Hi, I would like to know the exact layout of both sets of copper strips and the gap between them. Thanks.
The production Soundplane has approx. 1.5cm wide strips with a 1mm gap in between. There is very little crosstalk between the strips because capacitive transfer between plates edge-on is a very small effect. I would advise starting with one 2x2 sensor so you can test these things for yourself.
The vertical and horizontal strips form a perfect square?
Thank you do much
Approximately. They could really be just about any aspect ratio and still work.