Oscillations and Waves > Oscillations > Nonlinear Systems DCS# 3A95.70

PARAMETRIC OSCILLATOR

 parrametric oscillator

APPARATUS
parametric oscillator 101-02-C2
DC power supply 202-08-D
 
DESCRIPTION
The adjustable speed motor periodically changes the length of the pendulum.  Resonance occurs when the driver frequency is twice the natural frequency of the pendulum.

NOTES

        This can be set up as an interactive display using the modified DC power supply.

REFERENCE
AJP 50(6),561