公开(公告)号：US20240319023A1

公开(公告)日：2024-09-26

申请号：US18424848

申请日：2024-01-28

Applicant: University Electronic Science and Technology of China

Inventor： Zaihua Duan ,  Qi Huang ,  Huiling Tai ,  Zhen Yuan ,  Yadong Jiang

IPC: G01L1/00

CPC classification number: G01L1/005

Abstract: An ion gradient power-generation stretching strain sensor and its preparation method, which relates to the technical field of flexible strain sensor and flexible wearable electronic technology, includes: latex pipes, an elastic line covered with a first hygroscopic sensitive material, two electrodes, and filter paper covered with a second hygroscopic sensitive material; wherein at both ends of the pipe, the filter paper is fixed inside and the corresponding electrodes of the elastic line at one end; the moisture absorption performance of the second hygroscopic sensitive material is better than the first hygroscopic sensitive material. The present invention realizes self-power supply of the sensor based on the ion gradient, does not require external power supply, and uses the elasticity line of the first hygroscopic sensitive material to achieve the strain detection, without consuming the material of the sensor itself and thus enhances life of the sensor.