Hello.
I want to somehow create/generate ultra-sound with a frequency rang that exceeds 100kHz, generating sine- or square-waves of such frequencies as a electrical signal is obviously not a problem but how would I go about translating such signals into actual sound-waves?
Ordinary speakers, even the fanciest of the high-end speakers wouldn't as far as I know be able to come even close to 100kHz and I do know that there are ultra-sound transmitters but AFAIK they produce ultra-sound at pretty much a fixed frequency, so I though that I should open a thread here to see if anyone here knows about some way of achieving this.
Would it be possible/feasible to use a range of ultra-sound transmitters covering the frequency range of interest?
This is really experimental so I can't clearly specify a range but 100kHz - 200kHz would be a good start.
Are there ultra-sound transmitters which outputs frequencies that may be altered or adjusted?
I have been thinking about this for some weeks now and I can't come up with anything other than ultra-sound transmitters with fixed frequency and using a larger number of them, switching between them to produce ultra-sound with frequencies that increase in steps, the steps being decided by what sort of choices there are for ultra-sound transmitters. But from what I have found online(mind you I know nothing about this area of technology) there is transmitters available with a output frequency of around 143 kHz or something like that, but I really need to be able to have the ability to create a range of individual frequencies one at a time.
Any and all ideas are welcome, do I want to do something that is even possible?
Regards