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This
experiment uses the computer/multimedia system to measure the motion of
a magnetically damped harmonic oscillator. A solid aluminum disk with a
brass peg mounted on it a one edge is set into oscillation. The disk is
attached to a rotational sensor that can measure the angular position,
velocity and acceleration of the rotating disc as it oscillates. A powerful
magnet can be adjusted close to the aluminum disc to vary the damping of
the oscillation due to eddy current forces. A real time graph of the oscillation's
Position vs Time can be plotted for the students to view damped harmonic
motion.
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