PIRA 3B22.10 Standing Waves: Meldes String Vibrator
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Picture shows demonstration used at the University
of Texas at Austin
Instructions / Notes:
- A thin bungy cord is driven under tension to show a variety of standing waves.
- A digital frequency generator with a built-in amplifier drives a speaker coil, which vibrates the string.
- The control knob ranges from 15hz to 80 hz to produce 1,2,3 and 4 nodal points.
- An optional strobe light can be used to freeze perceived motion of the string.
Last Updated 9/20 - University of Texas at Austin Physics Department - All Rights Reserved.