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Tag Archives: compass
Flux-gate compass
A friend gave me an old transmitting compass. A Neco Marine NM3. It was long ago part of a ship’s autopilot. The construction is interesting. A flux-gate is very sensitive in measuring magnetic fields. But the earth magnetic field strength … Continue reading
Posted in Homebrew Projects, measurement projects
Tagged compass, flux-gate, fluxgate, neco marine, nm 3
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