Hi friends!!!
Have you ever wondered how infrared thermometer works without body contact?
Let’s find out the answer.
WHY
INFRARED THERMOMETER?
The infrared thermometer are used to measure temperature
from a distance. It is used in circumstances where the object
is very fragile and dangerous to be near.
Image courtesy: Wikimedia Commons
Licensed under: CC Share Alike
WHAT KIND OF TECHNOLOGY IS
USED?
The infrared thermometer works based on a phenomenon
called black body radiation. Anything at a temperature above absolute zero has
molecules inside of it moving around.
If the temperature is high, the molecules moves
faster. While moving, the molecules emit infrared radiation. As they get hotter,
they even start to emit visible light.
Example: Heated
metal can glow red or even white.
Thus infrared thermometer detect and measure this
radiation.
HOW INFRARED THERMOMETER
WORKS?
The infrared thermometer use a lens to focus infrared
light from one object onto a detector called a thermopile. The thermopile
absorbs the infrared radiation and turns it into heat.
If the
infrared energy is more, thermopile gets hotter. This heat is turned into
electricity. The electricity is sent to a detector, which uses it to determine
the temperature of whatever the thermometer is pointed at.
Image courtesy: Wikimedia Commons
Licensed under: CC Share Alike
WHAT ARE THE TYPES OF
INFRARED THERMOMETERS?
Spot infrared thermometer: It measures the temperature at a spot on a
surface.
Infrared scanning systems: These
devices scan a larger area as the spot thermometer points at a rotating mirror.
Infrared thermal imaging cameras: These
cameras are used for measuring
temperature at many points over a relatively large area to create a
two-dimensional image called a thermo gram.
WHAT ARE THE IMPORTANT
FEATURES TO LOOK OUT?
Well features really differ for different brands. Let’s
look at the most basic features of
Measurement
range: -60 to 500°C.
Operating
range: 0 to 50°C.
Accuracy: ±1°C.
Response time: 1 Second
Distance: Spot: 12:1
Battery life: Between 140 to 180 hrs continuous use.
WHAT ARE THE OTHER USES?
Infrared thermometers can also be used as Ear
thermometers. The ear drum has about the same temperature as inside of the
body, but it is very sensitive. Touching the ear drum could damage it, so an infrared thermometer measures its temperature from an inch distance.
The infrared thermometer is also used by fire fighters to
detect hot spots where the fire is burning fiercely.
It can also be used in manufacturing to control the
damage of temperature sensitive electronic components.
Now I hope you
have acquired some knowledge about infrared thermometer. We will discuss
more about medical devices in future blogs.
Check out for this blog!!
DON’T FORGET TO FOLLOW THIS BLOG PAGE
DROP YOUR MAIL ID TO GET IMMEDIATE UPDATES
If you find this
blog post knowledgeable, comment & share it
with a friend!
Nice explanation 👌.....keep going
ReplyDeleteGood information
ReplyDeleteInformative
ReplyDeleteNicely explained
ReplyDelete