PASCO OS-8542 BLACK BODY LIGHT SOURCE User Manual
Page 10
Black Body Instruction Manual
012-07105B
6
4. Replace the Light Sensor with the Infrared Sensor and
Infrared Filter
To observe infrared wavelengths, use the Infrared Sensor
instead of the High Sensitivity Light Sensor. The filter prevents
the infrared sensor from detecting objects in the room (such as
people’s hands), but still allows the sensor to detect hotter
objects (such as a light source).
a) To replace the High Sensitivity Light Sensor, rotate the
threaded post clockwise to loosen the attachment and
remove the light sensor.
b) Place the base of the filter bracket over the front hole of the
light sensor mount, such that the hole in the bracket base
aligns over the front hole on the mount and the front
hole of the light sensor arm.
c) Place the Infrared Light Sensor over the base of the
bracket. While holding the sensor in place with one
hand, use your other hand to insert the threaded
post from beneath the sensor. Rotate the post
until the sensor holds firmly in place against the
bracket and mount. The glass filter should fit snugly
against the sensor, with the bracket under the case
(Figure 8).
6. Mount the Black Body Light Source onto the Optics Track
Slide the black body light source onto the light end of the optics track. Place the light source as close as
possible to the collimating slits. For added stability, use the screw and nut to secure the black body light
source to the track (see Figure 8).
7. Connect the Power Supply to the Black Body Light Source
Use banana plugs to attach a power amplifier (used with a ScienceWorkshop interface) with signal
generator capacity.
Note: A D.C. power supply can be used if a power amplifier is not available. However, the power
amplifier is needed for displaying temperature and wavelength in DataStudio.
a) With the amplifier turned off, attach the banana plugs on the black and red cables from the CI-6502
Power Amplifier to the connectors on the back side of the black body light source.
b) Plug the DIN connector from the amplifier into analog channel C.
Figure 7: Replacing the light sensor
infrared filter
filter bracket
INFRARED SENSOR
CI-6628
5. Position the Collimating Slits and Lenses on the
Optics Track.
a) Place the collimating lens close to but not touching the degree plate.
b) Place the collimating slits exactly 10 cm from the collimating lens.
light sensor
CI-6604A
PASCO
scientific
HIGH SENSITIVITY
LIGHT SENSOR
Figure 8: Equipment Setup
black body
collimating slits
collimating lens
prism mount
focusing lens
aperture disk
light sensor arm
light sensor
mount
threaded post