How can i creat electrode in a cmut model in Designer mode Answered

Florian

July 04, 2022 21:29

I try to build a cmut cell model and i don't know how to apply both DC and AC voltage. Should I create electrode and apply voltage first or no material just apply load

3 comments

Official comment

Kevin Chan
July 05, 2022 11:09
You cannot set up CMUT models in Designer. You should be scripting in Analyst.

Here is example code for setting a DC Bias with an AC function.
```
data 
    /* Define Custom Bias function named 'ramp' with 3 samples
    hist ramp 3
    0.0        0.0
    $tRamp  $bias
    1.0     $bias

func
    /* Name of function - 'funcBIAS'
    name BIAS
    
    /* AC Signal triggering at $t3
    blak $freqint $vdriv $t3 
    
    /* Combine AC signal with DC Bias Signal
    hist ramp 1. add
```
Here is a starting point for learning about the simulation process for CMUTS:

https://support.onscale.com/hc/en-us/articles/360020687631-Introduction

If you are unfamiliar with the code base, I would start with a more simple coded example first:

https://support.onscale.com/hc/en-us/articles/360010064838-PZT-Disc-in-Load-in-Analyst

Thanks,
Kevin
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Florian
July 05, 2022 16:49

can i ask why cmut can not be realized in designer?

can i apply pressure as the dc bias voltage?

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Kevin Chan
July 06, 2022 10:34

Designer is not designed for complex CMUT simulations so will not support specific setup requirements for this application.

Please read through the article link above regarding CMUT simulations for a full understanding of how we approach simulating CMUTS.

You can download an example here: https://support.onscale.com/hc/en-us/articles/360009610992-CMUT-2D

Thanks,
Kevin

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