ホール素子を用いた3軸固定型電子コンパスの試作

概要

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There are some direction sensors of ship's heading or bearing besides magnetic compass and gyro compass, and it is necessary that those sensors are compact and have electric output. This paper describes the construction and performance of a newly designed electronic magnetic compass utilizing hall elements. The hall elements were equipped with perm-alloy rods in order to enhance the weak earth's magnetic flux density The outputs from two clinometer set in the roll and pitch axes consisted of a pendulum and a low torque potentiometer work to eliminate the influence of ship's rolling and pitching. The outputs of the magnetic sensors and clinometers processed by an A/D converter indicate the ship's heading immediately with the aid of a personal computer. Both laboratory and field test on a small boat showed a good indication of ship's heading with errors of less than 1 degree in the usual condition of ship's rolling and pitching. This will contribute to the remote indication of the ship's heading and input of the heading towards other navigational instruments of small boats or other vehicles.
社団法人日本航海学会の論文
1989-03-20