High-sensitivity capacitive flexible three-dimensional force tactile sensor based on bionic mushroom structure

Abstract

The invention discloses a high-sensitivity capacitive flexible three-dimensional force tactile sensor based on a bionic mushroom structure. The high-sensitivity capacitive flexible three-dimensional force tactile sensor includes a hemispherical contact used as a top cover and a flexible substrate used as a bottom support, the hemispherical contact and the flexible substrate are connected through an annular fixing piece, and flexible hemispherical common electrodes and four flexible spherical curved surface excitation electrodes are arranged inside the hemispherical contact and the flexible substrate at intervals to form four capacitors which are spatially and stereoscopically distributed, and the whole capacitor is of a mushroom-shaped structure. The sensor provided by the invention has higher detection sensitivity and faster response speed, and can be applied to the research fields of electronic skin, flexible wearable electronic devices, soft robots, intelligent prostheses, man-machine interaction and the like.

Description

technical field [0001] The invention relates to a three-dimensional force tactile sensor, especially a high-sensitivity capacitive flexible three-dimensional force tactile sensor based on a bionic mushroom structure, which is mainly used in electronic skins, flexible wearable electronic devices, Research fields such as soft robotics, intelligent prosthetics and human-computer interaction. Background technique [0002] In recent years, with the development of information technology and the advancement of intelligence, more and more service machines and facilities in daily life are developing in the direction of intelligence. The arrival of the "smart age" is almost the general trend. Similar to the function of human skin, the three-dimensional force tactile sensor can perceive the normal force and tangential force at the same time. By applying it to the robot, the tactile perception can be realized. The core key of the three-dimensional force tactile sensor has been widely c...

AI Technical Summary

Problems solved by technology

[0006] However, although the research on the existing flexible three-dimensional force tactile sensor has achieved certain results, there are still many aspects to be improved.

For example, most of the three-dimensional force flexible tactile sensors that have been developed so far only improve the performance characteristics such as sensitivity by improving the material properties of the sensor. It is difficult to design a novel structure.

Moreover, most three-dimensional force tactile sensors have complex structures, have high requirements on the preparation process, and the cost of materials used in the preparation is relatively high.

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