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Flexible resistance sensor

A resistance sensor, flexible electrode technology, applied in the direction of instruments, measuring devices, measuring force, etc., can solve the problems of not easy to recover, easy to deform, easy to collapse, etc., to achieve the effect of not easy to collapse, not easy to deform, and low cost

Inactive Publication Date: 2020-10-13
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two states are easy to deform and not easy to recover
On the other hand, due to the micron-scale size of the columnar structure, it is easy to collapse during the preparation process and use

Method used

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Embodiment Construction

[0024] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] Such as Figure 1-5 As shown, the high-sensitivity flexible resistance sensor provided by the present invention includes a PDMS flexible electrode doped with carbon nanotubes with a columnar microstructure stacked up and down together, and the PDMS flexible electrode is made in the following manner:

[0026] First, a mixed PMDS sample is prepared. Due to the small Young's modulus of the commonly used PDMS DC184, there may be some difficulties in the preparation of the columnar microstructure. Since the height of the columnar structure will affect the sensitivity of the sensor, the mixed rubber samples of PDMS DC184 and PDMS SE1700 should be prepared according to the desired s...

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PUM

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Abstract

The invention discloses a flexible resistance sensor. The flexible resistance sensor comprises a carbon nanotube doped PDMS flexible electrode body with a columnar microstructure, and the PDMS flexible electrode body is manufactured in the following mode: mixing PDMS DC184 and PDMS SE1700 according to a preset proportion to be manufactured into PMDS mixed glue, and enabling the carbon nanotube toadoping with the PMDS mixed glue; uniformly coating the PMDS mixed glue doped with the carbon nanotubes on a glass slide twice, carrying out curing treatment after the first coating is finished, and continuing uniform coating to form a preliminary electrode of the resistance sensor; putting a PCET template with holes on the PDMS subjected to secondary coating, then performing vacuumizing, enablingthe PDMS to enter the holes of the PCET template, and forming a columnar microstructure after curing; and washing off the PCTE template to form the PDMS flexible electrode. The flexible resistance sensor can reach an ideal height, the compressibility is improved, meanwhile, the flexible resistance sensor has good stability and is not prone to collapse, and the excellent sensitivity of the flexible resistance sensor is kept.

Description

technical field [0001] The invention relates to the technical field of flexible electronics, in particular to a flexible resistance sensor. Background technique [0002] In recent years, the field of flexible electronics has developed rapidly. Flexible sensors are becoming important devices for future applications in robotics, in vitro diagnostics, and energy harvesting. According to the latest advances in robotic systems, prosthetics, and wearable medical devices, it has become a research hotspot for experimenters to devote themselves to realizing high-sensitivity flexible sensors with simple methods. Moreover, while the field of flexible electronics is developing rapidly, it also requires the advancement of electronic device preparation processes. [0003] Generally, a flexible resistive sensor consists of an upper electrode and a lower electrode, and uses a soft, wear-resistant flexible substrate and a special micro / nano-structured conductive sensing material to achieve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/22
CPCG01L1/2287
Inventor 邹强马卓敏
Owner TIANJIN UNIV
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