How to manage channel frequency?

Question

Electronics

Hello! There are 16 piezo emitters, it is necessary to apply a signal to each of them with a certain frequency close to resonance. How can you control the frequency on 16 channels at the same time?

Answer 1

There are many possibilities to implement generation. The end goal is not entirely clear. Do you want to simultaneously apply a frequency signal to 16 emitters in different ranges or sequentially? In what ranges?
What type of emitter, sometimes they come assembled with their generator. I disagree with the previous author regarding the obsolete part. They are widely used as audio signal solutions in equipment of wide application.

Answer 2

Do you really need 16 quite different frequencies? EMNIP, a piezo emitter is a very old device, and mass technology gives a small technological spread.
For example, an accuracy of 2 kHz at a nominal value of 40 is 5%.
Well, "on the forehead" - only 16 tunable and calibrated for a specific "iron" generators. For example - on a small CPLD.

Answer 3

Possibly PWM .