杯式风速传感器现场校准方法

Field Calibration Method of Cup Wind Speed Sensors

针对目前业务上风速传感器现场校准方法存在的不足,通过改进气象部门广泛使用的杯式风速传感器现场校准设备,利用启动风速校验仪对风速传感器进行低风速段的校准,从而解决风速校验仪无法检测风速传感器整体性能的问题,实现了杯式风速传感器到实验室风洞标准的量值溯源。利用改进后的现场校准方法对风速传感器校准后,拟合出的线性回归方程与风洞检定结果进行比对发现,改进后的方法基本上能满足风速传感器现场校准的需要。

In view of the shortcomings of the field calibration method of wind speed sensors in service,this paper discusses the improvement of the calibration equipment of cup wind speed sensors widely used by meteorological departments,and uses the start-up wind speed calibrator to calibrate the wind speed sensors in low wind speed section,so as to solve the problem that the wind speed calibrator cannot detect the overall performance of wind speed sensors,and realizes the instrument traceability of cup wind speed sensors and reaches the laboratory wind tunnel standards.After calibrating the wind speed sensors with the improved field calibration method,the fitting linear regression equation is compared with the wind tunnel calibration results.It is found that the improved method can basically meet the needs of the field calibration of wind speed sensors.