机械制造与自动化Issue(5)：185-187,218,4.DOI:10.19344/j.cnki.issn1671-5276.2017.05.048
呼吸信号检测用PVDF压电薄膜传感器设计
Design of Respiratory Signal Detection System with PVDF Piezoelectric Film Sensor
摘要
Abstract
This ppaer makes a study of the respiratory sensor with PVDF piezoelectric film, describes its importance for human be-ings and its procedures of design and fabrication. And designs its corresponding conditioning circuits according to the characteristics of the respiratory signals. The respiratory signal is achieved by detecting the bending deformation derived from the airflow between the nose and mouth during expiration and inspiration. Soft threshold algorithm based on wavelet transformation is adopted in cancel-ling the noise. Then the peaks were exactly determined by setting voltage threshold of peaks and the interval of two adjacent peaks. In this way, the number of breaths is obtained. Experimental results reveal that the detection system with PVDF piezoelectric film sensor can be used to measure stable respiratory signals.关键词
PVDF压电薄膜传感器/呼吸信号/检测系统Key words
PVDF piezoelectric film sensor/respiratory signal/detection system分类
信息技术与安全科学引用本文复制引用
徐智俊,韩国强..呼吸信号检测用PVDF压电薄膜传感器设计[J].机械制造与自动化,2017,(5):185-187,218,4.基金项目
国家自然科学基金项目资助(51205063) （51205063）
福建省教育厅项目(JA14032) （JA14032）
