一种基于差层滑移策略的电容式应变传感器及其制备方法
The capacitive strain sensor designed using the differential layer slip strategy solves the problems of low sensitivity and hysteresis in capacitive sensors, realizing a capacitive strain sensor with high sensitivity and high linearity and ultra-fast response time.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2024-02-05
- Publication Date
- 2026-07-17
AI Technical Summary
Existing capacitive strain sensors have low sensitivity, which cannot meet the requirements of wide linear range and high sensitivity. They also suffer from hysteresis and nonlinear response problems.
A capacitive strain sensor was designed using a differential layer slip strategy. By combining two rigid substrates and staggered high and low stiffness elastomers and electrode layers with a solid electrolyte layer, a locally enhanced electric field distribution and heterogeneous substrate deformation were formed, breaking through the theoretical limit of capacitive sensor sensitivity.
The sensor achieves ultra-high sensitivity (GF=9.1×106) and ultra-high linearity (R2=0.9997) across the entire range, with almost no hysteresis and an ultra-fast response time (17 milliseconds).
Smart Images
Figure CN118009870B_ABST