PIRA: 3D40.30


 Lab Equipment  Directions
  1.  Pasco mechanical vibrator
  2. function generator
  3. square Chladni plate
  4. circular Chladni plate
  5. sand in shaker
  6. Chladni plate cover (plexiglas box)
  7. small wood block with brass rod and spring
  8. large food tray
  9. 2 BB leads
  1.  Connect a Chladni plate to the vibrator. Put the tray under the vibrator.
  2. Sprinkle sand on the top of the plate and cover with the plexiglas box.
  3. Turn on the function generator. Set the amplitude to about half scale.
  4. Slowly vary the frequency over the range from 100 Hz to 30 kHz and observe the resultant standing wave patterns.