Racal Instruments 3152A, Руководство пользователя

Страница: 45 / 176

3152A User Manual
Racal Instruments
©
2001 Using The Instrument 3-7
The command:
APPLy: USER {<segment_number>,<sampling_clock>,
<amplitude>,<offset>}
programs the synthesizer to output an arbitrary waveform. The
specified segment number must be loaded with an arbitrary
waveform before the synthesizer can execute this command
successfully. This command lets you specify segment number,
sampling clock rate, amplitude and offset. The default settings
for these functions are: 1, 1 MHz, 5 Vp-p and 0 V.
The query:
APPLy:<function_shape>?
queries parameters associated with the specified function shape.
Returns a string of values depending on the parameters that are
available for the selected function shape.
The query:
APPLy?
queries parameters associated with the currently selected
function shape and returns a string of values depending on the
parameters available for the selected function shape. For
example, if the synthesizer is programmed to output a ramp
waveform, the APPL? command returns: "1e+6, 5, 0 , 0, 10, 10,
10".
Example 2
The following example programs the Model 3152A using the
APPLy command. This example turns on the main output,
generates a square waveform, programs frequency to 2 MHz,
programs amplitude to 5 V and offset to 2.5 V. It also changes
the square wave duty cycle parameter to 25%.
/* Reset the Model 3152A to its default condition as listed in
Table 3-1. */
:RESet;