The principle of biological hypersensitivity and bionic technology

August 1, 2022, Harbin

Professor Zhiwu Han

Abstract

Exploring and imitating the unique sensing functions of living things is a new way to expand the limits of human perception and develop a new generation of high-precision sensing technology. In order to meet the needs of activities such as predation, courtship, and avoidance of natural enemies, scorpions with highly degraded visual systems have evolved slit sensilla on their cuticle surface that are extremely sensitive to low-frequency micro-vibrations, which can accurately perceive weak mechanical signals. The slit sensilla cleverly uses the coincidence of the neuron receptive field and the slit tip stress field to realize the super-sensitive signal. The biomimetic strain sensing element made by its structure, material and neuron characteristics has a sensitivity value under weak strain far greater than that of traditional metal strain gauges. The research on bionic perception provides new principles and new technologies for sensing technology, and is expected to solve many challenges faced by current mechanical sensors.

Biography

Zhiwu Han, professor and doctoral supervisor, is currently the director of Key Laboratory of Bionic Engineering (Ministry of Education) of Jilin University. Winner of the National Science Fund for Distinguished Young Scholars, Distinguished Professor of the Major Talent Project of the Ministry of Education, and Head of the Innovation Research Group of the National Natural Science Foundation of China. He mainly engaged in the research of mechanical bionics, bionic perception theory and technology, bionic functional surface and advanced biomimetic composites.

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