YOKOGAWA DL750 - Page 681

App-8
IM 701210-06E
Appendix 3 How to Calculate the Area of a Waveform
Integ2XY
(1) When Only One Y Data Corresponds to X Data
13
Start Point
Stop Point
S 0
Area S=S 0
X Axis (Y=0)
X Axis (Y=0)
Area S= –S
0
Stop Point
Start Point
S 0
24
Stop Point
Start Point
S 0
Area S=S 0 –S 1
X axis (Y=0)
X Axis (Y=0)
Area S=S
0
Start Point
Stop Point
S 0
(2) When the Waveform Extends into the Negative Side
X Axis (Y=0)
S 0
S 1
Start Point
Stop Point
(2) When Two or more Y Data Correspond to X Data
X Axis (Y=0)
S 0
Start Point
Stop Point
Area S=S 0
X Axis (Y=0)
S 0
Stop
Point
Start Point
Area S=S 0 +2×S 1 +S 2
S 1
S 2
Area S= –S 0