正弦力法动态力传感器灵敏度不确定度评定

Uncertainty Evaluation of Dynamic Force Sensor Sensitivity by Sinusoidal Force Method

随着汽车技术的日益发展,动态力传感器在汽车NVH、模态试验中用到的越来越多,一般采用动态法校准。本文依据振动与冲击传感器校准方法,以标准振动传感器为标准器,采用正弦力法校准动态力传感器灵敏度,并计算动态力传感器灵敏度测量值的不确定度,确保量准的准确一致和正确传递。

With the development of automotive technology,dynamic force sensors are used more and more in vehicle NVH and modal tests,and dynamic calibration is generally adopted.Based on the calibration method of vibration and impact sensor,the sensitivity of dynamic force sensor is calibrated by sinusoidal force method with standard vibration sensor as standard,and the uncertainty of the measured value of dynamic force sensor sensitivity is calculated to ensure the accuracy,consistency and correct transmission of the measurement accuracy.