Return-Path: Received: (qmail 28103 invoked from network); 18 Jun 2001 10:46:05 -0000 Received: from unknown (HELO warrior-inbound.servers.plus.net) (212.159.14.227) by excalibur.plus.net with SMTP; 18 Jun 2001 10:46:05 -0000 Received: (qmail 19678 invoked from network); 18 Jun 2001 10:45:09 -0000 Content-Transfer-Encoding: 8bit Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by warrior with SMTP; 18 Jun 2001 10:45:09 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: from majordom by post.thorcom.com with local (Exim 3.16 #2) id 15BwQb-0006Zw-00 for rsgb_lf_group-outgoing@blacksheep.org; Mon, 18 Jun 2001 11:38:41 +0100 Received: from mail.cc.kuleuven.ac.be ([134.58.10.6]) by post.thorcom.com with esmtp (Exim 3.16 #2) id 15BwQW-0006Zq-00 for rsgb_lf_group@blacksheep.org; Mon, 18 Jun 2001 11:38:36 +0100 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from LCBD15.fys.kuleuven.ac.be (LCBD15.fys.kuleuven.ac.be [134.58.80.15]) by mail.cc.kuleuven.ac.be (8.9.3/8.9.0) with SMTP id MAA203752 for ; Mon, 18 Jun 2001 12:37:55 +0200 Message-ID: <3.0.1.16.20010618113819.1b7f36c6@mail.cc.kuleuven.ac.be> X-Sender: pb623250@mail.cc.kuleuven.ac.be X-Mailer: Windows Eudora Pro Version 3.0.1 (16) Date: Mon, 18 Jun 2001 11:38:19 To: rsgb_lf_group@blacksheep.org From: "Rik Strobbe" Subject: Re: LF: Magnetometer uses In-reply-to: <7D653C9C42F5D411A27C00508BF8803D55C4E9@pdw-mail-r1.dstl.go v.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii; format=flowed Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Andy, have a look at these sides for some homebuilt magnetometers : http://www.regulusastro.com/regulus/papers/magnetometer/index.html http://image.gsfc.nasa.gov/poetry/workbook/page9.html http://www.portup.com/~dfount/proton.htm http://www.astro.uni-bonn.de/~kbagschi/magnet-e.html maybe there is something usefull for you. 73, Rik ON7YD At 09:54 18/06/01 +0100, you wrote: >I have been given a small compass module that, apart from magnetic heading, >gives a serial digital high resolution output of X and Y components of the >Earths magnetic field. Added a simple PIC + S/W to give the outputs in text >formatted RS232 for connection to a PC. Whilst idly thinking of something >to do with this (apart from a remote compass on my antenna) I wondered >about a 2 axis magnetometer monitoring for solar storms etc. > >Does anyone on this reflector (Alan ?) know what sort of magnetic field >changes are a precursor to magnetic storms, and what sort of sampling >interval it is worth averaging over to automatically alert on these. I >could easily log X / Y data to disc at a regular interval, write an alerting >function etc etc. if there is any worthwhile research advantage in doing >so. Otherwise the module will be relegated to being used on 10GHz portable >operations, for aiming my dish remotely. > >Andy G4JNT > > > > >-- >The Information contained in this E-Mail and any subsequent correspondence >is private and is intended solely for the intended recipient(s). >For those other than the recipient any disclosure, copying, distribution, >or any action taken or omitted to be taken in reliance on such information is >prohibited and may be unlawful. > >Attachment Converted: "C:\EUDORA\ATTACH\LFMagnet.htm" >