This blog post takes a look at impedance measurements in the presence of a high parasitic resistance, and shows that you can accurately measure small impedance DUTs even in the presence of a high in-series resistance such as with an unavoidable resistance in the measurement fixture, cables or sample stage. We show that thanks to the high dynamic reserve of the MFIA (and MFLI with MF-IA option), coupled with the user compensation feature, accurate impedance measurements can be taken even in the presence of a high in-series resistance such as 1 MΩ.
