guys i am doing my pro where i need to convert my capacitance sensor input to voltage, i know there re two methods of direct and indirect, i would prefer the direct one where i can directly convert capacitance to AC voltage then using AC to DC covertor to get the DC voltage as the output.
so I searched through the internet and found a good circuit
http://www.google.com/url?sa=t&rct=...3YD4DA&usg=AFQjCNF7YbHY9BKljN6Ggmcd1SrBtVsbTw
the circuit is in page 4 figure 4, could someone please explain a little bit the circuit for instance i dont see any input voltage ?
thank u so much for ur time and help !
so I searched through the internet and found a good circuit
http://www.google.com/url?sa=t&rct=...3YD4DA&usg=AFQjCNF7YbHY9BKljN6Ggmcd1SrBtVsbTw
the circuit is in page 4 figure 4, could someone please explain a little bit the circuit for instance i dont see any input voltage ?
thank u so much for ur time and help !
Attachments
-
906 KB Views: 30