how does the laser thermometer measure how hot/cold something is, by just shining on it with a few rays of laserlight?
In: Technology
It has nothing to do with the laser, that is just an indicator to see where it is pointed. Instead the temperature is measured by gauging the frequency of infrared light the object emits, as that directly relates to the temperature of the object. If it gets hot enough the frequency actually raises into the visible spectrum which is why very hot things will start to glow.
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