beautypg.com

9 sweep magnification – GW Instek GOS-652G User Manual

Page 29

background image

⎯ 24 ⎯

Measurement of single-shot signal: (Except 622G & 635G)

(1)

Set the TRIGGER MODE to the NORM state.

(2)

Apple the calibration output signal to the vertical input terminal, and adjust the triggering level at a value corresponding to
the predicted amplitude of the measured signal.

(3)

Set the TRIGGER MODE to the SINGLE state. Apply the measured signal instead of the calibration signal to the vertical
input.

(4)

Depress the SINGLE button. The sweep circuit is now in the ready state and the READY indicator lamp will be turned on.

(5)

As the one-shot signal occurs in the input circuit, the sweep runs only for one cycle and the one-shot signal is displayed on
the CRT screen. However, this cannot be done when the dual-channel ALT mode is in operation. For the dual-channel one-
sweep operation, use the CHOP mode instead.

4.9 Sweep Magnification

When a certain part of the displayed waveform is needed to be expanded timewise, a faster sweep speed may be used. However,

if the required portion is apart from the starting point of the sweep, the required portion may run off the CRT screen. In such a case, push
in the ×10MAG button.

When this has been done, the displayed waveform will be expanded 10 times to the right and left with the center of screen as the

center of expansion.
The sweep time during the magnification operation is as follows:

(Value indicated by TIME/DIV switch)×1/10

Thus, the unmagnified maximum sweep speed (0.1

µs/DIV)

can be increased with the magnification as follows:

0.1

µs/DIV×1/10 = 10 µs/DIV

When the sweep is magnified and the sweep speed is above

0.1

µs/DIV, the trace may become darker. In such a case, the displayed

waveform should be expanded in the B sweep mode as explained in the
subsequent paragraphs.

Figure 4-12

10 x magnification

Any part can be covered by

means of POSITION control

This manual is related to the following products: