Home
Products
Experiments
Resource Sites
 
   
       
 
Light Detection  


Procedure:

We will assemble the light sensor circuit on the circuit trainer.

  Materials / Main Page

 


Step 1:

  • Study the schematic diagram to determine how the parts are hooked together.
  • Refer to the materials pop up window to see the different components.


Experiment Schematic Diagram

 

Step 2:

  • Hook up the components on the circuit trainer.
  • Set the power supply to +9V DC.

Experiment Procedure

 

Step 3:

  • Plug in the circuit trainer and set the pontentiometer until the photoelectric cell reacts to the movement of your hand.
  • When the photoelectric cell is exposed to light, the LED should light, when you cover it with your hand, the LED should go out.
  • If you reverse pins 2 and 3 of the LM324, the light will go on when it is dark and go out when exposed to light.
 
 
P.O. Box 459, Huntsville, Utah 84317-9724
Copyright 2004-2005 Orchid Educational Enterprises Inc.All rights reserved