Evidence map›Paper›PMID 39943277›Full record

ArticleSensors (Basel, Switzerland)2025

Modeling and Relative Permittivity Modulation of Cu/PDMS Capacitive Flexible Sensor for Pressure Sensing.

Xu Wang, Yuelong Zhang, Tian Zhang, Guanyu Fu, Yinlong Zhu, Ying Liu

Abstract read
In one paragraph

Article in Sensors (Basel, Switzerland), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Xu WangCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.ORCID 0000-0002-0680-6908
Yuelong ZhangCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.
Tian ZhangCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.
Guanyu FuCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.
Yinlong ZhuCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.ORCID 0000-0003-4574-3900
Ying LiuCollege of Mechanical and Electronic Engineering, Nanjing Forestry University, Nanjing 210037, China.

Funding

high level talent project of "six talent peaks" in Jiangsu Province GDZB-024Jiangsu Government Scholar for Overseas Studies JS-2024-7National Natural Science Foundation of China 51305209natural science research projects of Jiangsu Universities 18KJA4600050natural science research projects of Jiangsu Universities 21KJB460010open project of National Key Laboratory of Robotics 2018-016youth science and technology innovation fund of Nanjing Forestry University CX2019009
6 · The paper itself

Abstract

This study aims to establish an equivalent parallel capacitance model for a copper/polydimethylsiloxane (Cu/PDMS) capacitive flexible pressure sensor and modulate its relative permittivity to optimize pressure sensing performance. The Cu/PDMS composite material is an ideal dielectric layer for sensors due to its high dielectric constant and tunable elasticity. By adjusting the different mixing ratios of PDMS and copper particles in micro size, the components and structure properties of the composite material can be modified, thereby affecting the electrical and mechanical performance of the sensor. We used finite element analysis (FEA) to model the sensor structure and studied the capacitance changes under various normal loading conditions to assess its sensitivity and distribution characteristics. Experimental results show that the sensor has good sensitivity and repeatability in the pressure range of 0 to 50 kPa. Additionally, we explored the effect of the addition of carbon black particles. It could be inferred that the added carbon black can enhance electrical properties due to its conductivity, which would be consequenced by the distribution optimization of Cu particles for carbon black's low density, and it can mechanically restore some flexibility up to nearly 20%. Through these studies, our work can provide theoretical support for the design and application of flexible pressure sensors.

Indexed as

capacitiveflexible sensorrelative permittivity modulationtactile sensor

Identifiers

PMID39943277
PMCPMC11820848

What Socratic holds

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LicenceCC BY
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.