[SEL] My 2 cents worth
Ed Stoller
edstoller at earthlink.net
Fri Feb 19 14:23:27 PST 2010
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/
----- Original Message -----
From: "William Young" <wmlyoung at yahoo.com>
To: "The SEL email discussion list" <sel at lists.stationary-engine.com>
Sent: Wednesday, February 10, 2010 9:51 AM
Subject: Re: [SEL] My 2 cents worth
TO: Jacob
From: Bill Young
RE; Gauss meter & "quantifier"
Reply to: jacob warner jacob.warner at pdahome.com>
Yours of December 3, 2009, 7:49 AM TO, SEL net
Elden, Have you collected any data on gauss measurements for different types
of
magnetos? Jacob
Jacob-san, I quite agree with Elden's comments and wish to add a couple of
my own.
(1) I wanted a gauss meter in the worst way. I imagined that I had a real
need for one because I was doing many EKs for the local lads, I could not
find a distributor in Japan.
(2) So I built my own gauss "quantifier."
(A) On the wall, I fashioned an EK holder.
(B) Just below the EK armature I mounted a hinged lever arm. But before
mounting, I made notches every inch and numbered them from 1 to 30 beginning
at the hinge.
(C) Then I made an "S" hook which
would connect the lever arm to armature.
(3) The last step was to fashion a one lb. weight which could be moved away
from the hinge in one inch increments. Thus my "quantifier" gave me an idea
of comparative magnetism in terms of inch pounds rather than Gauss.
(4) Years later a Japanese engine lad found a company in Tokyo that sold
Gauss meters -- not cheap. I was so happy with my purchase; I gaussed
everything. It was then that I became disillusioned. Put the probe on any
spot of any magnet; note the reading. Now, move the probe a quarter inch in
any direction. Guess what? Different reading.
(5) My current thinking is that my $2 "quantifier" was a more useful tool
than the expensive meter. I was getting an average reading of magnetic
strength rather than point to point readings.
Elden-san, Did you ever find your Gauss meter a useful instrument?
My greatest satisfaction? I was the only guy on the block with one. Also in
village and city, maybe even in the county. Comments please. Bill
( I am in Thailand now using yahoo address:
wmlyoung at yahoo.com )
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