resonance!

Nigel Goodwin said:

Yes, I don't see why not, just plot the amplitude for a range of frequencies and draw a graph from them. Bear in mind, the Q will be a LOT lower for 10KHz bandwidth, so the tuning won't be anywhere near as pronounced, and you will probably need a LOT more gain to make up the difference!.

Presumably this is still about your audio over ultrasonic project?, 10KHz bandwidth from the transducer should just about give you a low quality voice channel!.

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epilot said:

can you explain more about Q factor part for these ultrasonic transducers?

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yes this is about my experiment with ultrasonic and modulation,
anyway i have no access to that kind of wideband ultrasonics
but if there was a way to solve the problem with the receiver part and use SSB then 10kHz is ok.

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i have alot of peizo ceramics(resonance freq is near 28kHz) do you think it is possible changing their resonance freq usinf a conical?

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Nigel Goodwin said:

'Q' is the magnification factor - a bit like hitting a bell, you hit the bell and it rings at a specific frequency - and because of that it's very loud. If the bell was somehow modified to ring at a range of frequencies it wouldn't be anywhere near as loud, because the magnification factor (Q) would be a great deal lower.



Do you have the electronics working yet?.



No idea, but I wouldn't have thought so?.

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epilot said:

yes i want to start and work on it again,
it is amusing.(i am a stubborn person lol)

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