[Amps] Alpha vs Henry

[Patrick Barthelow]

This is an interesting one... can someone point their IR thermometer gun at a room temp object and then take a hair dryer on hot,
and blow it across the field of view, and report results?  Tnx
Best Regards,   Pat Barthelow  AA6EG

    
> Date: Fri, 8 Apr 2011 17:20:01 -0400
> From: sub1 at rogerhalstead.com
> To: amps at contesting.com
> Subject: Re: [Amps] Alpha vs Henry
> 
> On 4/8/2011 12:35 PM, Ron Youvan wrote:
> > Gary Schafer wrote:
> >
> >> With IR how do you know if you are measuring actual tube envelope glass/seal
> >> temp or the radiated heat itself?
> >    I'm pretty sure IR is radiated from objects and hot air is not an
> > object.  IR thermometer's accuracy is independent to of ambient air
> > temperature.
> 
> Air is an object, just one that is difficult to hold in your hand. IR 
> guns (and cameras) are used to measure air temp.
> 
> 73
> 
> Roger (K8RI)
> 
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