Envelope-to: dave@picks.force9.co.uk Delivery-date: Mon, 14 Nov 2005 16:29:45 +0000 Received: by ptb-mxcore02.plus.net with spam-scanned (PlusNet MXCore v2.00) id 1EbhDE-0006lt-2z for dave@picks.force9.co.uk; Mon, 14 Nov 2005 16:29:45 +0000 Received: from post.thorcom.com ([193.82.116.20]) by ptb-mxcore02.plus.net with esmtp (PlusNet MXCore v2.00) id 1EbhDD-0006lP-Su for dave@picks.force9.co.uk; Mon, 14 Nov 2005 16:29:43 +0000 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1EbhCv-0006Jp-Oz for rs_out_1@blacksheep.org; Mon, 14 Nov 2005 16:29:25 +0000 Received: from [193.82.116.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1EbhCv-0006Jg-Cw for rsgb_lf_group@blacksheep.org; Mon, 14 Nov 2005 16:29:25 +0000 Received: from mail.gmx.net ([213.165.64.20]) by relay1.thorcom.net with smtp (Exim 4.51) id 1Ebi3B-00073t-SW for rsgb_lf_group@blacksheep.org; Mon, 14 Nov 2005 17:23:27 +0000 Received: (qmail invoked by alias); 14 Nov 2005 16:29:18 -0000 Received: from p54907468.dip.t-dialin.net (EHLO router) [84.144.116.104] by mail.gmx.net (mp018) with SMTP; 14 Nov 2005 17:29:18 +0100 X-Authenticated: #9373712 Message-ID: <000a01c5e938$ec8c8680$0400a8c0@router> From: "Uwe Wensauer" To: rsgb_lf_group@blacksheep.org Date: Mon, 14 Nov 2005 17:31:48 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Y-GMX-Trusted: 0 Subject: LF: How measuring Ground conductivity ? Content-Type: text/html; charset=windows-1252 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false X-PN-SpamFiltered: by PlusNet MXCore (v2.00) Content-transfer-encoding: 8bit

To discuss

Measure ground conductivity.

I placed two stainless- steel rods ( 3mm dia ) whithin a distance of 7 Meters apart abt 80cm deep into soil

Powered with 50 Hz.

In series with the electrodes is a 10 Ohm resistor. In order to measuring current, I measure the voltage drop across resistor.

Depending on weather I got 8 Ohm / m = 125mS

Is this measurement setup ( proceeding ) correct ?

Please correct me.

Uwe, DK1KQ