S型测力传感器的动态特性与标定

本文对 S 型测力传感器的动态特性进行了研究。采用模态分析测量技术,测定了传感器的固有频率、模态质量、模态刚度、模态阻尼和阻尼比,并以动画形式显示了其主振型.作出激振力与传感器应变片输出信号的传递函数幅频和相频特性曲线,可简便地确定传感器工作频率范围及相应的误差。

Dynamic Characteristics and Calibration of S shape Force Transducer

The dynamic characteristics of S shape force transducers is tested.The resonance frequency,modal mass,modal stiffness,modal damping and ratio of damping of the transducer are measured by modal identification technique.The vibration mode is made to be able to be displayed on the screen. The amplitude frequence and phase frequency curves of transfer function for exciting force and output signal of the transducer are obtained.These can be used to determine frequency range and error of the transducer.