Rod Fabrication magnetometer for FGM-3 sensors

[Ethno]

https://youtu.be/KwFPVKgZh3M

[kt315]

good. schematic of FGM-3 sensor?

[Ethno]

[bernte_one]

this is something similar
http://www.geotech1.com/forums/showt...ght=assembling

if you mount all in a telescopic rod you can Change sens of that sensor in field (if you use differential method)