用冲击法校准压电式力传感器的灵敏度  

Calibrate the sensitivity of piezoelectric force transducers by shock method

作　　者：王玲 Wang Ling(Shaanxi Institute Of Metrology Science)

机构地区：[1]陕西省计量科学研究院

出　　处：《上海计量测试》2023年第2期43-46,共4页Shanghai Measurement and Testing

摘　　要：通过分析压电式力传感器的结构及工作原理,同时利用实验室现有的比较法冲击加速度标准装置,设计了用冲击法校准该类传感器的灵敏度的简便可行而又可靠的新方法。由于冲击法可以产生较高的冲击加速度,因而拓宽了动态力的计量范围。举例进行了方法的验证,同时对校准结果的不确定度进行了评定,保证了该类传感器量值传递的准确性。By analyzing the structure and working principle of piezoelectric force transducers,and using the existing comparative shock acceleration standard equipment in the laboratory,this paper designs a simple,feasible and measurable new method to calibrate the sensitivity of such sensors by shock method.The shock method can produce high shock acceleration,thus broadening the measurement range of dynamic force.The method was verified by example,and the uncertainty of the calibration results was evaluated.The evaluation ensures the accuracy of the quantity and value transfer of this kind of sensor.

关 键 词：压电式力传感器 冲击校准发生器 动态信号分析仪 不确定度 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]