PASCO TD-8555 THERMAL RADIATION SYSTEM - Manual (Page 10)

6
Thermal Radiation System 012-04695D
Part 2
Use the Radiation Sensor to examine the relative magnitudes of the radiation emitted from
various objects around the room. On a separate sheet of paper, make a table summarizing your
observations. Make measurements that will help you to answer the questions listed below.
Absorption and Transmission of Thermal Radiation
① Place the Sensor approximately 5 cm from the black surface of the Radiation Cube and record
the reading. Place a piece of window glass between the Sensor and the bulb. Does window
glass effectively block thermal radiation?
② Remove the lid from the Radiation Cube (or use the Stefan-Boltzmann Lamp) and repeat the
measurements of step 1, but using the bare bulb instead of the black surface. Repeat with other
materials.
Radiation Rates from Different Surfaces
Data and Calculations
Therm. Res. Therm. Res.
Temperature
Therm. Res.
Temperature
Temperature
Therm. Res.
Temperature
Ω
°C
Ω
°C
Sensor
Reading
(mV)
Sensor
Reading
(mV)
Sensor
Reading
(mV)
Sensor
Reading
(mV)
Ω
°C
Ω
°C
Surface
Black
White
Polished
Aluminum
Dull
Aluminum
Surface
Black
White
Polished
Aluminum
Dull
Aluminum
Surface
Black
White
Polished
Aluminum
Dull
Aluminum
Surface
Black
White
Polished
Aluminum
Dull
Aluminum
Power Setting 5.0 Power Setting 6.5 Power Setting 8.0 Power Setting 10.0