Wearable electronic sensor for potentiometric and amperometric measurements (original) (raw)
2013, 2013 IEEE International Conference on Body Sensor Networks
To enable continuous monitor ing of electr ochemical sensor s outside the labor ator ies, ther e is a significant demand on electr ochemical measur ement systems to be miniatur ized. The paper pr esents a low-cost, por table miniatur e device for electr ochemical measur ements. The device consists of a 35mm x 20mm x 25mm wir eless tag, which enables potentiometr ic and amper ometr ic measur ement, and a base station for data acquisition. Potentiometr ic per for mance is evaluated using solid contact ion selective electr odes for pH and sodium. High sensitivity, r epeatability and fast r esponse time have been achieved. Amper ometr ic measur ement of hydr ogen per oxide shows that the measur ed cur r ent accur acy and sensitivity ar e compar able to that of a commer cial potentiostat. M or eover , the device can be used for lactate concentr ation sensing.
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