There's an article in the may 2007 (issue 202) issue of circuit cellar on building a magnetometer that might be a good starting point.
Sent from my Banana jr (tm) Mobile Device On Apr 5, 2011, at 6:26 PM, Neville Michie <namic...@gmail.com> wrote: > Hi, > I am boxing up my LPRO rubidium source in a steel box. The device is to be > thermostated > by controlling a small fan outside the box to keep the LPRO at about 40*C. > Although the unit is in a mumetal box I assume there may be some penetration > of earths magnetic field. > The steel box should help that. > To test this I want to build a very stable magnetometer. Now I know that all > you need is a jar of water or kerosene > to give you protons, and a coil around the jar to kick the protons and then > listen to them sing. > I have also been told that these instruments do not work in a laboratory, as > the AC magnetic field > drives them crazy. > I am thinking of lock in amplifiers and phase locked loops. > Also toroidal coil or paired coils. > Can anyone in this group point me to an easy to construct and fiercely > accurate design to build? > > cheers, Neville Michie > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
