PVDF array tactile sensor for measuring pulse

Abstract

The invention discloses a PVDF array tactile sensor which can fully collect information and accurately measure pulse. The sensor comprises a metal substrate, a central PVDF thin film which is arranged at a central area of the metal substrate, and a first PVDF piezoelectric thin film, a second PVDF piezoelectric thin film, a third PVDF piezoelectric thin film and a forth PVDF piezoelectric thin film which are arranged at an edge area of the metal substrate. Compared with the prior art, the PVDF array tactile sensor for measuring the pulses has the following advantages: a symmetrical and annular structure with a circular PVDF piezoelectric thin film at the center and four arc-shaped PVDF piezoelectric thin films at the edges is used, thus the position angle of a pulse sensor on the pulse-feeling and palpation part of the wrist does not affect the signal collection, and the pulse information can be fully and accurately measured.

Description

technical field [0001] The invention relates to a pulse sensor, in particular to a PVDF array tactile sensor for measuring pulse. Background technique [0002] For more than two thousand years, Chinese medicine has accumulated rich experience in pulse diagnosis, which is a treasure of the Chinese nation. However, due to the limitation of historical conditions, various pulse conditions in traditional Chinese medicine can only be described qualitatively, and Duobi is regarded as a natural phenomenon. For example, the Xianmai is compared to "like a bow string", and the floating mai is compared to "like water drifting wood", etc. Because it can only be described qualitatively, and different doctors have different understandings of natural landscapes, the technique of pulse detection is complicated and difficult to master, and the techniques of pulse detection are also different, which leads to differences in pulse analysis. With the development of society, there is an urgent n...

AI Technical Summary

Problems solved by technology

Existing pulse sensors all adopt a single-point measurement method. Although this single-point measurement method is simple and easy to implement, the deviation of the placement position of the pulse sensor on the wrist will have a great impact on the measurement signal, and the pulse of this single-point measurement None of the sensors can simulate the three diagnostic methods during palpation

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