Hioki 3415-01, Instruction Manual, Page: 48 / 79

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Chapter 1 Summary
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Chapter 1
Summary
1.1 Product Summary
1. Theory of M eas u remen t
Every object emit s infrared energy in
accordance with its t emp er atu r e. By
measu ri ng t h e amo u n t of this r ad i an t energy,
it is possible to determine t h e t emp er at u r e of
t h e emitting object.
2. About infrared
Infrared radiation is a form of light
(electromagnetic radiation), an d h a s t h e
property t h a t it passes easily throu gh air,
while it is easily absorbed by solid mat t er .
With a n emission t h er mometer which
operates by detecting infrared radiation,
accurate meas u r eme n t is possible,
irrespective of t h e air t emp er at u r e or t h e
measu r eme n t distance.
3. Emission Ther mometer S tr uctu re
Infrared radiation which h a s been emitt ed
from t h e object is focused upon a n infrared
radiation sensor, via a n optical s yst em which
includes a lens which is t r a n s p ar en t to