Revealing stepping forces in sub-mg tiny insect walking

doi:10.1088/1674-1056/abb7ff

中国物理B ›› 2020, Vol. 29 ›› Issue (12): 124703-.doi: 10.1088/1674-1056/abb7ff

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇下一篇

收稿日期:2020-08-05 修回日期:2020-09-08 接受日期:2020-09-14 出版日期:2020-12-01 发布日期:2020-11-19

Revealing stepping forces in sub-mg tiny insect walking

Yelong Zheng(郑叶龙)¹, Wei Yin(尹维)², Hongyu Lu(鲁鸿宇)², and Yu Tian(田煜)^2,†

¹ State Key Laboratory of Precision Measuring Technology and Instruments, Tianjin University, Tianjin 300072, China; ² State Key Laboratory of Tribology, Tsinghua University, Beijing 100084, China

Received:2020-08-05 Revised:2020-09-08 Accepted:2020-09-14 Online:2020-12-01 Published:2020-11-19
Contact: ^†Corresponding author. E-mail: tianyu@tsinghua.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 51323006 and 51425502).

1. Video.mp4(134KB)

摘要/Abstract

Abstract: Measuring walking forces of small or tiny insects can help the comprehension of their locomotion principles. However, as their size and force are generally too small, walking forces of small insects in sub-mg mass have never been actually measured. In this work, a convenient multi-lens and jelly surface based shadow method was developed for simultaneous multiple walking forces measuring, ranged from nN to mN with a sensitivity of sub-nN/pixel under ambient conditions. Walking force of six legs of a 0.3 mg water treader was demonstrated. The obtained results disclosed a rapid and extending middle leg strategy of water treader in walking forward above a jelly surface. This method is cost-effective and high-resolution, which could be easily used in measuring other tiny forces.

Key words: tiny force, shadow, walking forward, bean jelly

中图分类号: (Breakup and coalescence)

47.55.df

47.55.D- (Drops and bubbles) 68.03.-g (Gas-liquid and vacuum-liquid interfaces)

. [J]. 中国物理B, 2020, 29(12): 124703-.

Yelong Zheng(郑叶龙), Wei Yin(尹维), Hongyu Lu(鲁鸿宇), and Yu Tian(田煜). Revealing stepping forces in sub-mg tiny insect walking[J]. Chin. Phys. B, 2020, 29(12): 124703-.

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Revealing stepping forces in sub-mg tiny insect walking

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