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(a) A sketch of stereocilia and hair cell in the ear. (b) The electromechanical model for the artificial hair cell. (c) Illustration of the corresponding effective electromechanical potential as a function of cantilever .
(a) The sensitivity as a function of the driving amplitude for various frequencies (black circle), 0.975 (blue square), and 0.98 (red diamond), from below. The sensitivity of the corresponding passive systems is plotted using green solid line. (b) The oscillation amplitude when the external force is applied where from below. (c) The oscillation amplitude for to be compared with the results (d) for the passive resonator without the feedback action. We choose and , for all cases. The length is in units of . The sampling time is .
Numerical calculations for (a) the input force signal (b) the force noise plus input force signal (c) the displacement with adaptation feedback action as a function of time. The parameters in use are , , and . The force and length are in units of and , respectively.
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