Driven Damped Harmonic Oscillations Experiment

Product Code: EX-5522A


In this experiment, the resonance of a driven damped harmonic oscillator is examined by plotting the oscillation amplitude vs. frequency for various amounts of damping.

The oscillator consists of an aluminum disk with a pulley connected to two springs by a string. The angular positions and velocities of the disk and the driver are recorded as a function of time using two Rotary Motion Sensors. The amplitude of the oscillation is plotted vs. the driving frequency for different amounts of magnetic damping. Increased damping is provided by moving an adjustable magnet closer to the aluminum disk.

PASCO Advantage: The combination of PASCO Capstone software and the 850 Universal Interface has the power to sweep through the driver frequencies and the capability to plot the amplitude vs. the driver frequency in real time.


  • Resonance curves for an oscillator: amplitude vs. frequency
  • Resonant frequency
  • Period of a pendulum
  • Effect of magnetic damping on shape of resonance curve
  • Phase difference between oscillator and driver at low, resonant, and high frequencies


What’s Included

Software Required

This product requires PASCO software for data collection and analysis. We recommend the following option(s). For more information on which is right for your classroom, see our Software Comparison: SPARKvue vs. Capstone »

Interface Required

This product requires a PASCO Interface to connect to your computer or device. We recommend the following option(s). For a breakdown of features, capabilities, and additional options, see our Interface Comparison Guide »

Required Accessories

Support Documents

Manual Downloads

Product Manuals for the Included Products

Large Rod Base Manual (ME-8735)
(46 KB – .pdf – English)
Mechanical Oscillator-Driver Manual (ME-8750)
(139 KB – .pdf – English)
Rotary Motion Sensor Manual PS-2120A
(1.1 MB – .pdf – English)
Experiment File
EX-5522 Driven Damped Harmonic
(9.6 MB – .zip – English)