A Simple Dissolved Oxygen Sensor using Low-Cost Visible Spectro Sensor
Tran Thi Ngoc Huyen1, Tran Khac Duy2, Nguyen Minh Trang3, Luong Vinh Quoc Danh4, Anh Dinh5
1Tran Thi Ngoc Huyen, Department of Electronics and Telecommunication Engineering, College of Engineering, Cantho University, Can Tho, Vietnam, Asia.
2Tran Khac Duy, Department of Electronics and Telecommunication Engineering, College of Engineering, Cantho University, Can Tho, Vietnam, Asia.
3Nguyen Minh Trang, Department of Electronics and Telecommunication Engineering, College of Engineering, Cantho University, Can Tho, Vietnam, Asia.
4Luong Vinh Quoc Danh, Department of Electronics and Telecommunication Engineering, College of Engineering, Cantho University, Can Tho, Vietnam, Asia.
5Anh Dinh, Department of Electrical and Computer Engineering, University of Saskatchewan, Saskatoon, Canada.
Manuscript received on 03 May 2019 | Revised Manuscript received on 15 May 2019 | Manuscript Published on 10 July 2019 | PP: 31-34 | Volume-8 Issue-7C2 May 2019 | Retrieval Number: G10080587C219/19©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open-access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: Dissolved Oxygen sensor is used mainly in aquaculture industries and environmental sectors to measure the concentration of oxygen dissolved in water. The level of dissolved oxygen in water strongly affects the growth of organisms in aquaculture. There are many methods to measure the concentration of dissolved oxygen in water including colorimetric, titrimetric, and polarographic. Newly-developed technique uses optical principle to measure the reaction of oxygen to the fluorescent dye and the concentration of oxygen is calculated based on the Stern-Volmer equation. This work develops a very simple optical sensor based on this principle but uses extremely low-cost, off-the-shelf optical components for detection. The heart of the sensor is the AS7262 6-Channel Visible Spectral ID Device made by AMS. The sensor was built and tested against the commercial devices made by Extech (Model 407510). Preliminary results show a promising device which is very low cost, simple, low maintenance, and easy to use in the field to support aquaculture industries and environmental agencies.
Keywords: Dissolved Oxygen, Sensor, Visible Spectrometer, Low-Cost Sensor.
Scope of the Article: Sensor Networks, Actuators for the Internet of Things