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基于强迫振荡技术的传感器测量电路的设计

更新时间:2020-06-20 08:35:18 大小:215K 上传用户:songhuahua查看TA发布的资源 标签:强迫振荡技术传感器 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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设计一种基于强迫振荡技术的呼吸阻力数据采集系统的传感器测量电路模块。采用一个三通分流器一端分别固定连接着压力、流量传感器,其中与流量传感器必须是水平连通的,一端连接呼吸机,男一端三通分流口留着用于连接强迫振荡发生器。压力传感器在使用之前要进行输入与输出关系的线性定标工作。最后分别在两个传感器输出端设计一个低通滤波器用于滤除各种杂波成分。试验结果表明,该传感器测量电路模块能有效地实时监测到经受试者呼吸系统反馈的振荡压力与振荡流量信号,并且制作简单。

A sensor measuring circuit of data acquisition of respiratory impedance based on forced oscillation technique was designed. In this circuit, Press sensor and Flow sensor which must be connected horizontally was connected at one port of a T- branch, respirator was connected at another port, the forced oscillation generator was connected at the third port. The linear calibra- tion work between the input and output ports was made before the usage of press sensor. Finally, two LPF ( Low Pass Filter) were designed in order to eliminate all kinds of clutter constituents at the output terminals of two sensors. Test result shows that oscillation press and flow signal feedback by respiratory systems of subjects were effecti...

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基于强迫振荡技术的传感器测量电路的设计.pdf 215K

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