Under What Conditions Does The Magnetic Compass Need To Be Corrected
Jul 11, 2020| Magnetic compass is an instrument which guides the ship's direction with the earth's magnetic field as its guide. Its accuracy mainly comes from its sensitivity to the magnetic field.
But in some cases, the interference of external force will affect the accuracy of the magnetic compass more or less. At this time, it is necessary to correct the magnetic compass to maintain good accuracy and normal guidance.
Under normal circumstances, after a period of navigation, the ship should be maintained. Whether it is overhaul or minor repair, it has a certain impact on the magnetic compass.
Therefore, after the ship is repaired, the magnetic compass must be corrected.
When a ship is sailing, it will inevitably be disturbed by external forces from the sea, such as collision, turbulence, etc.
In these cases, due to the strong vibration, the magnetic compass will inevitably be affected by external forces and produce certain deviation. Therefore, after each voyage for a period of time, the magnetic compass must be corrected.