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. Author manuscript; available in PMC: 2013 Mar 6.
Published in final edited form as: IEEE Trans Ultrason Ferroelectr Freq Control. 2011 Dec;58(12):2646–2658. doi: 10.1109/TUFFC.2011.2127

Fig. 13.

Fig. 13

Wire phantom images: (a) a transducer and Panametrics 5900PR with 40 dB gain, (b) a transducer and designed front-end system based on BiCMOS preamplifier, (c) a transducer and Panametrics 5900PR with 38 dB gain, and (d) a transducer and designed front-end system based on CMOS preamplifier.