![](slide0024_image095.png)
![](slide0024_image096.png)
![](slide0024_image097.png)
face
of sensor should
be
1/8Ó back from
end
of straw
Check that leads
are not shorted
inside straw.
Note: The sensor
should be tested by connecting to computer and checking voltage in light and with sensor face covered with your
finger.
Detail of Sensor
(CdS Photoresistor)
Straw covered
with electrical tape
foam plug