Driven Mechanical Resonance: Torsion Pendulum (Leybold)

PIRA 3A60.55 - Driven Mechanical Resonance: Torsion Pendulum (Leybold)

Instructions / Notes:

Oscillation system consists of a rotating wheel driven by motor driven rod via a spiral spring.
The natural frequency is approximately .5 Hz
Exciter frequency ranges from 0 to 1.3 Hz
Damping is possible by an electro-magnetic eddy-current brake. Hence, two power supplis are used.
This demonstration takes a couple of minutes to reach full resonance.
A stop-watch is available by special request.

Photos Show the Demo Apparatus Used at the University of Texas at Austin.