can we see through smoke in fire accident to extinguish fire ? because smoke drops the visibility to an extent that one cann not see and hinder the fire fighter.
I would have to look up the specifics but IR emitters that are used in CCTV applications work at a different wave lenght than the IR sensors used to view thermal gradients which are then processed to create a picture.
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thanks for reply but what wave length of IR can show through smoke? in which part is it used? i want to see just in a room of about 10 meter having fire, what would and from where i mean from which instrument can i take this to make my job?