A fluxgate magnetometer – a prestudy

Response (lower trace) of the toroidal fluxgate to a sine wave of about 7 V amplitude (upper trace, heavily distorted because of the limitations of the signal generator) in the presence of an external magnetic field..

Just a few days ago I read up about variations in the magnetic field of earth and how these can be used to detect northern lights. Since there have been sightings of northern lights quite recently even in major parts of Germany I became interested in the topic. A common type of magnetometer is based… Continue reading A fluxgate magnetometer – a prestudy