Design of High Precision and Low Drift PH Value Online Monitoring Instrument

Zhao Huan, Shu-guang Zhang, Xue-liang Zhao and Dong-xuan Wang

International Journal of Sciences, 2017, vol. 6, issue 02, 55-60

Abstract: The geological storage of carbon dioxide is a practical and effective method to reduce the greenhouse effect,In order to prevent the leakage of carbon dioxide bring about a serious impact on the environment, the need to carry out in situ online monitoring of pH value to determine the dynamics of underground carbon dioxide.In this paper,a high precision and low drift pH value online monitoring instrument based on temperature compensation is designed with MSP430F5438 as the core.The software flow chart and the relationship the pH value,the electrode signal and the temperature of the measured liquid,the hardware structure of the instrument and software process are introduced.By comparing pH standard solution and field water sample test, the measurement accuracy of the instrument is about 0.05pH,this instrument can meet the needs of online monitoring,have been used for engineering monitoring and have a wide range of application prospects.

Keywords: pH value; Aquifer; MSP430F5438; Dual-channel synchronous sampling; Digital filter (search for similar items in EconPapers)
Date: 2017
References: Add references at CitEc
Citations:

Downloads: (external link)
https://www.ijsciences.com/pub/article/1196 (text/html)
https://www.ijsciences.com/pub/pdf/V62017021196.pdf (application/pdf)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:adm:journl:v:6:y:2017:i:2:p:55-60

Ordering information: This journal article can be ordered from
https://www.ijsciences.com/payment_guide.php

DOI: 10.18483/ijSci.1196

Access Statistics for this article

More articles in International Journal of Sciences from Office ijSciences Alkhaer Publications Manchester M8 8XG England.
Bibliographic data for series maintained by Staff ijSciences ().