一种用于测量呼吸流量的硅双向流量传感器。

A silicon bidirectional flow sensor for measuring respiratory flow.

作者信息

van Putten M J, van Putten M H, van Putten A F, Pompe J C, Bruining H A

机构信息

Department of Neurology, Academic Hospital Leiden, The Netherlands.

出版信息

IEEE Trans Biomed Eng. 1997 Feb;44(2):205-8. doi: 10.1109/10.552250.

DOI:10.1109/10.552250

PMID:9214800

Abstract

We describe a solid-state, silicon integrated, bidirectional flow sensor for respiratory applications. The sensor is a thermal vector sensor. The electronic circuitry for obtaining bidirectional sensitivity is presented together with actual application to a healthy volunteer put on mechanical ventilation. The sensor's input flow range is from -60 to +60 L/min, and its rise-time is < or = 40 ms and fall-time is < or = 60 ms. The effect of changes in gas composition as used in mechanically ventilated patients on the sensor output signal are estimated to be less than 2%. The temperature sensitivity is about -1.5% per degree Celsius.

摘要

我们描述了一种用于呼吸应用的固态硅集成双向流量传感器。该传感器是一种热矢量传感器。介绍了用于获得双向灵敏度的电子电路以及在接受机械通气的健康志愿者身上的实际应用。该传感器的输入流量范围为-60至+60升/分钟，其上升时间≤40毫秒，下降时间≤60毫秒。据估计，机械通气患者所使用的气体成分变化对传感器输出信号的影响小于2%。温度灵敏度约为每摄氏度-1.5%。