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Re: [Amps] Alpha vs Henry

To: amps@contesting.com
Subject: Re: [Amps] Alpha vs Henry
From: Steve Thompson <g8gsq72@gmail.com>
Date: Sat, 09 Apr 2011 07:51:38 +0100
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Not necessarily the warmest - you have to allow for the emissivity 
of objects. I don't know a figure for air, but polished metal and 
glass can vary a lot - a dab of paint of white correction fluid 
provides a more reliable target (assuming your thermometer can 
target a small enough area).

Steve

> I think the generic IR thermometer/gun is going to respond to the warmest 
> temp 
> item in the lens field because that's going to be the 
> black body generating the most heat.  And that warmest source is going to be 
> the anode for ceramics looking down, or perhaps the 
> body adjacent the anode for something like a horizontal tube with a big anode 
> cooler on it.
> 
> 73, Jeff ACØC
> www.ac0c.com
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