Skip to main content
. Author manuscript; available in PMC: 2022 Jun 3.
Published in final edited form as: IEEE Open J Ultrason Ferroelectr Freq Control. 2021 Jun 3;1:1–10. doi: 10.1109/ojuffc.2021.3085539

Fig. 4.

Fig. 4.

The overall results obtained experimentally in phantom using different Ispta and E levels with (a, b) HMI, (c, d) TSI, and (e, f) thermocouple measurements. The linear fittings show that HMI displacements present a more robust trend with Ispta (mean standard deviation of the error σI-HMI = ±4.2 μm) than that with E (σE-HMI = ±18.8 μm). The TSI temperature presented a slight better robustness with E vs Ispta (σI-TSI = ±0.3°C vs σE-TSI = ±0.2°C). The thermocouple measurements presented similar trends with Ispta and E (σI-Th = ±0.2°C vs σE-Th = ±0.3°C).