Self-driven triboelectric pressure sensor and preparation method thereof

A pressure sensor and triboelectric technology, applied in the direction of measuring fluid pressure through electromagnetic components, measuring fluid pressure, instruments, etc., can solve the problems of sacrificing sensitivity, narrow detection range of pressure sensor, mismatch between sensitivity and pressure detection range, etc., to achieve expansion The effect of increasing the pressure detection range, improving the deformation amount, and improving the ability to detect small pressure

Pending Publication Date: 2022-08-05
SUZHOU UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the detection range of existing high-sensitivity triboelectric pressure sensors is narrow, and expanding the pressure detection range usually sacrifices sensitivity
The mismatch between sensitivity and pressure detection range greatly limits the practical application of triboelectric pressure sensors

Method used

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  • Self-driven triboelectric pressure sensor and preparation method thereof
  • Self-driven triboelectric pressure sensor and preparation method thereof
  • Self-driven triboelectric pressure sensor and preparation method thereof

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Embodiment Construction

[0048] The embodiments of the present application are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. The present application can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the following embodiments and features in the embodiments may be combined with each other under the condition of no conflict. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within t...

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Abstract

The invention provides a self-driven triboelectric pressure sensor and a preparation method thereof. The self-driven triboelectric pressure sensor sequentially comprises a substrate, an electrode layer, a dielectric layer, a spacing layer, a friction layer and a shielding layer from bottom to top, the dielectric layer sequentially comprises a flexible substrate layer, an ionic gel material layer and a microstructure material layer from bottom to top, the ionic gel material layer is of a porous structure, and a plurality of upwards-protruding microstructures are formed on the upper surface of the microstructure material layer at intervals. The self-driven pressure sensor has ultra-high sensitivity and ultra-wide detection range under the condition that an external power source is not needed for power supply, tiny pressure can be recognized when large pressure is applied, the application range of the pressure sensor is widened, and when the pressure sensor is applied to an internet-of-things system, the pressure sensor can be applied to the internet-of-things system. The application range of the pressure sensor is expanded while the power consumption of the Internet of Things system is reduced.

Description

technical field [0001] The invention relates to pressure sensor technology, in particular to a self-driven triboelectric pressure sensor and a preparation method thereof. Background technique [0002] With the advent of the 5G era, IoT technology has also become more mature. The pressure sensor is one of the most important nodes to obtain information in the Internet of Things. Its signal output requires the test loop to continuously provide power input, but a complete Internet of Things system requires a very large number of sensor nodes, and the problem of power supply has become a constraint to its development. bottleneck. The self-driven pressure sensor can use external mechanical stimulation to convert into electrical signal output in real time, and judge the magnitude of external pressure by the magnitude of the electrical signal output. [0003] Piezoelectric sensors and triboelectric sensors are the existing mainstream self-driven pressure sensors. Although piezoel...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/00G01L9/00B32B33/00
CPCG01L1/005G01L9/00B32B33/00B32B2457/00
Inventor 文震孙旭辉高镇秋
Owner SUZHOU UNIV
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