一种用于特殊气体的简易流量计。

A simple flowmeter for unusual gases.

作者信息

Farquhar I, Eldridge P

机构信息

University Department of Anaesthesia, University Hospital, Nottingham.

出版信息

Br J Anaesth. 1990 Jan;64(1):113-6. doi: 10.1093/bja/64.1.113.

DOI:10.1093/bja/64.1.113

PMID:2137347

Abstract

A flowmeter is described which may be used to measure gas flow in experimental situations. It may be adapted for use with any gas or gas mixture and be used to provide flows as small as 50 ml min-1. A mercury-in-glass manometer (sphygmomanometer) is used to measure the gas pressure proximal to a flow restrictor (consisting of a hypodermic needle hub) and it is this pressure head which, for a given gas, dictates the flow produced. This device may be produced at minimal cost in any hospital, is easy to calibrate and accurate.

摘要

本文描述了一种流量计，可用于测量实验环境中的气体流量。它适用于任何气体或气体混合物，可提供低至50毫升/分钟的流量。使用玻璃汞压力计（血压计）测量限流装置（由皮下注射针头接头组成）近端的气体压力，对于给定的气体，正是这个压头决定了产生的流量。该装置在任何医院都可以以最低成本制造，易于校准且准确。