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Phase difference = Horizontal distance of new sweep range
(div) x 45°/div
-
New SWEEP TIME/DIV setting
Original SWEEP TIME/DIV setting
Another simple method of obtaining more accuracy quick-
ly is to simply use
x 10 MAG for a scale of 4.5°/div.
Phase difference
One cycle adjusted to occupy 8 div.
Fig. 34
——
hase difference
Expanded sweep waveform display.
Fig. 35
(2) Cursor measurement (CS-5130 only)
1. In ordinary procedures 1 and 2, adjust waveforms to be
measured to an easy-to-observe position.
2. Adjust 1 cycle's waveform to 5 divisions with the SWEEP
TIME/DIV. VARIABLE controller. Then move two wave-
forms to the center of the scale with the # POSITION
switches.
3. Set the cursor mode to 1/AT.
NOTE: When the SWEEP TIME VARIABLE switch is set
to UNCAL, the unit is set to PHASE measurement
mode.
4. Bring the 4 REF
cursor
to the intersection
of the
phaseleading signal and center line of the horizontal scale,
and bring the A cursor to the intersection of the phase-
lagging signal and center line of the horizontal scale.
28
5. Measured value is displayed in the upper right part on
the screen.
4 REF cursor
A cursor
Fig. 36
10. TIME RATIO MEASUREMENT
USING CUR-
SORS (CS-5130 only)
Duty ratio of square waves can be measured as follows:
1. Supply signal into the INPUT terminal. Set the V. MODE
switch to the channel to be used, the AC-GND-DC selec-'
tor switch to DC, and each switch so that ordinary sweep
is displayed. Then adjust the VOLTS/DIV and SWEEP
TIME/DIV for easy waveform observation.
2. Turn the SWEEP TIME VARIABLE switch on to adjust 1
cycle's waveform to 5 divisions on the screen with the
<4» POSITION switches as necessity requires.
NOTE: When the SWEEP TIME VARIABLE switch is set
to UNCAL, the unit is set to RATIO measurement
mode.
3. Set the cursor mode to AT.
4. Adjust the A REF cursor to the left of the two points to
be measured, and the A cursor to the right-
5. Duty ratio with respect to the 5 div (100%) point is dis-
played percentagewise in the upper right part on the
screen.
Measured value
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