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    how to calculate the electric relative permittivity of fluid or medium.

    Hi, I am confusing in calculating permitivity of the fluid. Permittivity differs from one fluid to another. Ɛ=ƐrƐ0. Since it is an electrical property combined with an electrical capacity, it is possible to measure it indirectly in a capacitive sensor. I have used capacitive sensor to measure...
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    Help need in analog circuit design to get phase and amplitude of two signals.

    Hi, I am generating sine signal with 125 KHz using micro controller and giving it to Capacitive(cylindrical shape) sensor. If the sensor out is low to read then i am using two amplification stages to increase signal amplitude. I am using multiplexer to select best signal from sensor out.  The...
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