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What is the advantage of an optical sensor over the traditional electrochemical sensor?

April 26, 2017advantage electrochemical optical sensor traditional

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What is the advantage of an optical sensor over the traditional electrochemical sensor?

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The advantage of an optical oxygen sensor over its counterpart electrochemical one is determined by their intrinsic principles: the electrochemical sensor measures the current generated by reduction of oxygen at the working electrode, therefore it consumes oxygen; in contrast, the optical sensor does not consume oxygen.