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8-3
IM 701210-05E
Display
8
8.2
Setting the Display Interpolation Method
<For a description of this function, refer to page 2-37.>
Procedure
MEASURE CURSOR
RESET
SELECT
CH
ALL CH
MODE
POSITION
SIMPLE/ENHANCED
ACQ
START/STOP
SETUP
DISPLAY
ZOOM
DUAL
CAPTURE
HISTORY
MATH
1
CH
2
CH
3
CH
4
CH
5
CH
6
CH
7
CH
8
CH
9
CH
10
CH
11
CH
12
CH
13
CH
14
CH
15
CH
16
DELAY
MANUAL TRIG
V/DIV
TIME/DIV
TRIGGER
TRIG D
VERTICAL
HORIZONTAL
CAL
X-Y
SEARCH
7
DSP 1
8
9
DSP 2
6
5
4
1
0
2
3
ENTER
m
DSP 6
DSP 5
LOGIC A
LOGIC B
EVENT
DSP 3
DSP 4
EXP
GO/NO-GO
ACTION
FILE
SHIFT
1.
Press
DISPLAY
.
Setting the Interpolation Method
2.
Press the
Interpolation
soft key. The interpolation selection menu appears.
3.
Press the soft key corresponding to the desired interpolation method from
OFF
,
Sine
, and
Line
.
If you select OFF, proceed to step 4.
Setting the Number of Data Points to Be Used for Waveform Display
4.
Press the
Decimation
soft key to select the number of points to be used for the
display from 2k and 100k.
Note
Decimation specifies the number of dots when interpolation is turned OFF. For example, if
the record length is 100 kW and Decimation is set to 2k, data is extracted at constant
intervals. Waveform is displayed using 2 kW of data. If Decimation is set to 100 k, the
waveform is displayed using all 100 kW of data.
Explanation
Setting the Interpolation Method
Any area along the time axis having less than 1000 points in 10 divisions (less than 500
points in the Z1 and Z2 window when displaying Main & Z1 & Z2) is recognized as an
interpolation area. If you leave interpolation off, these points will appear as discrete dots
(so that the display will show gaps between dots or vertical lines).
If you set interpolation on, however, the DL750/DL750P will connect the points. Three
following interpolation methods are available.
Sine(
): Interpolates between two points using the sin(x)/x function.
Line(
):
Linearly interpolates between two points.
OFF(
): No interpolation.
• When the Area Is Not an Interpolation Area
If interpolation is set to Sine or Line, the instrument draws lines between points that
are aligned vertically.
Interpolate
OFF
:
Sine
Line