How to Handle Phase Shifts in a Measurement

App brief: compensated resistance measurements using a lock-in

Lock-in amplifiers are commonly used for resistance measurements in cryogenic environments. However, the effects of parasitic capacitance are often ignored in these measurements. This document explains how to handle phase shifts caused by capacitance in resistance measurements and demonstrates a more accurate method for calculating resistance and capacitance using a lock-in amplifier. By considering the phase shift, the measurement error can be significantly reduced.

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