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Using The Instrument 3-16
The query:
PULSe:TRANsition:TRAiling?
queries the pulse fall time setting and returns a value in percent.
Selecting an
Operating Mode
The Model 3152 offers four operating modes: Continuous,
Triggered, Gated and Burst. The selected waveform is repeated
continuously when the instrument is set to operate in Continuous
mode. In this mode, the Model 3152 does not require a trigger
source to stimulate its output cycles. The default operating mode of
the instrument is continuous.
Triggered, Gated, and Burst modes require an external signal to
initiate output cycles. Information on how to trigger, gate and output
a burst of waveforms is given in the following paragraphs.
Triggered Mode
In Triggered mode, the output remains at a certain DC level as long
as the TRIG IN signal from the front panel remains inactive. A TTL
signal is used to stimulate the TRIG input. The synthesizer is
sensitive to either the rising edge or the falling edge. Each time a
transition at the trigger input occurs, the Model 3152 generates one
complete output waveform. At the end of the output cycle, the
output resumes position at a DC level equal to the last point of the
waveform.
The Triggered mode operates on standard waveforms and arbitrary
waveforms. Observe the limitations of the trigger signal as listed in
the specification section of this manual. Note that for Standard
Waveforms, other than square wave, the Model 3152 is limited to
signal frequencies of 10 MHz or less. To place the Model 3152 in
Triggered mode, use the following command:
INITitiate:CONTinuous {OFF | ON}
OFF places the instrument in Triggered mode. ON restores
continuous operation.
The query:
INITitiate:CONTinuous?
queries the instrument operating mode parameter and returns "0"
(OFF) or "1" (ON).
Gated Mode
The Model 3152 can be set to operate in Gated mode only after the
INIT:CONT OFF command has been received. The output remains
at a certain DC level as long as the TRIG IN signal from the front
panel remains inactive. A TTL level signal is used to stimulate the
TRIG input. The gating signal can be programmed to be either
active high or active low. Each time the proper level is present at
the trigger input connector, the Model 3152 generates output
waveforms as long as the gate signal is present. When the gate
signal is de-asserted, the output completes the last cycle and
resumes position at a DC level equal to the last point of the
waveform.
Содержание 3152
Страница 16: ...Getting Started 1 7 Figure 1 1 Segment 1 Sin x x Waveform Figure 1 2 Segment 2 Sine Waveform...
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Страница 80: ...SCPI Command Reference 4 17 Figure 4 1 SCPI Status Registers...
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