Piezo Buzzers (discs) as Antennae

[Bob Stern]

Can anyone please provide references on the use of factory-made piezo
discs, either singly or in array, as an "antenna"? I refer not to
buzzers with built-in circuitry, but the bare discs available in
diameters up to around 50mm.

What would be the frequency range? Is this wholely dependent on the
resonant frequency of the disc?

I am aware they contain a fairly exotic Titanate dielectric of the
type used in underwater communications. I imagine they must have other
interesting applications for the experimenter.

Bob Stern

 

[pimpom]

You keep putting "antenna" in quotes -- are you trying to
receive
vibrations in the air, the water, or the aether?

I wondered about that too - whether the OP is thinking of using
them as electro-mechanical transducers.

 

[JosephKK]

Sigh. I've got "antenna" locked in with EM from another thread in
sci.physics.

Sure, that use of piezos as "antennas" is all over the web these
days.

Duh.


Mark L. Fergerson

From the get go i thought OP was looking for something like the Sparkfun SE-00639.