Electromagnetic Field Measurement

There is enough material on the net to suggest that Pulsed Electromagnetic Therapy MAY just work to relieve arthritic pain.

I am not convinced enough to spend US$1200 or so for a commercially produced machine, but I believe it should be reasonably easy to build one. I am thinking a PICAXE driving a FET switching a 12V supply through a coil of around 45cm diameter.

The problem is how to calculate the number of turns and the current required through the coil to produce the required field strength ?

The strengths I have seen quoted are: 2.74 x 10(-7) to 3.4 x 10(-8) G. I presume the 'G' is for Gauss. I have also seen a figure of 25 Tesla.

I would also like to measure the produced field if at all possible, just to confirm that it is in the ballpark.

I will be grateful for any help with this.

TIA

Dave Goldfinch

Reply to
Dave Goldfinch
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Dave Goldfinch wrote in news: snipped-for-privacy@4ax.com:

Check this site for online calcs.

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These field strengths you quoted are tiny, will have close to no effect. Earths weak filed is ~0.5 G. 10000 G= 1 Tesla. I bet most of the stuff you looked up were scammers, not scientific.

Reply to
Geoff C

Geoff

Thanks for the link.

As you say, most of the stuff I read was snake -oil, but there were a few papers that described double blind tests that appeared genuine.

As long as it only costs my time + a few dollars for components I am happy to experiment - using myself as a guinea pig of course !

Dave

Reply to
Dave Goldfinch

Dave Goldfinch wrote in news: snipped-for-privacy@4ax.com:

G.

Tesla.

effect.

Dave

Tell us if it has any noticeable effect!

Reply to
Geoff C

It likely operates by a well researched principle called the placebo effect.

Cheers, Nicholas Sherlock

Reply to
Nicholas Sherlock

Yes, well it will be difficult for me to conduct a true double blind trial on myself BUT I am almost as sceptical as you appear to be, so we can but wait and see.

Hell ! even if it is only placebo I will be happy if it has SOME effect !

Dave

Reply to
Dave Goldfinch

Hi Dave, I reckon pulses at 2.45 GHz will work a treat on arthritis.

;)

Regards Mark

Reply to
Mark Harriss

frequency is not mentioned, or is the 200Hz pulses of 900MHz EMF from a mobile going to work

do mobile phone users have less joint problems than the rest?

Reply to
Ed /:-}

Yeah, presumably at about 2KW !! Do you prefer your knees rare or well done ?

Just for the record, the frequencies mentioned in the trials are generally below 10Hz.

Dave

Reply to
Dave Goldfinch

a pulse has very high freqs, you are only talking about the prf

Reply to
Ed /:-}

On Tue, 13 Sep 2005 21:10:00 +0800, Ed /:-} put finger to keyboard and composed:

going to work

No, if anything they appear to have *more* problems. In fact I notice that many of them no longer have the dexterity to operate the Shift key.

-- Franc Zabkar

Please remove one 'i' from my address when replying by email.

Reply to
Franc Zabkar

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