Electricity: measuring and testing – Magnetic – Magnetometers
Patent
1983-07-19
1987-01-06
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Magnetic
Magnetometers
324246, 33361, 340987, G01K 3304, G01C 1728
Patent
active
046349782
ABSTRACT:
A system for accurately measuring the direction in which a magnetometer is to be set has a simple construction and is little affected by iron structures on a hull. The system has a magnetometer which includes an excitation source, a magnetic core, an excitation AC winding and an output winding which are both wound around the magnetic core. The output winding is composed of two series connected coils which are wound around the magnetic core and have an equal number of turns. The measuring system applies an alternating current to the core having an amplitude large enough to saturate the magnetic core, and obtains an output from the output winding corresponding to the angle formed between the geomagnetic field direction and an imaginary line obtained by interconnecting the point of connection of the two coils and the central point of the magnetic core.
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Edmonds Warren S.
Eisenzopf Reinhard J.
Kabushiki Kaisha Saura Keiki Seisakusho
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