Pulse feeling system based on pressure sensor

Abstract

The invention belongs to the technical field of pulse feeling systems, and particularly relates to a pulse feeling system based on a pressure sensor. The three groups of graphene micro-strain sensors are independently arranged in the outer shell and are used for detecting characteristic information of pulse waves; the three groups of independently arranged pressurizing assemblies are used for applying force to the graphene micro-strain sensor; according to the pulse feeling system based on the pressure sensor, the ultrasonic transducer and the piezoelectric film are combined with the signal amplification circuit, and the piezoelectric film is light, flexible, easy to prepare, good in impedance coupling with human tissue, capable of being tightly attached to the skin, low in mechanical quality factor, small in damping and low in density, has the broadband characteristic and meets the frequency characteristic of pulse signals; and the pulse signal is not depolarized in a very high alternating electric field, so that the pulse signal is not distorted when passing through the film, the voltage change value can be more accurately and reliably obtained, and the human body pulse signal can be more accurately obtained.

Description

technical field [0001] The invention belongs to the technical field of pulse diagnosis systems, and in particular relates to a pressure sensor-based pulse diagnosis system. Background technique [0002] In the social environment with over 100 million elderly population in the country, in the market environment of national health that pursues higher quality personal health, and in the technical environment of further development of telemedicine information transmission technology, the data collector assisted by pulse diagnosis of traditional Chinese medicine has a wide range of applications. The use of the pulse diagnosis instrument is mainly reflected in the realization of the objectification of pulse diagnosis in traditional Chinese medicine. Pulse diagnosis is one of the four diagnostic methods in traditional Chinese medicine, and it is a unique diagnostic method. In the existing life, the pulse diagnosis instrument is used to detect patients, but the existing sensors hav...

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Problems solved by technology

In the existing life, the pulse diagnosis instrument is used to detect patients, but the existing sensors have low sensitivity, high power consumption, and large volume, so they take up a large space when used;

[0003] The authorized announcement number CN211187202U authorized in China on August 07, 2020 is a pulse diagnosis instrument based on graphene film flexible pressure sensor, which uses graphene sensors and airbags to detect the patient's pulse; The output voltage does not change significantly, and it is difficult to obtain the human pulse signal; in view of the problems exposed in the use of the current pulse diagnosis system, it is necessary to improve and optimize the structure of the pulse diagnosis system

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