18
IM 701450-61E
7
Performing Waveform Computation on Power
Analysis Parameters
Procedure
• To exit the menu during operation, press
ESC
located
above the soft keys.
• In the procedural explanation below, the term
jog shuttle & SELECT
refers to the operation of
selecting/setting items and entering values using the
jog
shuttle
,
SELECT
and
RESET
keys. For details on the
operation using the jog shuttle, SELECT, and RESET, see
sections 4.1 or 4.2 in the
DL7440/DL7480 User’s Manual
.
• For a description of the operation using a USB keyboard or
a USB mouse, see section 4.3 in the
DL7440/DL7480
User’s Manual
.
X-Y
PHASE
MENU
MENU
SETUP
FILE
MISC
RESET
SELECT
MATH
SHIFT
GO/NOGO
CURSOR
MEASURE
HISTORY
ACQ
START/STOP
IMAGE SAVE
DISPLAY
The following setup is required to perform waveform computation on power
analysis parameters.
• Turn ON the power analysis function on the applicable channels, and turn ON
the assignment of waveform analysis parameters to computed waveforms. For
the setup procedure, see section 3 in this manual.
• Turn ON the computed waveform display. For the setup procedure, see section
9.1 in the
DL7440/DL7480 User’s Manual IM701450-01E.
Note
•
The setup procedures for computed waveform Math1 are described below. Perform similar
steps for Math2.
•
For the procedure for turning ON/OFF the computed waveform display (Math1 Display or
Math2 Display) and the procedure for setting computed waveform labels (Math1 Label or
Math2 Label), see section 9.1 in the
DL7440/DL7480 User’s Manual
.
•
To make correct measurements and computation, it is recommended that the difference in the
transfer time of the analyzed signals be deskewed. For instructions, see section 4 in this manual.
1.
Press
MATH
. The MATH menu appears.
You can also display the MATH menu by selecting To Math in the Power Analyze
Setup dialog box described in section 3 of this manual and pressing SELECT.
2.
Press the
Math Mode
soft key to select Normal. The normal computation menu opens.
3.
Press the
Math1 Setup
soft key. The Math1 Setup dialog box opens.
*
For the setup procedure of Math1 Display, see section 9.1 in the
DL7440/DL7480
User’s Manual
.
Setting the Equation, Scaling, Unit, and Smoothing
4.
Use
jog shuttle & SELECT
to set the operator of the power analysis parameter
in the Operation box. Then, set the computation source waveform, scaling, unit,
smoothing, and other items according to the operator.
When the Math1 Setup dialog box is closed by pressing ESC or another key, the
specified equation appears in the Math1 Setup menu column.
For the setup procedure of the five operators of power analysis parameters, see the pages
indicated below. For a description of the Trend operator, see section 8 in this manual.
•
Power (Instantaneous power) -> Page 19 • Z (impedance) -> Page 19
•
I
2
t (Joule integral) -> Page 20
• PS (power spectrum) -> Page 20
•
Harmonics -> Page 21
Operators of power
analysis parameters
