In-circuit impedance
measurement provides useful information for many EMC applications. The
inductive coupling approach is a promising in-circuit impedance measurement
method due to its non-contact characteristics and simple on-site
implementation. Many measurement setups of this approach were reported.
However, a comprehensive survey and comparison of these setups have not been
found in the literature. This paper reviews these setups in terms of their characteristics,
limitations, and applications. In addition, recommendations for future research
are also presented.
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