北京生物医学工程2011，Vol.30Issue(3)：227-232,6.DOI:10.3969/j.issn.1002-3208.2011.03.02
基于薄膜压力传感器的脉搏信号测试系统
An Instrument for Testing Pulse Signals Based on Thin Film Pressure Sensor
摘要
Abstract
The pulse wave signals contain plenty of information which conveys the health status of human body. To acquire and analyze the pulse signals, we developed a kind of pressure sensors, by adopting soft-touch metal dome craftsmanship. The oscillator amplifier 555 and V-f conversion circuit were utilized to transform the pressure signals into electric signals Then the system effectively acquired the pulse signals by following filter circuit, band stop circuit, amplifier circuit and the method of interference. Experiments of performance test to pressure sensor and oscilloscope proved that the test system based on thin film pressure sensor had reliable performance and could be used to study the pulse wave by the collected pulse signals shown on the computer through the serial communication expansion module of the oscilloscope or the data acquisition card of LABVIEW.关键词
脉搏信号/薄膜压力传感器/信号调理电路Key words
pulse signal/thin film pressure sensor/signal processing circuit分类
信息技术与安全科学引用本文复制引用
邹建,钱波,卢平,应苑松..基于薄膜压力传感器的脉搏信号测试系统[J].北京生物医学工程,2011,30(3):227-232,6.基金项目
重庆大学"211工程"三期建设项目(S-09112)资助 （S-09112）
