Questions tagged [interdigital]

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Why do sensors or biosensors use AC excitation signal and not square wave signal?

I have recently started looking into transducers to measure a natural physical phenomena. The sensors I read about, especially electrochemical sensors like interdigital electrodes use a sinusoidal signal to enable the sensor electrodes. I came…
David Norman
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Interdigital Capacitor's Capacitance

I want to calculate the capacitance of an IDC and I am using this calculator: https://www.rfwireless-world.com/calculators/interdigital-capacitor-calculator.html It has a couple of different inputs and it outputs C in pF / cm. I have seen an answer…
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Comsol simulation for electrochemical impedance spectroscopy

I am new to Comsol and did not know where else to seek help, so posting here. I am trying to analyse how finger-like interdigital electrodes made of gold can be used to detect concentration of nitrates in drinking water. I am simulating this on…
David Norman
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