KNOWLEDGEBASE
Item #: 1254 |
Created: 4/1/2013
Categories: Power Meter - PZ4000, Power Meter - WT1600, Power Meter - WT1800, Power Meter - WT200, Power Meter - WT2030/1030/2533, Power Meter - WT3000, Power Meter - WT500
Why are the Measured Values for RMS and MEAN of a Sine Wave Incorrect?
Solution:
The waveform may actually not be a pure sine wave. Even though a 50/60 Hz sine wave is expected, the following factors may be involved:
- The waveform is slightly distorted (harmonic components are mixed in)
- Small amounts of harmonic noise are superimposed on the waveform
- DC offset is superimposed on the waveform.
