Design of a budget-based pH meter
作者:
JimJamieson,
期刊:
Electronic Systems News
(IET Available online 1989)
卷期:
Volume 1989,
issue 2
页码: 29-32
年代: 1989
DOI:10.1049/esn.1989.0041
出版商: IEE
数据来源: IET
摘要:
This article gives a description of the design, construction and performance of a home-built pH meter comprising pH electrode, signal-conditioning system and BBC Microcomputer. Unlike conventional meters, its hardware is kept very simple. Most of the signal conditioning is achieved by software; the hardware part consists of two elements only, a stable voltage reference and a very-highimpedance voltage follower.
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