靜重式力標準機砝碼交換力平衡控制技術

靜重式力標準機砝碼交換力平衡控制技術
唐純謙[1] 張學成[2] 于立娟[2] 周長明[2][1]中國測試技術研究院,四川成都610021 [2]吉林大學,吉林長春130025
摘　要:靜重式力標準機利用少量的砝碼，進行相等力值間隔逐級加、卸荷時，需要交換砝碼。當砝碼進行交換時出現逆負荷現象，會對被檢測力儀的示值產生影響。闡述了靜重式力標準機采用的交換砝碼方法是建立在利用彈性力替代砝碼重力，砝碼交換過程中重力與彈性力達到平衡的基本原理。提出了實現靜重式力標準機砝碼交換時系統達到力平衡的一種預加荷裝置，經砝碼交換力平衡控制的力學分析與實驗驗證，靜重式力標準機采用預加負荷實施倒碼力平衡控制的方法在理論上和技術上是可行的、有效的。[著者文摘]

關鍵詞:靜重式力標準機 砝碼交換 逆負荷現象 力平衡控制 預加荷裝置
分類號:　TB931[免標]文獻標識碼：A文章編號：1672-4984（2006）06-0020-03欄目信息：計量技術與工程測試
相關文獻:主題相關 全文快照　　　

Control technology of force balance in exchanging weights on deadweight force standard machineTANG Chun-qian, ZHANG Xue-cheng, YU Li-juan, ZHOU Chang-ming 1. National Institute of Measurement and Testing Technology, Chengdu 610021, China; 2. Jilin University, Changchun 130025, ChinaAbstract:Weights exchanges are common used in deadweight force standard machine when weight of equal value interval are uploaded and/or downloaded step by step. But the counter-force phenomenon could occur and the indication of testing dynamometer would be influenced.The paper presented the exchanging weights principle based on counterpoising the elastic force and the gravity of weights and introduced a preloading device used as force balancing in exchanging weights.This method that force balance control through preloading is feasible and effective theoretically and technically and has been analyzed in mechanics and proved by experiment.[著者文摘]

Key words:Deadweight force standard machine;Weight change;Counter-force phenomenon;Force balance control;Preloading device

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