PASCO WA-9857, Instruction Manual

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Model No. WA-9857 String Vibrator
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String Vibrator
Model No. WA-9857
The demonstrations and experiments described in this manual call for additional equipment. For details,
see the equipment list for each activity.
Introduction
The PASCO scientific WA-9857 String Vibrator drives a string or elastic cord to produce a
standing wave. With it, you can study frequency, wavelength, and resonance, as well as the factors
that affect those properties. It is well-suited for classroom demonstrations and hands-on
experiments.
The String Vibrator uses a coil-and-magnet design to vibrate a stainless steel blade, to which you
attach a string or elastic cord. The driving signal and power come from the included power
supply, or (for a variable signal) from an optional signal generator, such as the WA-9867 Sine
Wave Generator.
Included Equipment Replacement Part Number
String Vibrator
WA-9857
Power Supply 540-050
Wave Cord (3 meters, not pictured)
SE-9409 (90 m roll)
Power Supply
String Vibrator