果蝇的滚动控制
Roll Control in Fruit Flies
摘要：
由于空气动力学的不稳定性，稳定的扑翼飞行需要始终存在的快速纠正措施。在这里，我们调查苍蝇如何控制身体滚转角，他们最敏感的自由度。我们在每只苍蝇上粘上一块磁铁，施加一个短的磁脉冲，使它在半空中滚动，然后拍摄纠正动作。在$30\pm7\mathrm{ms}$内，通过应用线性PI控制器很好描述的冲程幅度不对称性，飞行校正高达$100^{\circ}$的扰动。反应潜伏期为$\sim5\mathrm{ms}$，这使得侧倾矫正反射成为动物王国中最快的反射之一。
英文摘要：
Due to aerodynamic instabilities, stabilizing flapping flight requires ever-present fast corrective actions. Here we investigate how flies control body roll angle, their most susceptible degree of freedom. We glue a magnet to each fly, apply a short magnetic pulse that rolls it in mid-air, and film the corrective maneuver. Flies correct perturbations of up to $100^{\circ}$ within $30\pm7\mathrm{ms}$ by applying a stroke-amplitude asymmetry that is well described by a linear PI controller. The response latency is $\sim5\mathrm{ms}$, making the roll correction reflex one of the fastest in the animal kingdom.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
