YOKOGAWA DL 1540 User Manual

App-11
IM 701510-01E
Appendix
App
Appendix 4 How to Calculate the Area of a Waveform
“Integ1TY”
Total area for positive side only: S 1 +S 2
;
;
S 1
S 2
“Integ2TY”
Total area for both positive and negative sides: S 1 +S 3 –S 2
;;
;
;
;
S 1
S 3
S 2
“Integ1XY”
;
;
;
(1) Multiplc loops
S 0
Start point,
Stop point
Area S= n×S 0
n: Number of loops
;
(2) Non-closed curve
S 0
Start point
Area S= S 0
Area enclosed by 
a curve connecting 
the start and stop 
points
Stop point
(3) Loop tracing the shape of "8"
Area S= | S 0 – S 1 |
(4) Spiral loop
Area S= S 0 ×2+S 1
Number of overlaps 
varies according to 
the number of loops.
Stop point
;
;
S 0
S 1
Start point
Stop point
;
Start
point
S 0
Waveform
S 1
“Integ2XY”
;
(1) When only one Y data corresponds to X data
13
;
Start point
Stop point
S0
Area S=S0
X axis (Y=0)
;
X axis (Y=0)
Area S= –S
0
Stop point
Start point
S0
24
;
;
Stop point
Start point

S0
Area S=S0–S1
X axis (Y=0)
;
X axis (Y=0)
Area S=S
0
Start point
Stop point
S0
(2) When the waveform extends into the negative side
;
X axis (Y=0)
S0
S1
Start point

Stop point
(2) When two or more Y data correspond to X data
X axis (Y=0)
;
;
S0
Start point
Stop point
Area S=S0
X axis (Y=0)
;;
;;
;
S0
Stop
point
Start point
Area S=S0+2×S1+S2
S1
S2
Area S= –S0

YOKOGAWA DL 1540 Specifications

General

Brand	YOKOGAWA
Model	DL 1540
Category	Test Equipment
Language	English