IR Radiation Lab# 2:                                 I.M.S. SCIENCE                   Name(s): __________________________

                                                                                                       Period: ______ Date:`___________  SCORE:____   /  20
        CAUTION: DO NOT AIM AT EYES

Materials: IR hand held infrared heat detector, stop watch, regular room thermometer, calculators and graph paper.                     Room Air temperature= _____ F/ Celsius.  Floor temperature= ______ F/ Celsius.  Table temperature= ______ F/ Celsius. 

Objective(s): Students will use the IR infrared heat detector to measure various body temperatures.

Data sampling: Students will collect IR temperatures from the following parts of our anatomy and perform an analysis of the results.                                                                 

Record the results of both lab partners.

Analysis questions:

1. Compare and contrast results with your lab partner. How do they compare?
2. How does your results compare to other lab groups?
3. How does it compare to someone of your gender?
4. Can you postulate why there are differences and similarities

Graph the results of a least ten other students for two parameters of interest.
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______________________________________   ________________________________________

      0 1   2   3   4   5   6   7   8   9  10   0 1   2   3   4   5   6   7   8   9  10

The class mean is __________ degree Celsius.                   The class mean is __________ degree Celsius.
Standard deviation  is __________ degree Celsius.         Standard deviation  is __________ degree Celsius.   

 

Shortwave Energy: Reflective:

Band #             1                      2                      3                      4

False color image assigned color red:

Thermal IR Longer wavelength Energy – far Infared

All means the same energy emitted by the earth.- 10 micrometers

Black Body Radiation:

 wavelength peak = 3000 (2960) = 3000 = .5 micrometers (Yellow)

                                                                     TK                  6000

The Sun = .5 micrometers ( Yellow)

Hot more energy  - shorter wavelength/ energy     5C/ 9F so 0-32, 10-50, 20-68, 30-86…

Cold less energy  - longer wavelength/ energy

A bulb

So  3000 = .6 micrometers = 5000 K

       t

Earth’s Temp 288K

so 3000 =  10 micrometers  1 micrometer = 1 X10 –6 Meters

                               288

Fire (Candle) 600K

so 3000 =  5 micrometers 

                               600

              Sun                   reflected Solar                       fire       emissions from Earth

.1 .2 .3 .4 .5 .6 .7 .8 .9 1.0       2         3         4          5          6  7  8  9 10

The atmosphere window:          O3

100% emission                                     transmission      100% absorbed

                                                                        20 % absorbed

   8                                           10                                14

20 % greenhouse gases absorbed H2O, CH4, CF, CF2, NO2

Landsat Band 6 { 10.4 – 12.5 }greenhouse gases fill in.