校罗差时磁偏差设定为零的机理分析

Principle Analysis of Setting Magnetic Deviation as 000.0 when Correcting Magnetic Deviation

在飞机地面通常检查时,磁差给定器磁偏差值往往设定为当地磁差,才能得到正确的航向。校正磁罗差时,只有将磁差给定器设定为000.0,不然罗差计算会大大溢出指标。文章通过磁罗差校正的原理和校正方法的论述,进一步分析了校罗差时将磁偏给定器设定为000.0的工作机理。

In checking airplanes on the ground, only if the figure of magnetic deviation setter is al- ways set as local magnetic variation can it find the correct course. When correcting magnetic deviation, the figure of magnetic deviation setter can only be set as 000. 0, or the calculated value of magnetic de- viation will far exceed the recommended level. By arguing the principle and method of Magnetic Devia- tion Compensation, the paper further analyzes the working principle of setting magnetic deviation as 000.0 in compass compensation.