I am using the FDC1004 evm with reference design TIDA00317 for measuring level from a container. I use smaller container with 2.5mm thick.the distance between the level electrode is 4mm.
With an electrode length of 100mm for a small contrainer worked well for me. I used Out-of-phase technique for the measurements. The measurements were ranging from 2pf to 7.8pF where 2pF was for empty container and 7.8 for full.
But I need to use a bigger PVC container with length of 180mm and 4.9mm thick and the measurement should cover whole length of the container. For this I need to modify the reference design
Could you suggest me a solution for this problem?
Should I need to increase the length or width of the electrode?
or is there anything else that I need to take in to consideration before modifying the reference design?
Regards,
Sami dhaou
