How to measure the capacitance?

Hi,

If the capacitance is small (pF), is there any kind of experiment can be done to mearsue it?

If yes, what's the principle of the mearsurement?

Thanks in advance!

Take a look at this measurement procedure:
" Inductance and Capacitance meter using 'Frequency Shifted Oscillator' "

http://www.qsl.net/iz7ath/web/02_bre...er01/index.htm

Regards,
IanP