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. Author manuscript; available in PMC: 2019 Sep 1.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2018 Jun 27;65(9):1618–1630. doi: 10.1109/TUFFC.2018.2851188

Table I.

Average impedance (Ohms) of array elements before and after tuning with inductors

Impedance Re(Z) (Ohms) Im(Z) (Ohms)
Untuned 59.1±3.8 −207.9±3.2
Tuned 72.2±4.9 −13±6.6