New operational modes for the Ta2O5-based electrolyte conductance cell


Olthuis, W. and Smith, A. and Zalm, R.A.J. van der and Bergveld, P. (1994) New operational modes for the Ta2O5-based electrolyte conductance cell. Sensors and Actuators B: Chemical, 18-19 (1-3). pp. 65-68. ISSN 0925-4005

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Abstract:Based on the recently presented conductance cell, two specific operational modes are proposed. In the oscillator mode, the conductivity of the electrolyte determines the frequency of an oscillator, experimentally obtaining a shift from 10 to 27 kHz for a KCl concentration range from 0.5 to 100 mM. In the pole mode, an inductor is placed in series with the cell, giving the real electrolyte resistance at the resonance frequency of the circuit, resulting in a linear relation between the log of the output voltage from 4 to 1000 mV as a function of the log of the KCl concentration, ranging from 0.2 to 100 mM.
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Copyright:© 1994 Elsevier Science
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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