excitation methods

Is The Rotor Excitation Current AC Or DC?

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Is The Rotor Excitation Current AC Or DC? This Direct Current (DC) is called excitation current. Which is required to generate magnetic flux in the rotor circuit. 2. What is rotor excitation? An electric generator or electric motor consists of a rotor spinning in a magnetic field. … The process of generating a magnetic field

What Is The Need For Excitation Circuits In Sensor Interface?

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What Is The Need For Excitation Circuits In Sensor Interface? The excitation magnitude at the sensor must be enough so that the smallest change to be measured results in a voltage change that exceeds the noise, offset and drift of the system. If large dc errors and low-frequency noise are expected, ac excitation is useful.