Post date: Jan 3, 2015 12:49:52 AM
Denis VK6FADF writes in:
Daniel talked of unknown capacitance. Brought to mind the arduino-based LC meter designs I've seen.Â
Came across another just now...
The above uses a pulse to excite the LC tank circuit and then measures the decay frequency. Others use a fee runnig oscillator and measure the frequency of the stable output.
Similar to the below...