Question: Power Sensor


the implemented Power Sensor calculates the instantenious power, it just multiplies u(t) and i(t). What i need now is a device that gives me the average power, the sources all have periodic voltages/currents (most common case: sin shaped sources). I thought i could use the power sensor and integrate over a period, but i don't know how to  enter the upper time limit.


Thoughts ?

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