Questions tagged [eddy-current]
The eddy-current tag has no usage guidance.
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Modelling an eddy current sensor
An eddy current sensor is modeled as an air core transformer with shorted secondary:
simulate this circuit – Schematic created using CircuitLab
According to Kirchoff's laws, the total voltages ...
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Attenuating a signal from a eddy current sensor for an ADC
I have a eddy current sensor, in a 7200 Proximity Transducer System, with a voltage output of -18V to -24V. My ADC has a max input range of +10V. I need a way to step the output signal down so I can ...
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Do eddy currents in a rotor core of an induction motor create torque proportional to the coil current of a squirrel cage?
In a rotor of an induction motor, the core plates and wire coil conductors have non-zero thicknesses. Therefore, eddy currents non-zero too. And they approximately proportional to the coil current of ...
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Why can domestic induction stoves heat aluminium tape, but not aluminium pans?
Domestic induction stoves can't be used with thick aluminium or copper pans, but when I try to heat aluminium tape it does get hot.
Can someone explain why this is the case?
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How Should I Model Eddy Currents in a Magnetic Core?
simulate this circuit – Schematic created using CircuitLab
I'm primarily a VHDL and DSP guy, so I apologize in advance if this question is dumb.
I have wire wrapped around a magnetic core. The ...
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How do steel laminations reduce eddy current losses in a transformer?
All online materials I have read so far state that laminations reduce eddy currents but how is this so? I mean why would currents be smaller this way than having a big block of unlaminated iron core ...
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Why are induction motor cores laminated to prevent eddy currents?
The permeable iron alloy cores of induction motor rotors are formed from thin laminated sheets, designed to prevent eddy current flow and thus "reduce losses", but isn't the whole point of ...
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