摘要
目的:针对带自校准线圈的拾振器的现场自校准问题,进行恒压校准方法的研究。方法:在分析伺服式拾振器原理的基础上,从理论上推导了基于恒压校准的伺服式拾振器自校准装置的原理,设计并搭建了基于恒压校准的伺服式拾振器自校准装置,并进行了实验研究。结果:研究表明,基于恒压校准的伺服式拾振器自校准装置的测量不确定度小于2%。结论:此方法可以实现941型、891型等伺服式拾振器的自校准。
Aims: To study the constant pressure calibration method of a vibration picker with self-calibration coil. Methods: The principle of self-calibration device of servo vibration picker based on constant pressure calibration was deduced theoretically. The self-calibration device of servo vibration picker based on constant pressure calibration was designed and built;and the experimental research was carried out. Results: The experimental results showed that the uncertainty of the self-calibration device based on constant pressure calibration was less than 2%. Conclusions: This method can realize the self-calibration of 941-type and 891-type servo vibration pickers.
作者
方翠
郭天太
陈红江
匙庆磊
孔明
FANG Cui;GUO Tiantai;CHEN Hongjiang;CHI Qinglei;KONG Ming(College of Metrology and Measurement Engineering,China Jiliang University,Hangzhou 310018,China;Hunan Institute of Metrology and Test,Changsha 410014,China;Institute of Engineering Mechanics,China Seismological Bureau,Haerbin 150090,China)
出处
《中国计量大学学报》
2019年第3期269-273,共5页
Journal of China University of Metrology
基金
国家重点研发计划项目(No.2017YFF0205003)
湖南省科技创新计划项目(No.2018XK2008)
关键词
计量
伺服式拾振器
自校准
恒压校准
测量不确定度
metrology
servo vibration picker
self-calibration
constant voltage calibration
measurement uncertainty
