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Accuracy Analysis of Dissolved Oxygen Measurement System with Cypress PSoC Configurable Mixed Signal Array

In this paper the accuracy analysis of the proposed dissolved oxygen measurement system based on the Clark's cell and the PSoC configurable mixed signal array chip is performed. In that process critical sources of errors are determined and associated errors are measured. The temperature, as the most influential parameter of oxygen measurements, is analyzed in greater detail. Monitoring and regulation of sample temperature is crucial for precision oxygen concentration measurements. In order to achieve optimal accuracy level, system construction implications are discussed and averaging algorithm and two point calibra-tion methods are applied.

programmable system on chip; PSoC; acccuracy analysis

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