Electrochemical principle-based self-power generating type pressure sensor and preparation method thereof

A pressure sensor, electrochemical technology, applied in the direction of measuring fluid pressure, instruments, measuring devices, etc., can solve problems such as performance degradation, and achieve the effects of reducing power consumption, fast response speed, and wide application range

Active Publication Date: 2019-05-21
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of sensor is susceptible to performance degradation due to environmental factors (such as moisture, air pressure, etc.) during actual work.

Method used

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  • Electrochemical principle-based self-power generating type pressure sensor and preparation method thereof
  • Electrochemical principle-based self-power generating type pressure sensor and preparation method thereof
  • Electrochemical principle-based self-power generating type pressure sensor and preparation method thereof

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Effect test

Embodiment 1

[0037] see figure 1 , figure 2 , image 3 , Figure 4 and Figure 5 , the self-generating pressure sensor based on the electrochemical principle provided by the first embodiment of the present invention, the pressure sensor includes a sensing structure, a reference electrode, a current detection component and a processing and display component. The current detection component connects the sensing structure and the reference electrode to form a circuit. When the sensing structure is placed in the electrolyte to monitor the pressure, the dynamic pressure of the electrochemically available area of ​​the working electrode 2 in the electrolyte Reduced under the action of , the sensing structure produces a potential change when the surface double layer balance charge of the working electrode 2 remains unchanged, thereby generating electrical energy output, and generating a current in the circuit, the current detection A component is used to detect the current and transmit the d...

Embodiment 2

[0063] see Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10 , the self-generating pressure sensor based on the electrochemical principle provided in the second embodiment of the present invention, the structure of the pressure sensor is basically the same as the self-generating pressure sensor based on the electrochemical principle provided in the first embodiment of the present invention, the difference is That is, the pressure sensor provided by this embodiment can be suitable for fresh water environment, and its sensing structure is accommodated in the sealed box 8, and the working electrode and the counter electrode are respectively connected to the outside world through waterproof wires 9, and the sealed box 8 A through hole is opened on one side adjacent to the pressing plate, and the through hole is used to accommodate the force conducting member 7 , and one end of the force conducting member 7 passes through the through hole and abuts against the pressin...

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Abstract

The invention belongs to the technical field of pressure sensors and discloses an electrochemical principle-based self-power generating type pressure sensor and a preparation method thereof. The pressure sensor comprises a sensing structure; the working environment of the sensing structure is an electrolyte environment; the sensing structure is used for converting pressure to be measured into electric energy; and the pressure sensor obtains current pressure according to the relationship between current generated by the converted electric energy and corresponding pressure, and current at present, and therefore, the real-time monitoring of the pressure to be measured is realized; the sensing structure realizes self-power generation based on an electrochemical principle; the sensing structurecomprises an interlayer structure, a working electrode and a counter electrode; and the working electrode and the counter electrode are disposed in the interlayer structure and are respectively arranged on adjacent interlayers. The pressure sensor of the invention has the advantages of no energy consumption, high response speed and strong liquid environment applicability.

Description

technical field [0001] The invention belongs to the technical field related to pressure sensors, and more specifically relates to a self-generating pressure sensor based on electrochemical principles and a preparation method thereof. Background technique [0002] In the field of ocean exploration, pressure sensors, as an important monitoring tool, can assist in monitoring changes in underwater pressure and improve hydrological information in regional sea areas. At present, pressure sensors have been widely used in the fields of sonar detection, tide monitoring, tsunami warning, underwater navigation and ocean survey. Among them, pressure sensors can be divided into four categories according to the sensing mechanism: piezoresistive, capacitive, piezoelectric, and triboelectric pressure sensors. The piezoresistive pressure sensor uses the resistance change of the material under different pressures to realize pressure detection; the capacitive pressure sensor is a pressure sen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L11/00G01L19/00
Inventor 徐鸣张蒙蒙邓泽明
Owner HUAZHONG UNIV OF SCI & TECH
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