Sequential (113) Electrodes
https://kamchihau.blogspot.com/2024/12/blog-post.html
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Ref: https://kamchihau.blogspot.com/2024/12/blog-post.html .
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John: You might read this article first. https://kamchihau.blogspot.com/2024/12/blog-post.html.
Me: OK.
John: That article said "The wider the positive electrodes, the higher capacitance's response and the higher the frequency".
Me: Yes,.
John: However, it isn't always the case. See the 1st picture. The "ideal" width of the positive electrodes is 6mm. Of course, from 0mm to 6mm, the more close to 6 mm, the higher the response of the capacitance and the higher the frequency. However, if the width of the positive electrodes exceed the ideal width of 6mm, the response of capacitance drop and the frequency drop too.
Me: Why?
John: See the 2nd picture. The wider the positive electrodes, the deeper the field line.
Me: OK.
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the width of positive electrodes
0mm (capactiance's response = 0)
2mm (capacitance's response = 2)
4mm (capacitance's response = 4)
6mm (capacitance's response = 6) <--- The ideal width of the electrodes.
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8mm (capacitance's response = 4) <--- The field line become weaker
10mm (capacitance's response = 2) <--- The field line become weaker.
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John: When the width of positive electrodes exceed 6mm, the field line become weaker and weaker. Finally, it make the field-formation slower. 6mm is the ideal width.