T
The Flavored Coffee Guy
- Jan 1, 1970
- 0
Have you ever made a wine glass or crystal sing by wetting your finger?
Would you believe that when you hit the resonant frequency of a tuning
fork, wine glass, or even a plain old drinking glass that is made of
glass, a very small signal, not even audiable, at the resonant
frequency of the glass can be very loud. But, there is a trick too it.
Either the very center of the piezoelectric coin speaker has to be in
contact with the rim of the glass, or the very outer most edge. When
you pull the speaker away, it is quite. But, when that thing has
contact, it is ear piercing.
It almost makes me think that if piezoelectric elements were used, and
formed into bells, that you could use the mechanical resonant frequency
of the object, using mathcad, or some other form of simulation software
find the standing wave in the shaped piezoelectric ceramic, and use
it's resonant frequency to generate more power than you were using.
Would you believe that when you hit the resonant frequency of a tuning
fork, wine glass, or even a plain old drinking glass that is made of
glass, a very small signal, not even audiable, at the resonant
frequency of the glass can be very loud. But, there is a trick too it.
Either the very center of the piezoelectric coin speaker has to be in
contact with the rim of the glass, or the very outer most edge. When
you pull the speaker away, it is quite. But, when that thing has
contact, it is ear piercing.
It almost makes me think that if piezoelectric elements were used, and
formed into bells, that you could use the mechanical resonant frequency
of the object, using mathcad, or some other form of simulation software
find the standing wave in the shaped piezoelectric ceramic, and use
it's resonant frequency to generate more power than you were using.