Gyroscopy and Navigation
D.G. Gryazin, T.V. Paderina. Magnetic Compass with Dynamic Error Correction System
The paper studies the operation results for a magnetic compass (MC) with a system for correcting dynamic errors. We estimate the efficiency of the correction system in reducing MC errors occurring under the ship rolling and pitching motion and conditioned by the ship’s redistributed magnetic forces (heeling deviation) and translational accelerations for the compass installed at some distance from the ship’s oscillation center. The paper analyzes the disturbing forces acting on the MC during rolling and pitching and leading to its errors. The considered correction system implemented in the MC Azimuth KM-05D is based on a complementary filter and uses a MEMS gyroscope (MMG). The results from bench and field tests of the magnetic compass are presented, which confirm the efficiency of the correction system.
Keywords: magnetic compass, heeling deviation, translational accelerations, MEMS gyroscope, complementary filter.
| About authors |
D.G. Gryazin Concern CSRI Elektropribor, JSC, ITMO University, St. Petersburg, Russia T.V. Paderina Concern CSRI Elektropribor, JSC, St. Petersburg, Russia |
Gryazin D.G. and Paderina T.V. Magnetic Compass with Dynamic Error Correction System / Gyroscopy and Navigation, 2024, Vol. 15, No.2, pp. 86-97.
