Wearable pressure sensor based on carbon nanotube film and production method thereof

Abstract

The invention belongs to the technical field of a human body wearable pressure sensor, and discloses a wearable pressure sensor based on a carbon nanotube film and a production method thereof. The pressure sensor comprises a sensing mechanism comprising a sealed box, a porous ceramic plate, a working electrode, a counter electrode and a flexible polymer film, the porous ceramic plate is provided with a groove, and the counter electrode is disposed in the groove; the working electrode is disposed on the porous ceramic plate and covers the groove; the groove is used for accommodating an electrolyte; the flexible polymer film is disposed on the sealed box for sealing the porous ceramic plate, and the working electrode and the counter electrode are sealed in the sealed box; The pressure sensoruses the pressure of the carbon nanotube film to induce the change characteristic of the electrochemical potential to convert the pressure energy to electrical energy, and realizes the real-time monitoring of the pressure to-be-measured. The wearable pressure sensor has good environmental adaptability, can be applied to water environment, and has good accuracy.

Description

technical field [0001] The invention belongs to the related technical field of human body wearable pressure sensors, and more specifically relates to a wearable pressure sensor based on a carbon nanotube film and a manufacturing method thereof. Background technique [0002] In the field of human motion and physiological signal detection, pressure changes, as an important information, can be used to record human motion and analyze physiological health. And monitoring and human bionics have broad application scenarios. Real-time monitoring of human motion and physiological signals helps to more accurately assess human health and provide early warning of diseases. Therefore, smart wearable pressure sensors have received extensive attention and development. [0003] At present, smart wearable pressure sensors can be divided into four categories according to different working mechanisms: resistive, capacitive, piezoelectric and triboelectric. Resistive and capacitive sensors ca...

AI Technical Summary

Problems solved by technology

However, the moisture in the environment will cause the charge in the triboelectric pressure sensor to dissipate and degrade its sensing performance, that is, the working stability will decrease, and the human body will inevitably come into contact with the moisture environment in daily activities, such as the rainy season environment, daily cleaning, etc. , water navigation and drifting swimming, etc., which limit the application of triboelectric pressure sensors

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