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hollowman
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Joined: May 28 2009 - 12:59pm
Laser infrared thermometer for test labs

In the FLAC vs. WAV thread, I noted that probing an ACTIVE (i.e., powered, in situ) topological component -- IC, opamp, etc -- may help quantify (measure) sonic/qualitative attributes that have tradit. had no metric analog.

On a few EE blogs and YouTube EE channels (e.g., EEV blog), laser infrared thermometers have been getting some attn. as they seem to offer some addit. benefits in labs tests. E.g., quick, hands-off analysis of component behavior.

So for the FLAC vs WAV test, labs may want to point the device at certain ICs and quickly asses running temps. Heat changes resistivity and other charac. of ckt traces and affect other thermodynamic aspects of material physics. 

Not sure ... maybe some audio designers are already way ahead of the game ;)

John Atkinson
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Joined: Nov 7 2010 - 3:31pm
Re: Infrared thermometers

hollowman wrote:
So for the FLAC vs WAV test, labs may want to point the device at certain ICs and quickly asses running temps. Heat changes resistivity and other charac. of ckt traces and affect other thermodynamic aspects of material physics.

I actually have a laser infrared thermometer that I use to measure amplifier heatsink temperatures, etc. I am not sure if the target area is small enough to examine individual IC temperatures, but I will try the idea out.

John Atkinson

Editor, Stereophile

hollowman
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Last seen: 1 week 6 days ago
Joined: May 28 2009 - 12:59pm
Radiation metrics and FLIR ...

For the same economy, a std. (non-IR, physical-contact) probe style unit is still more accurate. But that may cause grounding and electrostatic issues.

If a lab has deep pockets, investment in FLIR equipment may also be worthwhile....

http://www.youtube.com/user/FLIRThermography

http://www.youtube.com/watch?v=BsUrIjlibsw

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