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Zwilrich
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Re: Part V: Advanced Sensors in Precision Manufacturing Applications
Zwilrich   2/17/2012 2:17:44 PM
NO RATINGS
how acurate are the non contact thermometers ?

A wrong setting of emissivity gives you a wrong value for temperature.  Cheap systems assume an emissivity of 0.95.  Better systems let you set the emissivity.  One trick is to put a spot of paint on the surface you are measuring.  Most organic materials have an emissivity close to 1.




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