I am not sure if something similar was asked here before.. but anyways...
I am trying to measure energy spent by CPU performing some task on embedded platform running Linux (like moving a file, or compressing something.. etc).
At this moment, I have collected sampled DC voltage across this inductor by soldering some small wires to both ends of inductor and using DAQ to sample the data.
How can I get from this collected data current and energy?
Previously, I have used same method to measure total energy usage, from power source (power adapter cable) of embedded platform. And to get current, I used small resistor of 0.1Ohm.
Can I do something similar and use measured DC resistance of inductor (measured when board is off) to derive current from sampled voltage data?
(I am trying to analyse how much energy is used by CPU)
I am trying to measure energy spent by CPU performing some task on embedded platform running Linux (like moving a file, or compressing something.. etc).
At this moment, I have collected sampled DC voltage across this inductor by soldering some small wires to both ends of inductor and using DAQ to sample the data.
How can I get from this collected data current and energy?
Previously, I have used same method to measure total energy usage, from power source (power adapter cable) of embedded platform. And to get current, I used small resistor of 0.1Ohm.
Can I do something similar and use measured DC resistance of inductor (measured when board is off) to derive current from sampled voltage data?
(I am trying to analyse how much energy is used by CPU)
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