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Working electrode based on film nested structure and electrochemical pressure sensor

A pressure sensor, working electrode technology, applied in pressure sensors, sensors, electrolytic capacitors, etc., can solve the problem of not being able to completely cover the pressure range, and achieve the effect of high pressure detection range and sensitivity, and large specific capacitance

Active Publication Date: 2020-08-11
HUAZHONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing electrochemical pressure sensor has a detection range of 10Pa-300kPa and a sensitivity of 3.4kPa -1 , cannot fully cover the above pressure range of human activities

Method used

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  • Working electrode based on film nested structure and electrochemical pressure sensor
  • Working electrode based on film nested structure and electrochemical pressure sensor
  • Working electrode based on film nested structure and electrochemical pressure sensor

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Embodiment Construction

[0045] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and 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. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0046] The electrochemical pressure sensor based on the film nesting structure provided by the present invention is suitable for the electrolyte environment. Under the action of external pressure, the electrochemically available area of ​​the working electrode changes, which in turn causes the electrochemical double layer capacitance to change. When the balance charge remains unchanged, the p...

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Abstract

The invention belongs to the related technical field of electrochemical pressure sensing, and discloses a working electrode based on a film nested structure and an electrochemical pressure sensor. Theworking electrode comprises a first thin film material and a second thin film material, and the first thin film material and the second thin film material are stacked. The first thin film material and the second thin film material are both materials capable of forming double electric layers together with electrolyte in a working environment, and the surface density of one of the first thin film material and the second thin film material and the specific capacitance of the double electric layers formed by the electrolyte are both larger than those of the other thin film material and the electrolyte. The working electrode can be used for assembling an electrochemical pressure force sensor, pressure energy is converted into electric energy through the pressure-induced electrochemical potential change characteristic of a two-dimensional film, high-sensitivity pressure detection in a wide range can be achieved due to the structural advantages, and then real-time distribution monitoring ofmulti-point pressure is achieved.

Description

technical field [0001] The invention belongs to the technical field of electrochemical pressure sensing, and relates to a working electrode and an electrochemical pressure sensor based on a film nesting structure, more specifically, to a film nesting structure and an electrochemical sensor assembled based on the nesting structure. Pressure sensors, and their applications in human motion. Background technique [0002] Various health monitors have become indispensable instruments in the medical field. Doctors can use these monitoring instruments to better understand the physical condition of patients and deal with emergencies at the first time. Nowadays, due to people's increasing emphasis on health, health monitors are no longer limited to use in medical settings, but have appeared in people's daily life. [0003] At present, ordinary people can often be seen wearing smart bracelets with heart rate monitoring. Health bracelets on the market are usually based on the transmis...

Claims

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Application Information

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IPC IPC(8): H01G11/26H01G11/30H01G11/00A61B5/024A61B5/22
CPCA61B5/02444A61B5/22A61B5/224A61B5/4519A61B5/4528A61B2562/0247H01G11/00H01G11/26H01G11/30
Inventor 徐鸣田蜜
Owner HUAZHONG UNIV OF SCI & TECH
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