仪器仪表学报
儀器儀錶學報
의기의표학보
CHINESE JOURNAL OF SCIENTIFIC INSTRUMENT
2010年
2期
459-463
,共5页
气动助推式校准装置%传递力质量块%振动模型%关键技术%实验研究
氣動助推式校準裝置%傳遞力質量塊%振動模型%關鍵技術%實驗研究
기동조추식교준장치%전체력질량괴%진동모형%관건기술%실험연구
pneumatic push negative step force calibration device%passing force mass%vibration model%key techniques%test study
为了消除传递力质量块对力传感器动态校准的影响,介绍了气动助推负阶跃力校准装置的工作原理,建立了校准装置的振动模型和运动学方程,并进行了运动学和关键技术分析,实验研究表明了气动助推校准装置能够消除传递力质量块的影响,提供理想的负阶跃力信号;其重复性好,重复性误差小于2 μs;建立的振动模型基本合理,减少切刀压块的质量和增加助推力能够缩短校准装置的下降沿时间;为2 000 kN动态力校准装置提供理论基础和设计依据.
為瞭消除傳遞力質量塊對力傳感器動態校準的影響,介紹瞭氣動助推負階躍力校準裝置的工作原理,建立瞭校準裝置的振動模型和運動學方程,併進行瞭運動學和關鍵技術分析,實驗研究錶明瞭氣動助推校準裝置能夠消除傳遞力質量塊的影響,提供理想的負階躍力信號;其重複性好,重複性誤差小于2 μs;建立的振動模型基本閤理,減少切刀壓塊的質量和增加助推力能夠縮短校準裝置的下降沿時間;為2 000 kN動態力校準裝置提供理論基礎和設計依據.
위료소제전체력질량괴대력전감기동태교준적영향,개소료기동조추부계약력교준장치적공작원리,건립료교준장치적진동모형화운동학방정,병진행료운동학화관건기술분석,실험연구표명료기동조추교준장치능구소제전체력질량괴적영향,제공이상적부계약력신호;기중복성호,중복성오차소우2 μs;건립적진동모형기본합리,감소절도압괴적질량화증가조추력능구축단교준장치적하강연시간;위2 000 kN동태력교준장치제공이론기출화설계의거.
In order to remove the effect of passing force mass on force sensor dynamic calibration, the working principle of pneumatic push calibration device is introduced, and its vibration model and kinematic equation are established, and the related kinematics and key techniques are analyzed. Through test, a conclusion is drawn: the pneumatic push calibration device can remove the effect of passing force mass effect and provide ideal negative step signal; its reproducibility is good, and the error is 2 μs; the vibration model is reasonable, the falling time of the step signal can be shortened by reducing cutter mass and adding propel force, which provide a theoretical and analytical basis for the design of a 2 000 kN dynamic calibration device.