Multifunctional flexible touch sensor

Abstract

The invention discloses a multifunctional flexible touch sensor. The flexible touch sensor is characterized in that a flexible polyimide circuit board is used as a substrate; a three-dimensional force sensing unit array and a temperature sensing unit array are respectively arranged on the substrate; three-dimensional force sensing units in the three-dimensional force sensing unit array and temperature sensing units in the temperature sensing unit array are arranged at intervals; and the surface height of each temperature sensing unit is lower than the surface height of each three-dimensional force sensing unit, thereby forming the integral concave-convex distribution form. The full-flexibility multifunctional touch sensor disclosed by the invention has the advantages of excellent surface adaptability, high three-dimensional force measurement reliability, small cross interference of mechanics and temperature information.

Description

technical field [0001] The invention belongs to the technical field of sensing, and more specifically relates to a multifunctional flexible touch sensor applied to robots. Background technique [0002] The sense of touch is an important sense when a living body is in direct contact with an external object. Through the sense of touch, various physical information of the target object can be obtained, such as the size of the contact force, softness, hardness, elasticity, roughness, temperature, humidity and other sensory information. . Tactile sensors are an important means for intelligent robots to perceive various external information. The multifunctional tactile sensor has multiple sensors and multi-information processing technology in order to obtain more tactile information than a single sensor. As robots begin to enter human's daily life, they will be required to have the same multiple perception capabilities as humans, so it is particularly important to study safe and...

AI Technical Summary

Problems solved by technology

Sensitive units such as silicon piezoresistive and silicon temperature made by microelectronics contain extremely fragile silicon diaphragms. Even if they are implanted in the protective layer of polymers, the reliability between the robot and the operating object cannot be guaranteed. The adaptability is poor, so that the tactile sensor is limited in flexibility and continuous, large-area measurement of pressure and temperature information

According to the research status at home and abroad, there is no relevant report on the flexible multifunctional tactile sensor for detecting temperature and three-dimensional force.

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