The discussion centers on the use of an audio oscillator and power amplifier to effectively drive a vibration generator for constructing a Chladni plate. Users noted that standard oscilloscopes do not generate signals but rather analyze them, making them unsuitable as signal sources. A powerful audio oscillator is necessary to achieve adequate displacement at sub-audio frequencies, with a recommendation for a minimum of 2 watts of audio power. Additionally, a DIY low-frequency vibration generator can be created using a model electric motor and a variable voltage power supply for cost-effective experimentation.
PREREQUISITESThis discussion is beneficial for hobbyists, engineers, and educators interested in building Chladni plates, as well as anyone looking to understand the integration of audio oscillators and power amplifiers in vibration generation projects.
A normal oscilloscope doesn't produce signals. It analyses them. A suitable audio oscillator needs to be fairly powerful to get a decent displacement of that transducer at sub-audio frequencies. The type of oscillator needs to have a suitable frequency range so it needs to be like the one mentioned on the link. A general purpose audio oscillator may not do the job so be careful of the spec of anything you may need to buy second hand.arosinblum said:It seems the oscilloscope is not giving me a signal strong enough to drive the generator.