一种用于快速响应在线呼出气体测量的干燥器。

A dryer for rapid response on-line expired gas measurements.

作者信息

Deno N S, Kamon E

出版信息

J Appl Physiol Respir Environ Exerc Physiol. 1979 Jun;46(6):1196-9. doi: 10.1152/jappl.1979.46.6.1196.

DOI:10.1152/jappl.1979.46.6.1196

Abstract

A dryer is described for use in on-line breath-by-breath gas analysis systems. The dryer continuously removes water vapor by condensation and controls the sample gas at 2 degrees C dew-point temperature or 5 Torr water vapor partial pressure. It is designed to operate at gas sampling flow rates from 0.5 to 1 1.min-1. The step-response time for the described system including a Beckman LB-2 CO2 analyzer, sampling tubing, and dryer is 120 ms at 1 l.min-1. The time required for gas samples to transport through the dryer is 105 ms at a gas sampling-flow rate of 1 l.min=1.

摘要

描述了一种用于在线逐次呼吸气体分析系统的干燥器。该干燥器通过冷凝连续去除水蒸气，并将样气控制在露点温度2摄氏度或水蒸气压分压5托。它设计用于在0.5至1升/分钟的气体采样流速下运行。所述系统（包括贝克曼LB - 2二氧化碳分析仪、采样管和干燥器）在1升/分钟时的阶跃响应时间为120毫秒。在气体采样流速为1升/分钟时，气体样品通过干燥器所需的时间为105毫秒。