I have a device and the output ac voltage is 1-2Vp-p with very low current. I made a voltage quadrubler with a storage capacitor(output) in order to rectify the voltage and observe how much time is needed to charge the capacitor.
So, while the device's current is very low, if I connect my oscilloscope to the storage capacitor and let the device operates for two hours I will never see the charge waveform because the capacitor discharges through the probe.
Could you suggest me something to stop the flow of the current through the probes. I thought to connect a resistor parallel to the capacitor and then connect the probes but it didn't work.