Can Ultrasound Be Used to Penetrate Through Air and Bone?

[berkeman]

https://www.google.com/url?sa=t&sou...IQFnoECAwQBQ&usg=AOvVaw296Z0s1WhBq2md9xEIMtNS

https://www.google.com/url?sa=t&sou...ChAWegQIAhAB&usg=AOvVaw0ae4hs5y05zxxKCwzRHbD2

Those are not links to peer-reviewed journal articles. Those are links to popular press articles that are trying to sell subscriptions to their platform.

From the PF rules (see INFO at the top of the page):

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[Sibilo]

Those are not links to peer-reviewed journal articles. Those are links to popular press articles that are trying to sell subscriptions to their platform.

From the PF rules (see INFO at the top of the page):

yes, I understood, but I said from the beginning that it was my experimentation followed by articles. However, now it seems a bit unfair to close, what will you do?

 

[berkeman]

good morning I have a small problem, so can a low frequency 20 - 40 khz ultrasound beam pass through 60 cm of "air" and then 3 cm of bone? Considering the low frequency of ultrasound in this case it is possible

yes, I understood, but I said from the beginning that it was my experimentation followed by articles. However, now it seems a bit unfair to close, what will you do?

From the beginning you misrepresented your question, presumably to conceal the strange nature of your experiments. You received good replies with respect to the impedance mismatch problem, and also good suggestions to improve the setup (put the ultrasonic transducers in the soil near the target roots). That is about the best we can do for you now under these circumstances.

Certainly if you or others get work published in the peer-reviewed literature (per the PF rules link that I noted), then contact the Mentors and we can re-open this thread.

Thanks to all who tried to help the OP.