Multi-mode flexible tactile sensor capable of realizing full-surface continuous sensing, module and preparation method of multi-mode flexible tactile sensor

By designing a multimodal flexible tactile sensor that integrates flexible pressure, temperature, and Hall effect sensors, the integration and accuracy issues of embodied intelligent robots in tactile perception have been solved. This enables efficient perception of three-dimensional force, temperature, and magnetic field signals, thereby improving the intelligence level of the robot equipment.

CN121346892APending Publication Date: 2026-01-16SUZHOU LINGCHUANG NO 1 TECHNOLOGY PARTNERSHIP (LLP)
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Patent Information

Application Number
CN202511540220.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-01-16

AI Technical Summary

Technical Problem

Existing embodied intelligent robots suffer from low integration, insufficient continuity and accuracy of perception, and poor material flexibility and adaptability in tactile perception, making it difficult to meet the needs of multi-dimensional and efficient interaction in complex environments.

Method used

A multimodal flexible tactile sensor capable of continuous sensing across the entire surface is designed. It employs a flexible pressure sensor, a temperature sensor, a Hall sensor, and a hybrid magnetic microparticle film, which are combined into a multimodal flexible sensing film using adhesives or thermoforming processes. This film is then integrated onto a data acquisition circuit board to achieve accurate acquisition of three-dimensional force, temperature, and magnetic field signals.

Benefits of technology

It achieves high integration, continuity, and accurate perception of three-dimensional force, temperature, and magnetic field signals, improving the intelligence level and information richness of robotic equipment, and is suitable for industrial robotic arm grasping and automated control.

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Abstract

The invention discloses a multi-mode flexible tactile sensor capable of realizing full-surface continuous sensing, a module and a preparation method of the multi-mode flexible tactile sensor capable of realizing full-surface continuous sensing, and the multi-mode flexible tactile sensor comprises a collector circuit board, the upper surface of the collector circuit board is regularly provided with a flexible pressure sensor used for pressure signal measurement and pressure sensing, a flexible temperature sensor used for temperature signal measurement and temperature sensing, and a mixed magnetic particle adhesive film used for generating a magnetic field. A Hall sensor array used for magnetic field signal measurement and three-dimensional force sensing and a signal processing module used for signal acquisition and processing are regularly arranged on the lower surface of the collector circuit board. According to the multi-mode flexible touch sensor capable of continuously sensing the whole surface, through cooperative work of the mixed magnetic particle glue film, the flexible pressure sensor / flexible temperature sensor and the Hall sensor layer, accurate collection of three-dimensional force signals / temperature signals and magnetic field changes can be achieved.
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