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Vinony

fluxgate

noun

  1. a device used to indicate the direction and intensity of the magnetic field (as on a planet)
L1500620 on Wikidata ↗

Wiktionary

noun

Etymology: From flux + gate.

  1. Any of several devices that use soft iron cores surrounded by coils of wire that generate a pattern of induced currents when it moves relative to an external magnetic field.