Hioki 8835-01 - Page 95

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4.4 Processing Functions (Waveform Parameter Processing)
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A cursor
B cursor
Shaded area is calculated
(12) Standard deviation
・Calculates the standard deviation (V) of the waveform data.
・Equation:
σ: standard deviation
AVE: average value
n: number of data samples
d
i
: i-th data of the source channel
(13) Area value
・Calculates the area bordered by the signal waveform and the zero position
(potential 0 V).
・If the A/B cursors (vertical, trace) are used, the area between the cursors is
calculated.
・Equation:
S: Area value
n: number of data samples
d
i
: i-th data of the source channel
h=Δt: sampling period