Amplitude Sweep Menu - Ametek 7280 Instruction Manual

Chapter 5, FRONT PANEL OPERATION

5.3.11 Amplitude Sweep Menu

5-20
present frequency. The control changes to PAUSE
Note that if the oscillator amplitude sweep (see section 5.3.11) is also armed then the
controls that start, pause, continue and stop on the Frequency Sweep menu will also
control the amplitude sweep. Similarly, if the frequency sweep is linked to the curve
buffer then the amplitude sweep will be as well.
LAW
This control defines the relationship of output frequency to time for the frequency
sweep, and has three options:-
LOGARITHMIC
Selects a logarithmic relationship. When in this mode, the frequency is defined in
terms of a percentage of the current frequency. For example, if the step size were
set to 10%, the start frequency to 1 kHz and the stop frequency to 2 kHz, then the
frequencies generated during the sweep would be:-
1000.000 Hz
1100.000 Hz
1210.000 Hz
1331.000 Hz
1464.100 Hz
1610.510 Hz
1771.561 Hz
1948.717 Hz
2000.000 Hz
LINEAR
Selects a linear relationship.
Pressing the Curve Buffer key accesses the Previous Menu key returns control to the
Oscillator Menu.
When the Oscillator menu is displayed, pressing a key adjacent to the Setup
amplitude sweep item accesses the Amplitude Sweep menu, which is shown in figure
5-14.