Multi-dimensional mechanical signal fine recognizable electronic skin
An electronic skin and mechanics technology, which is applied in the field of multi-dimensional mechanical signals and can identify electronic skins. Effect
Inactive Publication Date: 2020-09-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology
[0004] In view of the above existing problems or deficiencies, in order to solve the technical problems that the current electronic skin cannot be self-powered, and cannot respond to external continuous static force stimulation and transient dynamic force stimulation (mechanical and thermal stimulation) at the same time
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[0021] In order to make the above-mentioned functions and structures of the present invention easy to understand, the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. The following embodiments are only used to further illustrate the present invention, and the content of the invention itself is not limited in any way. Those skilled in the art can make some non-essential improvements and adjustments according to the present invention.
[0022] In this embodiment, the multi-dimensional mechanical signal is fine and identifiable, and the electronic skin is prepared by the following process:
[0023] Step 1. Mix PVDF-TrFE and methyl ethyl ketone according to the ratio of 5.52g / 20ml, and use a magnetic stirrer at room temperature to continue stirring at a speed of 500rmp for 12h. After it is fully dissolved, reduce the stirring speed to 60rmp and stir slowly for 1h Carry out defoaming treatment;
[0024] Ste...
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Abstract
The invention belongs to the field of electronic skin, and relates to sensors, microelectronics and piezoelectric materials, in particular to multi-dimensional mechanical signal fine recognizable electronic skin. According to the invention, an electronic component TFT imaged by a display is applied to the electronic skin to be used as a capacitive sensor; when an external object is contacted withthe upper electrode, the capacitance of the TFT circuit is changed, the capacitance in contact with the TFT induction area and the capacitance not in contact with the induction area are obviously different, and the normalized data of the difference points are displayed in a grey-scale map, so that the surface topography pattern of an external object is reflected, and the continuous static force stimulation of the outside is visualized; and therefore, the electronic skin has high resolution, and quasi-static force perception and visual representation of external stimulation are realized. And then through combined application with a piezoelectric sensor, electronic skin self-driving is realized, and static force visualization and instantaneous dynamic force stimulation are realized in response to external continuous static force stimulation.
Description
technical field [0001] The invention belongs to the field of electronic skin and relates to sensors, microelectronics and piezoelectric materials, in particular to an electronic skin with finely identifiable multi-dimensional mechanical signals. Background technique [0002] The skin is an organ that wraps the surface of the body and has the functions of regulating body temperature and sensing external stimuli. Understanding the characteristics of skin and preparing electronic skin with skin function is one of the current research hotspots. Moreover, as electronic skin is more and more widely used in artificial intelligence, medical treatment, aerospace and other fields, electronic skin with flexible self-driving, high sensitivity, multi-functional perception and other properties has become the core focus of this type of research. [0003] In recent years, with the in-depth research on the above concerns, electronic skin technology has developed rapidly. However, there are...
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IPC IPC(8): G01L5/165H01L41/27H10N30/05
CPCG01L5/165H10N30/05
Inventor 向勇李炳牙虎瑛胡潇然张千刘帅郭榛
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA