文献类型：期刊文献

英文题名：Topology-optimized flexible capacitive pressure sensors suitable for medium-pressure range

作者：Xia, Cheng Li, Jiachun Chen, Yuewei Zou, Zhongfei Zhang, Yingbo Shi, Wenhai Wang, Yongtao

第一作者：Xia, Cheng

通信作者：Li, JC[1]

机构：[1]Guizhou Univ, Sch Mech Engn, Guiyang 550000, Peoples R China;[2]Guizhou Inst Technol, Sch Mech Engn, Guiyang 550003, Peoples R China;[3]Guizhou Inst Water Resources Sci, Guiyang 550000, Peoples R China

第一机构：Guizhou Univ, Sch Mech Engn, Guiyang 550000, Peoples R China

通信机构：corresponding author), Guizhou Univ, Sch Mech Engn, Guiyang 550000, Peoples R China.

年份：2025

卷号：34

期号：2

外文期刊名：SMART MATERIALS AND STRUCTURES

收录：;EI(收录号：20250917943554);Scopus(收录号：2-s2.0-85218441204);WOS:【SCI-EXPANDED(收录号:WOS:001409849900001)】；

基金：This work was sponsored by the Guizhou Provincial Department of Science and Technology Project (Grant No. [2022] 196 and Grant Nos. [2023] 010), and the Major Science and Technology Project of the Ministry of Water Resources (Grant No. SKS-2022056) and the Science and Technology Planning Project of Guizhou Province (Grant No. ZK [2024] 510).

语种：英文

外文关键词：topology optimization; flexible sensors; capacitive pressure sensors; sensitivity

摘要：Numerous flexible capacitive pressure sensors (FCPSs) designed for low-pressure range perform highly sensitive sensing over a wide detection range. However, these sensors are primarily based on inspiration, and large pressure applications have yet to be explored. In this paper, we propose for the first time the stiffness topology optimization of hyperelastic dielectrics by analyzing the working mechanism and target sensing characteristics. The feasibility of using topological dielectric as a dielectric layer for FCPSs is evaluated through a combined analysis using ABAQUS and COMSOL. Three different volume fractions ( f & lowast;) FCPSs ( f & lowast; = 0.35,0.4,0.5) are manufactured utilizing 3D printing. The FCPSs exhibited high sensitivity at external pressure values of 7.06 kPa ( f & lowast; = 0.35), 8.71 kPa ( f & lowast; = 0.4), and 18.9 kPa ( f & lowast;= 0.5), respectively, and the highest sensitivity reached 1.29 kPa-1 ( f & lowast; = 0.35). In addition, when f & lowast; = 0.35, FCPSs exhibiting high repeatability over 6000 cycles in 40 kPa, a relatively wide detection range (60 kPa) and high stability at different pressures (5-60 kPa) and temperatures (15 degrees C-60 degrees C). Lastly, the high performance of FCPSs is further illustrated through motion monitoring of three different joints, collision monitoring of a 3D printer, and testing on a robotic car, indicating their application prospects.