YOKOGAWA DL7440, Руководство пользователя

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17
IM 701450-61E
6 Performing Statistical Processing on the
Measured Values of Power Analysis Parameters
Procedure
• To exit the menu during operation, press ESC located
above the soft keys.
• 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
PRINT
ACQ START/STOP
IMAGE SAVE
DISPLAY
To perform automated measurement of power analysis parameters and statistical
processing, you must turn ON the power analysis function on the applicable
channels. For the setup procedure, see section 3 in this manual.
Note
To make correct measurements and computation, it is recommended that the difference in
the transfer time of the analyzed signals be corrected (deskewed). For the setup procedure,
see section 4 in this manual.
1. Press MEASURE . The MEASURE menu appears.
You can also display the MEASURE menu by selecting To Measure in the Power
Analyze Setup dialog box described in section 3 of this manual and pressing SELECT.
The rest of the procedure is the same as steps 2 to 15 in section 10.7 (pages 10-54 to
10-58) in the DL7440/DL7480 User’s Manual IM701450-01E .
However, the steps for selecting measurement parameters are the same as steps 4 to 8
in section 5 (page 13) in this manual.
Explanation
As with the standard measurement parameters (waveform parameters), you can perform
statistical processing on the measured values of power analysis parameters. The
following five statistics can be displayed on the measured values of two measurement
parameters.
Max Maximum value
Min Minimum value
Avg Average value
Sdv Standard deviation
Cnt Number of measured values used in the statistical processing
For example, if you selected power analysis parameter UP-P of CH1 as a measurement
parameter, the maximum, minimum, average, standard deviation, and the number of
measured values used in the statistical processing of the UP-P of CH1 are displayed.
For a detailed explanation on statistical processing, see the explanation given in section
10.7 (pages 10-59 and 10-60) in the
DL7440/DL7480 User’s Manual
.