Looking at the circuits that converts pulse width to voltage. I found that it might be very tasking to implement the circuit as well as finding the neccessary parts. Some devices are not readily available as there are not a lot of experimenters from where I come from.
Looking at the catalog of one of our electronics stores, I found that they have an available frequency to voltage IC named the LM2907N.
I wonder if it would be feasible If I could connect oscillator output directly to this device so I could use its output to drive my ADC and display?
By the way, I changed my capacitance tank design. Instead of making the sides of the tank the conducting plates, I plan to place two copper plates wrapped in insulation(I plan to use two PCBs for my prototype), and place them inside the tank at a few centimeters from each other. I'm thinking I could get a more accurate capacitance with this design.
What do you guys think?