Open AccessHuman Pulse Signal Acquisition System Based on PVDF Piezoelectric Film
Author(s) -
Bing Zhou,
Xinan Wang,
Qiuping Li,
Changpei Qiu,
Jie He,
Yubo Zhu,
Hu Wang
Publication year - 2021
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1924/1/012019
Subject(s) - polyvinylidene fluoride , piezoelectricity , pulse (music) , signal (programming language) , materials science , amplifier , charge amplifier , data acquisition , voltage , electronic engineering , software , filter (signal processing) , process (computing) , acoustics , piezoelectric sensor , computer science , electrical engineering , engineering , optoelectronics , operational amplifier , polymer , physics , composite material , operating system , cmos , programming language
Nowadays, traditional Chinese medicine (TCM) is attracting more attention. As the most complete methods of pulse diagnosis, the method named ‘three regions nine subdivisions’ has come to the fore. It is important to collect accurate pulse signals in this way. Hence a pulse signal acquisition system is developed, which includes a pulse sensor based on PVDF (Polyvinylidene fluoride) piezoelectric film, charge amplifier, low-pass filter, voltage amplifier, voltage follower, and a software system based on LabVIEW for controlling the acquisition process and storing data. And PVDF piezoelectric film has suitable performance for this system which as a new kind of polymer piezoelectric material. Finally, the experiment results demonstrate that the system can extract effective pulse signals without heavy pressure, laying a solid foundation for the subsequent analysis on pulse signals.