Magnetically Damped Harmonic Motion

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.

Pira DCS # 3A50.20

Rotating Motion Sensor   Steel pole  
Pasco Computer Interface   Chaos Accessory Wheel (Aluminum Disk with Peg)  
Cenco Black Table Clamp