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  • 恒流裝置校準(zhǔn)活塞氣體流量計(jì)的方法研究
    中國(guó)測(cè)試雜志

    恒流裝置校準(zhǔn)活塞氣體流量計(jì)的方法研究
    潘光玲1, 雷  勵(lì)1, 楊光道2, 向麗萍1, 楊  詒1
    (1. 中國(guó)測(cè)試技術(shù)研究院,四川 成都 610021; 2. 中石油川慶鉆探工程有限公司川西鉆探公司,四川 成都 610051)
    摘  要:針對(duì)干活塞氣體流量計(jì)連續(xù)測(cè)量瞬時(shí)流量采用的間斷工作方式會(huì)造成較大的流場(chǎng)阻力波動(dòng),為消除阻力波動(dòng)對(duì)干活塞氣體流量計(jì)準(zhǔn)確校準(zhǔn)的影響,研究?jī)煞N恒流法(體積管氣體流量標(biāo)準(zhǔn)裝置配合調(diào)壓閥、皂膜氣體流量標(biāo)準(zhǔn)裝置傳遞恒流泵)的校準(zhǔn)方法,得到滿意的干活塞氣體流量計(jì)校準(zhǔn)結(jié)果。恒流泵傳遞比較法把皂膜氣體流量標(biāo)準(zhǔn)裝置和干活塞氣體流量計(jì)在量值溯源圖上聯(lián)系起來(lái),是對(duì)氣體小流量量值溯源體系的有效補(bǔ)充。
    關(guān)鍵詞:干活塞氣體流量計(jì);瞬時(shí)流量;恒流法;校準(zhǔn)方法
    中圖分類(lèi)號(hào):TH814;TM930.12;P207+.1;P416.6       文獻(xiàn)標(biāo)志碼:A      文章編號(hào):1674-5124(2013)03-0020-04
    Study on calibrating piston type gas flowmeters
    with constant current equipment
    PAN Guang-ling1, LEI Li1, YANG Guang-dao2, XIANG Li-ping1, YANG Yi1
    (1. National Institute of Measurement and Testing Technology,Chengdu 610021,China;
    2. Chuanxi Drilling Company,CNPC Chuanqing Drilling Engineering Company Limited,Chengdu 610051,China)
    Abstract: The lager resistance fluctuation would occur when the piston type gas flowmeter continuously measured the instantaneous flow rage by the discontinuous working mode. To avoid the influence of resistance fluctuation on the calibration of the piston type gas flowmeter, two calibration methods of constant current are researched, and the better calibration results of piston type gas flowmeter were achieved. The constant flow pump transmission comparison method makes the soap film gas flow standard facility be linked with the piston type gas flowmeter in mtrological traceability figure, and the calibration method is a supplemnt to the value traceability system of small gas flow.
    Key words: piston type gas flowmeter; instantaneous flow rate; constant current; calibration method
     
     
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