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. 2023 Feb 10;17:1047493. doi: 10.3389/fnbot.2023.1047493

FIGURE 5.

FIGURE 5

Energy transfer process of the SMA-based soft composite structure. i/U: current/voltage, T: temperature, λ: elongation of SMA spring, F: contraction force of SMA spring, F1: force of manganese steel, θ: angle of SSCS, α: angle of finger.