[SEL] My 2 cents worth

[Ed Stoller]

George,
It is the nature of magnets that they are made up of little chunks of 
magnets. The sensor is much smaller than the chunks so one gets a variety of 
numbers as you rome around the surface. To try to make some sense of it and 
have repeatability, I find the strongest spot and use that for the 
measurement.

Ed Stoller
New Fairfield, CT
http://home.earthlink.net/~edstoller/
----- Original Message ----- 
From: "Best, George" <George_Best at adp.com>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Friday, February 19, 2010 5:59 PM
Subject: Re: [SEL] My 2 cents worth


>I bought one of the testers years ago when Ed offered them.  I admit I'd 
>forgotten I even had it until Ed/Elden mentioned them in an earlier posting 
>this year.  Mine is sitting out in the shop someplace, I think I saw it a 
>few months ago.  When I first got it I used it a few times, but was mostly 
>a novelty item rather than anything I used.
>
> When I had a magneto charger handy, it was quick and simple to recharge a 
> magneto if it was questionable.  Never did record the readings I got.
>
> Might have to find it again and test some of my magnetos and see what sort 
> of numbers I get.  Of course if the numbers vary a lot for each point 
> tested it may not be of much value.  Might have to pick the same spot on 
> each magnet and just use the numbers for that location.
>
> Don't hold your breath waiting for me to post results as it might be 
> awhile.
>
> George
>
> Ps. Will be quicker than Arnie ;-)
>
> -----Original Message-----
> From: sel-bounces at lists.stationary-engine.com 
> [mailto:sel-bounces at lists.stationary-engine.com] On Behalf Of Ed Stoller
> Sent: Friday, February 19, 2010 2:23 PM
> To: The SEL email discussion list
> Subject: Re: [SEL] My 2 cents worth
>
> I am a little late here, just back from a trip.
>
> The kits ( about 15 of them) I distributed look like those in the earlier
> link, http://www.coolmagnetman.com/magmeter.htm , but made with a PC 
> board.
> I do have a bag of some less sensitive sensors as I found the ones we used
> too sensitive. The most recent use of mine was for mapping the ignition
> trigger magnets on an Onan engine.
>
> The original idea of measuring magneto magnets was a bust as those 
> charging
> the magnets would stick them to an iron beam, pull them off and know if 
> the
> magnet was charged or not. I think we might look at the idea of measuring
> the magnetism of the magnets when still installed in a magneto so we would
> not have to disturb the magnets that were good.
>
> Ed Stoller
> New Fairfield, CT
> http://home.earthlink.net/~edstoller/
>
>
>
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