PSN-L Email List Message

Subject: Re: Mass deflection weight test
From: "Geoff" gmvoeth@...........
Date: Thu, 1 Nov 2007 16:33:14 -0700

CRC handbook from the library or possibly arrl.

----- Original Message ----- 
From: "John Lahr" 
Sent: Thursday, November 01, 2007 12:49 PM
Subject: Re: Mass deflection weight test

> That's a good idea.  Is there a good wire table on line that can be used?
> John
> At 12:03 PM 11/1/2007, you wrote:
>>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.
>>Hi John,
>>     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.
>>     Regards,
>>     Chris
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