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    10 MN疊加式力標準機的研制

    2013-10-23 胡紹誠

    摘  要:簡述10 MN疊加式力標準機的工作原理,通過對橫梁、加載系統、液壓系統、控制系統以及測試系統進行創新設計,并采用新的力值加載結構和滿足稱重傳感器、標準測力儀的測試系統,成功研制高精度10 MN疊加式力標準機。該10 MN疊加式力標準機示值重復性不大于0.02%,力值誤差在±0.05%內,相對擴展不確定度優于0.1%(k=2)。
    關鍵詞:疊加式力標準機;大力值;示值重復性;力值誤差;相對擴展不確定度
    中圖分類號:TP212.1+2;TB931;TM930.114;TP274.+2    文獻標志碼:A    文章編號:1674-5124(2013)05-0024-04
    Preparation of 10 MN build-up force standard machine
    HU Shao-cheng1, CHEN Qin2, LIU Yu-cheng3
    (1. Hangzhou Tansite Instrument and Equipment Co.Ltd.,Hangzhou 311106,China;
    2. Zhejiang Test Academy of Quality and Technical Supervision,Hangzhou 310013,China;
    3. Zhejiang University,Hangzhou 310000,China)
    Abstract: The working principle of 10 MN build-up force standard machine(BM) is introduced in the paper. Innovative designs have been done on crossbeam, loading system, control system and testing system; besides, new constructors to load force, and a testing system which meet the weighing sensor and force standard machine have been taken to ensure the accuracy of the whole system so that the 10 MN build-up force standard machine can be successfully manufactured. The performance of the 10 MN BM is measured. The testing results indicate that the indication repeatability is not bigger than 0.02%, force value error is between-0.05% and +0.05%, and the relative expanded uncertainty (k=2) is smaller than 0.1%.
    Key words: build-up force standard machine(BM); great force; indication repeatability; force value error; relative expanded uncertainty
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