AN IONIC FLOWMETER FOR MEASURING SMALL RATES OF GAS-FLOW

Citation
Dv. Morgan et Yh. Aliyu, AN IONIC FLOWMETER FOR MEASURING SMALL RATES OF GAS-FLOW, Measurement science & technology, 4(12), 1993, pp. 1479-1483
Citations number
5
Categorie Soggetti
Instument & Instrumentation",Engineering
ISSN journal
09570233
Volume
4
Issue
12
Year of publication
1993
Pages
1479 - 1483
Database
ISI
SICI code
0957-0233(1993)4:12<1479:AIFFMS>2.0.ZU;2-T
Abstract
A direct reading ionic discharge flowmeter capable of measuring rates of flow of gases from 0.30 mu g s(-1) to 0.20 mg s(-1) is described. T he meter uses a differential current and voltage measurement arrangeme nt. The meter functions best at a pressure of 4 x 10(2) Pa and has app lication for use with dry non-explosive gases. A semi-empirical model is devised to explain the theory of the instrument.