Dielectric-varied capacitive flexible three-dimensional force tactile sensor

Abstract

The invention discloses a dielectric-varied capacitive flexible three-dimensional force tactile sensor. The dielectric-varied capacitive flexible three-dimensional force tactile sensor is characterized in that a flexible printed circuit board is arranged, wherein a square common electrode and four identical rectangular induction electrodes which are located on the periphery of the edges of the common electrode in an equidistant mode are printed on the printed circuit board; the induction electrodes are in two-to-two symmetry with the center of the common electrode serving as the symmetry point; a composite multi-dielectric layer is fixed to the flexible printed circuit board; the composite multi-dielectric layer is formed by an inversely-concave PDMS dielectric layer and an air dielectric layer located in a groove of the PDMS dielectric layer; the composite multi-dielectric layer is buckled on the upper portion of the flexible printed circuit board, and the common electrode and the four induction electrodes are located in the air dielectric layer; a PDMS hemispheric contactor is arranged on the composite multi-dielectric layer. According to the dielectric-varied capacitive flexible three-dimensional force tactile sensor, the common electrode and the induction electrodes are located on the same plane; compared with a traditional capacitive tactile sensor of an up-down electrode structure, the dielectric-varied capacitive flexible three-dimensional force tactile sensor has the advantages of being simple in manufacturing process and capable of being easily arrayed.

Description

technical field [0001] The invention belongs to the field of sensing technology, and relates to a three-dimensional force touch sensor applied to artificial intelligence skin. Background technique [0002] Tactile sensors play an important role in the field of robotics. Robots rely on tactile sensors to accurately perceive external information and achieve good interaction with the external environment. In particular, the flexible multi-dimensional tactile sensor can be used as the flexible and sensitive skin of the robot to better meet the requirements of various service robots that are currently rapidly developing, realize good human-computer interaction, and better serve humans. In addition, tactile sensors are widely used in many fields such as sports training, rehabilitation medicine and human biomechanics. In these fields, the unstructured environment puts forward higher requirements for haptic technology, and sensors with good flexibility and three-dimensional force d...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the shortcomings of the above-mentioned existing three-dimensional force sensors, such as complex preparation process, limitations in application occasions, and difficulty in arraying, the present invention aims to provide a fully flexible, high-sensitivity, stable-performance, Capacitive three-dimensional force tactile sensor with simple preparation process and easy arraying

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