Menu

Discussion Forum

New Discussion
Filtra

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

How do I extract the external impedance of a piezo device?

Posted 14 gen 2021, 10:17 GMT-5 Electromagnetics, Low-Frequency Electromagnetics, MEMS & Nanotechnology Version 5.5 3 Replies

Sjkds ksjdf
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I've simulated a piezoelectric device that is actuated by a boundary load and frequency of 10 Hz. I need to extract the external impedance seen by the disk. How do I go about this? Thanks.

3 Replies Last Post 16 gen 2021, 18:03 GMT-5
Dave Greve
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 4 years ago 15 gen 2021, 10:47 GMT-5

Not sure what you mean by "external impedance". Do you mean the source or Thevenin impedance??

Not sure what you mean by "external impedance". Do you mean the source or Thevenin impedance??
Sjkds ksjdf
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 4 years ago 16 gen 2021, 01:10 GMT-5

Not sure what you mean by "external impedance". Do you mean the source or Thevenin impedance??

Hey Dave, I'm not sure either. But the problem statement says "Extract the external impedance that the disk sees and explain the components". So I'm guessing it's the thevenin impedance(?) How do I go about doing this?

>Not sure what you mean by "external impedance". Do you mean the source or Thevenin impedance?? Hey Dave, I'm not sure either. But the problem statement says *"Extract the external impedance that the disk sees and explain the components".* So I'm guessing it's the thevenin impedance(?) How do I go about doing this?
Dave Greve
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 4 years ago 16 gen 2021, 18:03 GMT-5

In the absence of any other information the sentence you quote does not make sense. An impedance external to the piezo disk is...external to it and must be described somewhere else.

You should seek clarification of the problem statement.

In the absence of any other information the sentence you quote does not make sense. An impedance external to the piezo disk is...external to it and must be described somewhere else. You should seek clarification of the problem statement.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content