Fluxgate Magnetometer Earth Field Sensor very simple gaussmeter

This video clip shows an extremely simple fluxgate design, ideal
for the hobbyist or thinkerer. It needs not more than 1minute to be
build, and the material needed is marginal. It is not so sensitive then
a professional Sensor and also has drawbacks in stability and
temperature sensitivity, but this is not a problem for the starting
experimenter.
Other simple magnetometer (gaussmeter) design have been already shown at YT
but the sensitivity is most worse. Hope you have fun with the simple
idea and get success by copy the simple and small sensor. ;)

[@halloalle2588]

Sorry, there was a mistake on the sketch. The bead is a standard one with 3.5mm diameter, not 5.6mm. ;)

[@halloalle2588]

By rotating the saturable reactor along its long axis, you can minimize crosstalk. The output then becomes bipolar as the field direction changes.

[@Дрон-м2я]

Сдравствуйте.Вы проводите интересные опыты,но вблизи осциллографа,измерения не корректны.В осциллографе,находится -блок питания.Вы понимаете о чем я вам говорю.

[@halloalle2588]

Добрый день. Я проверил это, поле исходит от земли, и влияние осциллографа незначительно. Чувствительность составляет 1Vpp при около 45uT. Удачи, создавая это. (Используется Google Translate)