PSN-L Email List Message
Subject: Re: Mass deflection weight test
From: Mark Robinson mark.robinson@...............
Date: Fri, 02 Nov 2007 13:34:18 +1300
> In a message dated 01/11/2007, johnjan@........ writes:
> There are two issues involved. One is the absolute deflection due to
> adding a weight and the other is the electronic response, once some
> motion sensor has been applied.
> I find it easier to cut a measured length of Copper wire and bend it
> so that it gives a three point contact - a small U loop and a larger U
> loop at right angles to it. You can look up the weight either in wire
> tables or by the diameter for that gauge and the density of Copper.
Pharmacists usually have a good accurate scale and will weigh things for me if
I provide them with some conversation which goes beyond their daily fare of
pills and potions.
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