Maximizing Ultrasonic Wave Production with Magnetostriction Method

[smart_worker]

I don't really understand what is the need of giving feedback in the magnetostriction method to produce ultrasonic waves.

I am thinking of just winding a single rod over a nickel rod and then connecting then connecting the 2 ends to a battery. When the current is passed,magnetic field develops and the rod vibrates and produces ultrasonic waves. Is this possible?

 

[Bobbywhy]

You may study how it is done by others. I used the search terms "magnetostriction method to produce ultrasonic waves" in Google search. After waiting approximately 2.02846 seconds several websites appeared that address your issue. Here is just one:
http://www.winnerscience.com/ultrasonic/production-of-ultrasonic-waves-by-magnetostriction-method/

Cheers, Bobbywhy

 

[smart_worker]

I am thinking of just winding a single rod over a nickel rod and then connecting then connecting the 2 ends to a battery. When the current is passed,magnetic field develops and the rod vibrates and produces ultrasonic waves. Is this possible?

I added the words "then connecting" twice. That's why this question appears lame.