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A low-cost, portable optical sensing system with wireless communication compatible of real-time and remote detection of dissolved ammonia

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posted on 2017-01-26, 14:34 authored by Shijie Deng, William Doherty, Michael AP McAuliffe, Urszula Salaj-Kośla, Liam Lewis, Guillaume Huyet
A low-cost and portable optical chemical sensor based ammonia sensing system that is capable of detecting dissolved ammonia up to 5 ppm is presented. In the system, an optical chemical sensor is designed and fabricated for sensing dissolved ammonia concentrations. The sensor uses eosin as the fluorescence dye which is immobilized on the glass substrate by a gas-permeable protection layer. A compact module is developed to hold the optical components, and a battery powered micro-controller system is designed to read out and process the data measured. The system operates without the requirement of laboratory instruments that makes it cost effective and highly portable. Moreover, the calculated results in the system can be transmitted to a PC wirelessly, which allows the remote and real-time monitoring of dissolved ammonia.

History

Publication

Phontonic Sensors;16 (2), pp. 107-114

Publisher

SpringerOpen

Note

peer-reviewed

Other Funding information

EI, SFI

Language

English

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