东营风传感器防冻改造运行评估

Operation evaluation of anti-freezing transformation of Dongying wind sensor

在气象观测工作中,风向风速传感器冬季冻结故障较为常见,尤其是在雨雪天气之后,机械式风速风向传感器轴承容易结冰,无法正常转动,这会使得所测风速较实际值小或为0,风向变化迟缓或停止在一个方向上,严重影响气象观测记录,加之风向风速传感器一般安装在风塔和风杆上,风向风速传感器冻结故障难以处理,所以对风传感器进行防冻改造具有非常重要的意义。文章统计了自动气象站风传感器冻结情况,并对风传感器防冻改造效果进行了评估分析。

In the meteorological observation work,the freezing fault of the wind direction and wind speed sensor is common in winter.Especially after the rain and snow weather,the bearing of the mechanical wind speed and wind direction sensor is easy to freeze and cannot rotate normally.This will make the measured wind speed smaller or 0 than the actual value,and the wind direction changes slowly or stops in one direction,which seriously affects the meteorological observation record.In addition,the wind direction and wind speed sensor is generally installed on the wind tower and the wind pole,and the freezing fault of the wind direction and wind speed sensor is difficult to deal with.Therefore,it is of great significance to carry out anti-freezing transformation of the wind sensor.The freezing condition of wind sensor in automatic weather station is analyzed and the effect of anti-freezing modification of wind sensor is evaluated.