Designing an Electrostatic Sensor with COMSOL

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A user seeks guidance on creating a COMSOL model for a four-electrode sensor based on impedance spectroscopy, aiming to measure distance and thickness of an obstacle through changes in capacitive impedance in an electrostatic field. A response suggests considering whether the problem is stationary or time-independent, recommending the use of conductive media in DC or electrostatics mode. There is a mention of the need to refresh knowledge on impedance spectroscopy principles to effectively assist in the modeling process.
sayhitoarya
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Hi All,

I am pretty new to COMSOL. I want design model of a sensor with four electrode. This sensor mainly based on impedance spectroscopy principle. The model should measure the distance and thickness of the obstacle due to change in capacitive impedance of electrostatic field between the dipoles.

Can anybody help regarding this, how to start in which mode of electromagnetics?

Arya
 
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Is the problem stationary (or time-independent enough)? Would think conductive media DC or electrostatics. I'm going to have to refresh myself concerning impedance spectroscopy principle.
 

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