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Piezoresistor notation

Posted Jun 8, 2015, 5:16 a.m. EDT MEMS & Nanotechnology, MEMS & Piezoelectric Devices, Parameters, Variables, & Functions Version 5.0 3 Replies

Sophie V
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Hello, I've recently been modelling piezoresitive cantilevers using Comsol, and I need to compare the simulated data of the piezoresistor change with the experimental one.
However, I do not see the physical meaning of the data given by pzrd.deltar1 to pzrd.deltar6. Is that a Voigt notation like:

R1-R6-R5
R6-R2-R4
R5-R4-R3

Thank you very much for your answers!
3 Replies Last Post Nov 11, 2016, 12:59 a.m. EST
Henrik Sönnerlind COMSOL Employee

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Posted: 10 years ago Jun 8, 2015, 7:30 a.m. EDT
Yes, It is a Voigt notation as you assume. It is documented in the "Tensor Versus Matrix Formulations" section in the "Theory for the Piezoresistivity Interfaces" chapter.

Regards,
Henrik
Yes, It is a Voigt notation as you assume. It is documented in the "Tensor Versus Matrix Formulations" section in the "Theory for the Piezoresistivity Interfaces" chapter. Regards, Henrik
Sophie V
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Posted: 10 years ago Jun 8, 2015, 8:20 a.m. EDT
Thanks a lot for this answer, even if I haven't found the specified documentation yet.
Edit: now I've got it!

Best regards,

Sophie V.
Thanks a lot for this answer, even if I haven't found the specified documentation yet. Edit: now I've got it! Best regards, Sophie V.
Anand Upadhyay
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Posted: 8 years ago Nov 11, 2016, 12:59 a.m. EST

Hello Mr. Sophie V,

i want to make a Piezoresistive cantilever then if you have really done it then share some steps that how can model it in proper manner. i am trying but there is so many error coming.

regards,
anand
Hello Mr. Sophie V, i want to make a Piezoresistive cantilever then if you have really done it then share some steps that how can model it in proper manner. i am trying but there is so many error coming. regards, anand

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