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Ruian Shunfeng Navigation Instruments Co.,Ltd

Add: No.20, Heping Road, Jinhu Street, Ruian, Zhejiang, China
Con: april Zhang
Tel: +86-577-65520898
Fax: +86-577-65966926
Mob: +8618158321811
Email: sale@rashunfeng.cn


Classification And Inspection Of Marine Magnetic Compass

 Classification of marine magnetic compass

1, according to the use and installation position:

1) standard Compass: opencast top deck, small influence of ship magnetism and good vision.

The dial and baseline with the aid of a refracting system or a projection device

It is reflected to the driver's desk for the steering.

2) the steering wheel: the steering wheel is straight ahead, and the rudder is used.

3) emergency Compass: the emergency rudder is supplied before the ship's tail emergency (Tai Ping) rudder.

4) boat Compass: a lifeboat, a small lamp, lamp oil reserves of 10 hours.

2, according to the compass diameter:

There are three kinds of 190 mm, 165 mm and 130 mm.

3, according to the classification of liquid: 1) liquid compass; 2) dry compass

Two, the inspection of the sensitivity of the magnetic compass of Marine Magnetic Compass: check by the method of measuring the stagnation angle. 


The methods of inspection are as follows:

1 conditions: Ship fixed on the dock, ship shore machinery does not work and little deviation;

2. Accurately record the course value;

3, use small magnets or iron to move the compass to the left (right) after 20-30.

4. After the balance of the compass, the difference between the course readings and the original heading values should be less than 0.20.

5, do the same check in the right (left) direction.