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[TowerTalk] LOOS gauge ramblings

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Subject: [TowerTalk] LOOS gauge ramblings
From: (Stan or Patricia Griffiths)
Date: Wed, 14 Mar 2001 00:36:29 -0800
You know, there is a fairly easy way to test all of this and find out the
real answers.  Remember how you could see if your Loos Tension device was
reading correctly, right in your garage?  You hang a piece of guy wire
vertically from the rafters.  You then load it with a known amount of
weight like a five gallon bucket of pieces of steel you have weighed on
another scale.  You then test the tension in this vertical "guy wire" with
your Loos gauge and see if it reads correctly.  If you want to know the
effect of two closely spaced guy grips, you just re-rig the vertical guy
wire with closely spaced grips and measure it again with the same weight
loading it and see if you get a different answer.  I would do all of this
for you but I don't own a Loos gauge . . .


alsopb wrote:

> I started thinking more about the question I had posed about the LOOS
> tension gauge being used to measure tension on a small piece of EHS
> attached to phylistrand.
> Here's a thought experiment I proposed.  It was what got me thinking
> about how accurate the LOOS gauge is on a short section of EHS flanked
> by big grips.
> The length of the EHS section is just equal to the length between the
> Loose attach point and the readout scale.  Big grips on either side.
> In this case, it would seem to be that it would take quite a bit more
> downward force to obtain the same deflection one would get for a long
> piece of the same EHS.  If the two ends of the EHS were physically
> clamped in a vice, I'm sure it would take a MUCH larger downward
> force.  Does the presence of husky big grips partially simulate these
> vices.
> I'm beginning to think that one needs a section at least twice the
> length of the gauge to get a meaningful result.
> If the above is not true, I'd really like to have some technically
> savvy person explain to me how the gauge really does work correctly in
> these cases.
> de Brian/K3KO
> --
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