Testing for Resonant Frequency

[nath88nael]

I need to design an experiment to find the resonant frequency of porcelain.

i'd appreciate any suggstions.

 

(or the answer; i don't need to design the experiment if someone has the answer)

[Cap'n Refsmmat]

Porcelain does not have a single resonant frequency; different objects made of porcelain will have different resonances, and may actually have multiple resonances.

 

A simple test is to place a microphone next to the object and tap it with a small mallet. You'll see the resonant frequencies in the recording of the "thonk" noise as the object vibrates after it's been hit.

[nath88nael]

thank you

[swansont]

Alternately you can subject it to different frequencies and see which ones are attenuated or not.

 

A simple test is to place a microphone next to the object and tap it with a small mallet. You'll see the resonant frequencies in the recording of the "thonk" noise as the object vibrates after it's been hit.

Here's a cool example, but without the analysis part

 

http://www.youtube.com/watch?v=erz-9f4M9B4