摘要
测量噪声是影响传感器动态补偿效果的主要因素，对在噪声环境下传感器动态补偿所能达到的理想效果进行了研究。提出根据测量噪声确定传感器动态补偿后理想工作带宽的方法，使用该理想带宽可进一步确定补偿后时域性能指标中调节时间与超调量的理想值。将该方法应用于应变天平的动态校准实验，验证了其有效性。进而采用该方法评定应变天平经动态补偿后能够满足飞行器舱门风洞动态试验的要求，表明该方法可用于确定传感器动态补偿后是否适用于动态试验。
As the measuring noise is the main factor that affects the dynamic compensation effect of sensor, and the ideal compensation effect of sensor within noisy environment is studied. The method to determine the ideal frequency bandwidth of the sensor after dynamic compensation according to measurement noise is proposed, as well as the method to determine the ideal value of time-domain performance index including adjusting time and overshoot through the ideal frequency bandwidth. The proposed method is applied to the dynamic calibration experiment of the strain gauge balance, its effectiveness is verified. Finally, the method is used to assess that the strain gauge balance after dynamic compensation could meet the requirements of the wind tunnel test of the aircraft. That shows the method could be used to determine whether the sensor after dynamic compensation is suitable for the dynamic test.
出处
《计量学报》
CSCD
北大核心
2015年第3期273-278,共6页
Acta Metrologica Sinica
关键词
计量学
测量噪声
动态补偿
应变天平
Metrology
Measurement noise
Dynamic compensation
Strain gauge balance
