Tactile sensor, method of manufacturing, method of detecting, and flexible skin

By designing a stacked structure of four electrode units and a piezoresistive detection unit in the tactile sensor, the resistance change is decoupled, solving the problem that existing sensors cannot detect shear force. This enables simultaneous detection of normal force and shear force, expanding the applicability and improving detection accuracy.

CN122409013APending Publication Date: 2026-07-17SIXING INTELLIGENT ROBOT (ZHEJIANG) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SIXING INTELLIGENT ROBOT (ZHEJIANG) CO LTD
Filing Date
2026-03-24
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing planar piezoresistive tactile sensors can only detect normal forces and cannot effectively detect shear forces parallel to the contact surface, resulting in limited functionality and application range.

Method used

Design a tactile sensor that uses a first substrate layer, an electrode layer and a piezoresistive layer stacked together. The electrode layer includes an electrode unit with four individual electrodes. The piezoresistive layer is bonded to the individual electrodes to form four piezoresistive detection units. Normal force and shear force data are determined by decoupling resistance changes.

Benefits of technology

This technology enables the simultaneous detection of normal and shear force data, expanding the sensor's applicability and improving detection accuracy and sensitivity.

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Abstract

本发明提供了一种触觉传感器、制备方法、检测方法及柔性皮肤,涉及检测器件技术领域,该触觉传感器包括层叠设置的第一基材层、电极层、压阻层和第二基材层,所述电极层包括电极单元,所述电极单元包括阵列设置的四个电极单体;所述压阻层包括压阻单元,所述压阻单元与所述电极单元的四个所述电极单体相对且贴合,以共同形成四个压阻检测单元;通过对每个所述压阻单元对应的四个所述压阻检测单元的电阻变化进行解耦,以确定作用于所述压阻单元所在位置的法向力数据、剪切力数据和剪切力方向。本发明可扩大触觉传感器的适用范围。
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