针对喷管摆动试验中压差传感器输出数据处理较复杂,导致摆动力矩计算不准确的问题,开展了压差传感器原位校准技术研究,并采用最小二乘法对校准数据进行处理,修正了压差传感器输出数据的处理公式,提高了喷管摆动力矩计算精度.阐述了压差传感器原位校准方法及最小二乘法在压差传感器校准中的应用,与原有公式计算结果相比,校准后压差传感器输出数据计算精度提高了56.88%.%Considering the swing moment calculation inaccuracy due to the complex data processing of differential pressure sensor in nozzle swing test,the in-situ calibration technique of differential pressure sensor is studied.The least square method is used for the processing of calibration data,the processing formula of sensor output data is modified,and the accuracy of nozzle swing torque is improved.The paper describes the method of in-situ calibration of a differential pressure sensor as well as the application of least square method in calibration.As compared with the previous calculated result,the calculation accuracy of the differential pressure sensor output data after calibration is improved by 56.88%.
展开▼
