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latecomer
Joined: 06 Jun 2001
Posts: 77
Helped: 2
Location: USA
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 26 Jul 2004 17:43 Digital Earth Resistance Tester ? |
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Hello all,
Anyone designed a digital earth resistance tester using PIC controller ???
Can someone point me the right direction on this issue ?
Thanks in advance.
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flatulent
Joined: 19 Jul 2002
Posts: 4877
Helped: 324
Location: Middle Earth
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26 Jul 2004 18:00 Re: Digital Earth Resistance Tester ? |
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| One thing to keep in mind on the analog portion is to use a high voltage AC signal at a frequency that is not related to the mains frequency. Also it is best to use the four point method of connecting to the earth.
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Highlander
Joined: 21 May 2001
Posts: 51
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28 Jul 2004 9:59 Re: Digital Earth Resistance Tester ? |
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Hi,
Look in EPE magazine April and may issue 2003. How mentioned flatulent you need high voltage AC but EPE resistivity logger use 5 v.
Best,
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28 Jul 2004 9:59 Ads |
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flatulent
Joined: 19 Jul 2002
Posts: 4877
Helped: 324
Location: Middle Earth
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28 Jul 2004 14:35 Re: Digital Earth Resistance Tester ? |
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| In the old days there were instruments for this with a hand crank HT generator. They would not have had this extra expense to the product if there were no situations where it was needed.
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