PeakTech 1190 Bedienungsanleitung Seite 201

9. Read the peak-to-peak values of Channel 1 and Channel 2 from the displayed menu (see Fig. 105).
10. Calculate the amplifier gain with the following formulas.
Gain = Output Signal / Input signal
Gain (db) = 20×log (gain)
Example 3: Capture the Single Signal
The digital storage oscilloscope takes the lead in providing the convenience capturing of such non-periodic
signals as pulse and burr, etc. If you intent to capture a single signal, you cannot set the trigger level and the
trigger edge unless you have particular priori knowledge of this signal. For example, if the pulse is the logic
signal of a TTL level, the trigger level should be set to 2 volts and the trigger edge be set as the rising edge
trigger. If it is uncertain as to the signal, you can make an observation of it in advance under the automatic or
ordinary mode to determine the trigger level and the trigger edge.
The operation steps are as follows:
1. Set the probe menu attenuation coefficient to 10X and that of the switch in the probe to 10X.
2. Adjust the VOLTS/DIV and SEC/DIV knobs to set up a proper vertical and horizontal ranges for the signal
to be observed.
3. Press the button ACQUIRE to display the ACQUIRE Mode menu.
4. Press the F2 menu selection button and choose Peak Detect.
5. Press the TRIG MENU button to display the Trigger Mode menu.
6. Press the F1 menu selection button and choose Single as the type.
7. Press the F3 menu selection button and choose Edge as the mode.
8. Press the F4 menu selection button and choose Rising as the slope.
9. Press the F5 menu selection button to next menu.
10. Press the F2 menu selection button and choose Single as the trigger mode.
11. Rotate the LEVEL knob and adjust the trigger level to the mid-value of the signal to be measured.
Fig. 105 Wave Form of Gain Measurement
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