Menu

Discussion Forum

New Discussion
フィルター

Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

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.

impedance of a piezoelectric

Posted 2011/09/01 10:15 GMT-4 MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Modeling Tools & Definitions, Parameters, Variables, & Functions, Studies & Solvers, Structural Mechanics Version 4.1 6 Replies

Arlindo Garcia
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam


How do I calculate the impedance of a piezoelectric element?
I am using 2D-axisymmetric (space dimension): piezoeletric diveces (pzt) modes with study: frequency domain.

6 Replies Last Post 2016/11/17 22:55 GMT-5
Edgar Kaiser
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011/09/02 3:43 GMT-4
If you are talking about electrical impedance it is as simple as: Impedance = Voltage / Current. In gerneral everthing is complex.

Cheers
Edgar
If you are talking about electrical impedance it is as simple as: Impedance = Voltage / Current. In gerneral everthing is complex. Cheers Edgar
Arlindo Garcia
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011/09/02 9:04 GMT-4

Hello Edgar,

How do I calculate the current (I)?

i am using I=intop1(2*pi*r*pzd.Jz)...take a look (file .docx), but i have not results for current (I)


thanks for your reply
Hello Edgar, How do I calculate the current (I)? i am using I=intop1(2*pi*r*pzd.Jz)...take a look (file .docx), but i have not results for current (I) thanks for your reply

Attachments:

Edgar Kaiser
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011/09/02 9:43 GMT-4
Arlindo,

it seems you are integrating across boundary 3, which is on the symmetry axis. I think you must integrate across the interface between the brass electrode and the piezo disc.

Cheers
Edgar
Arlindo, it seems you are integrating across boundary 3, which is on the symmetry axis. I think you must integrate across the interface between the brass electrode and the piezo disc. Cheers Edgar
Arlindo Garcia
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2011/09/02 10:14 GMT-4
Edgar,

Take a look !

Tkanks,
Arlindo
Edgar, Take a look ! Tkanks, Arlindo
Chundong Xu
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago 2014/11/22 0:18 GMT-5
Hi Adlindo

Have you solved your question? I confront the same one as you, and I also found that many persons have those question of peizoelectric impedance. should someone can give us a simple modle to solve this problem.


Hi Adlindo Have you solved your question? I confront the same one as you, and I also found that many persons have those question of peizoelectric impedance. should someone can give us a simple modle to solve this problem.
Nurul Shafiqa
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 9 years ago 2016/11/17 22:55 GMT-5
Now im doing my final year project. and its about formulation theory impedance in increasing power output of piezoelectric. The problem is till now i cant find any formula for impedance piezoelectric. can you help me to give any info or anything that related with impedance piezoelectric. i am really need it.
Now im doing my final year project. and its about formulation theory impedance in increasing power output of piezoelectric. The problem is till now i cant find any formula for impedance piezoelectric. can you help me to give any info or anything that related with impedance piezoelectric. i am really need it.

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