There is true north, magnetic north, magnetic inclination, magnetic deviation….

There is true north, magnetic north, magnetic inclination, magnetic deviation….

In addition, a more straightforward left or right deviation from an initial bearing can be determined.

The compass is provided with deviation compensation by a closed loop system including measurement of the sensor (10) output signals and an offset current strap (18) for nullifying the vehicle deviation field.

Committee on Prices for Intra-European Air Services (European Civil Aviation Conference)

A ship's compass must be corrected for errors, called compass deviation, caused by iron and steel in its structure and equipment.

At sea, a ship's compass must also be corrected for errors, called deviation, caused by iron and steel in its structure and equipment.

At sea, a ship's compass must also be corrected for errors, called compass deviation, caused by iron and steel in its structure and equipment.

A deflection circuit generates a deflection current (If) through a deflection coil (Lf).

Accounting magnetic compass deviation for the third group of conditions is carried out according to the rules adopted for the second group.

In 1819 Barlow began work on the problem of deviation in ship compasses caused by the presence of iron in the hull.

In 1819 Barlow became interested in the compass deviation caused by the iron in ships.

In 1819, Barlow began work on the problem of deviation in ship compasses caused by the presence of iron in the hull.

The deflection mechanism may include a deflection body and a pull wire coupled to the deflection body.

The flow deflector piece forms a circumferential flow-deflecting channel.