A device for sensing pulse condition based on PVDF piezoelectric film and its application method

Abstract

The invention belongs to the field of devices, and in particular relates to a device for sensing pulse condition based on a PVDF piezoelectric film and an application method thereof. The device includes a wearing part, a pressure-sensitive module, a Bluetooth module and a control module. The wearing part is composed of a wristband and a detection block. A pressure-sensitive module is embedded in the detection block. The pressure-sensitive module is in the shape of a flat cylinder. Shell, pvdf piezoelectric film, aluminum foil layer, super soft Ecoflex probe, small spring and lower shell; the electrical signal measured by the pressure sensitive module is sent to the control module by the bluetooth module remotely, so as to realize the detection of human pulse sensing. Adopting the device of the present invention can not only maximize the deformation, and under the same force, the pvdf piezoelectric film will undergo greater deformation to generate electrical signals, and can ensure that the pvdf piezoelectric film and the aluminum foil layer can immediately return to their original state after deformation , so that the electrical signal will not continue to weaken or even disappear.

Description

technical field [0001] The invention relates to the field of devices, in particular to a device for sensing pulse conditions based on a PVDF piezoelectric film and an application method thereof. Background technique [0002] With the rapid development of science and technology, wearable smart devices have quietly appeared in people's daily life, and the problem of people's difficulty in seeing a doctor has been further alleviated. However, people don't know anything about the diseases they suffer from, and doctors don't have time to educate patients about their diseases, so the contradiction between doctors and patients also develops. [0003] Moreover, most of the current wearable devices only measure the pulse wave of the human body through the pressure measurement module or the photosensitive module, and do not deeply involve the specific pulse condition. [0004] Traditional Chinese medicine mostly uses three parts of Cun, Guan and Chi to diagnose the pulse, and experie...

AI Technical Summary

Problems solved by technology

However, people don't know anything about the diseases they suffer from, and doctors don't have time to popularize patients' diseases, so the contradiction between doctors and patients also develops

[0003] And most of the current wearable devices only measure the pulse wave of the human body through the pressure measurement module or photosensitive module, and do not deeply involve the specific pulse condition.

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