Based on the discovery that electrolytic currents vary with changes in flow velocity, the authors have developed the "cell flowmeter". The principal applicability of the cell flowmeter has been demonstrated by experimental results revealing: (1) Variation of electric resistance between electrodes with changing flow velocity, (2) responsiveness to oscillations in flow rate, (3) distinctly difficult patterns of records obtained from turbulent and laminar velocity profiles, (4) response to artificial disturbances applied to the flow at near critical Reynolds number. The power spectral density of longitudinal velocity fluctuations was analyzed for a pipe flow of water, and proved to resemble that obtained for air by other authors. The cell flowmeter has advantage of simplicity, high sensitivity and above all applicability to ordinary tap water.
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