Novel Solution for Multi-Phase Semi-Cylindrical Capacitive Sensors

Novel Solution for Multi-Phase Semi-Cylindrical Capacitive Sensors

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An accurate theoretical formulation is presented for a semi-cylindrical parallel plate capacitor, independent of the electrode dimensions.An approximate solution is also presented to relate the changes in capacitance with changing volume-ratio of the multi-phase dielectric filling of the capacitor.Two applications are considered to verify the proposed techniques.

In the first application, the calculated capacitance is compared with the measured capacitance of a healthy tree Basketball - Clothing - Womens trunk to identify the initial stage of pest infestation.In the second application, an approximate capacitance of a three-phase mixture, consisting of gas, oil and brine layers, are used to identify the phase-fraction of a petroleum carrying pipeline with a steady-state flow.The advantage and limitations of the proposed approximate method are studied.

In addition to logging and monitoring the oil supply, this simple method can electronically control multi-phase pipes with AEG IDK84451IB - 83cm Induction Hob with Integrated Hood - Black - 942 150 636 intravenous injections to collect postoperative fluids from the human body.