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Re: [Phys-l] IR thermometer buy


On Jan 24, 2007, at 2:53 PM, Ludwik Kowalski wrote:



2) How are these thermometers used, in practice? The role of the laser
beam is not clear to me.
_______________________________________________________
Ludwik Kowalski, a retired physicist
5 Horizon Road, apt. 2702, Fort Lee, NJ, 07024, USA
Also an amateur journalist at http://blake.montclair.edu/~kowalskil/ cf/


I'll answer the easy one.

The laser is for aiming the sensor at the target. A convenience.


I too would be like to know the answer to the other. I thought it was the 'color' of the IR that determined the temp.


Scott