How should one measure and compensate (If necessary) a wire's stray capacitance in low-level measurements?
Is Guarding applicable here? If so, does it mean having a wire with same signal voltage twisted around signal wire?
In the example below, DUT is a capacitor whose leakage current must be measured. The black rectangle represents a metal shield. Metal shield is connected to LO terminal of source. (Sorry for childish drawing - I am not Da Vinci :D)