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气体流量计是与工农业、国防、生态环境以及人民健康有密切关系的许多部门在科研、教学和生产中经常使用的计量仪表。根据需要,我们曾设计了一些结构简单,可以用实验室普通材料自行装配的气体流量计,并对其标定方法作过一些摸索(见参考文献)。本文介绍的简易皂膜法流量标定装置,以压缩气气室(球胆)和打气球(见图1)或双连球(见图2)作为气源,代替了同种常用装置中的钢瓶或气体压缩机,标定不同量程的皂膜计可以用移液管或碱式滴定管改制,也可以不经改制直接用
Gas flowmeter is a measuring instrument frequently used in scientific research, teaching and production in many departments closely related to industry and agriculture, national defense, ecological environment and people’s health. According to our needs, we have designed gas meters that have a simple structure and can be assembled by using common laboratory materials. We also made some exploration on the calibration methods (see references). This article describes the simple soap membrane flow calibration device to compressed air chamber (bladder) and balloon (see Figure 1) or double ligation (see Figure 2) as a gas source, instead of the same kind of device cylinder Or gas compressors, calibration of different ranges of soap film meter can be used pipette or burette restructuring, can also be used without modification directly