Posted by Wayne Parham [ 68.91.12.218 ] on October 25, 2004 at 14:55:36:
In Reply to: THD Definitions posted by GarMan on October 25, 2004 at 14:12:31:
The formula is actually very simple:
where H1 is the fundamental and H2, H3, HN, etc. are the harmonics. You could calculate only odd-orders or even-orders or you could use a different weighting system. But this is the formula for finding total harmonic distortion. THD found here is a percentage.
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