Proceedings of the Korean Society of Marine Engineers Conference (한국마린엔지니어링학회:학술대회논문집)
- 2001.05a
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- Pages.197-201
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- 2001
A Study on the Development of ppb Level Dissolved Oxygen Measuring Technology using Clark Cell
Clark Cell을 이용한 ppb Level 용존산소 측정기술 개발에 관한 연구
Abstract
Measuring of the dissolved oxygen is widely used for the environmental control of natural waters, sewage waste treatment, medical and biochemical studies, soil husbandry, food and drug process control, and prevention of corrosion in boilers. Especially, a power plants need special management for preventing accidents from corrosion, therefore, it is essential to measure the concentration of dissolved oxygen in real-time. In this paper we present a method of measuring dissolved oxygen very accurately up to ppb units. This method, called polarographic method, is based on the measures of the electric current generated by the oxidation process in cathode and de-oxidation process in anode, assuming that the amount of the current is proportional to the density of dissolved oxygen.
Keywords
- ppb level;
- Dissolved oxygen;
- Voltammetry;
- Electrochemical;
- Sensing algorithm;
- Power plant;
- On-line measurement;
- Electrode;
- Polarography;
- Analysis;
- Membrane;
- Clark cell;
- Diffusion current