10 MN疊加式力標準機的研制
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
