Michael,
> When measuring AC power levels the problem is that the AC voltage and
> current is varying so the instantainious power delivered (the product
> of voltage and current at that instant) is not constant. So it is
> convienient to convert the AC readings to an equivelent constant
> reading that would deliver the same power over an extended period.
> (i.e greater than one cycle). This can be done by taking a large
> number of readings over the course of one cycle, multiplying the
> current and voltage and iintegrating the result....

Thanks Richard.. That was was one of the most informative emails I
have read in a long time. Very helpful:)

Mike
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