Electronic magnetic compass for ships or aircraft - uses magnetometer probes with corresp. angular and current phase displacements

摘要

An electronic magnetic compass for course indication or control in marine or aircraft consists of a compass sensor contg. two or more crossed measurement probes (PL1, PL2) and an evaluation unit. It provides electronic course information in a simple direct manner. Magnetometer probes and evaluation circuits are used after the direct time coding principle. The sensor outputs are processed to form an alternating voltage whose phase sift w.r.T. a reference signal corresp. to the course. The phase between the probe premagnetising currents corresp. to the angular probe displacement.