Xref: utzoo sci.electronics:8062 rec.ham-radio:13680 sci.astro:5363 sci.space:14310 Path: utzoo!attcan!uunet!wuarchive!gem.mps.ohio-state.edu!apple!mips!vaso From: vaso@mips.COM (Vaso Bovan) Newsgroups: sci.electronics,rec.ham-radio,sci.astro,sci.space Subject: Re: Trying to build a fluxgate magnetometer -- help! Summary: Modern unit is tesla Keywords: magnetometer fluxgate aurora solar geomagnetic field Message-ID: <28601@buckaroo.mips.COM> Date: 2 Oct 89 06:25:32 GMT References: <1914@sactoh0.UUCP> Reply-To: vaso@mips.COM (Vaso Bovan) Organization: MIPS Computer Systems, Sunnyvale, CA Lines: 12 In article <1914@sactoh0.UUCP> mahaun@sactoh0.UUCP (Mark A. Haun) writes: > >I am trying to build a fluxgate magnetometer sensitive enough to >monitor variations in the Earth's magnetic field, mostly to observe >magnetic storms caused by big flares on the sun (March 13, 1989 >stuff especially :-) !). > >I would like to measure changes at least as small as >10 gammas (.001 Gauss), and if possible, even smaller. > ? You mean of course, nanotesla (nT), since 1954. :-)