AVTECH ELECTROSYSTEMS AVRQ-4-B, Instructions Manual

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PROGRAMMING YOUR PULSE GENERATOR
KEY PROGRAMMING COMMANDS
The “Programming Manual for -B Instruments” describes in detail how to connect the
pulse generator to your computer, and the programming commands themselves. A
large number of commands are available; however, normally you will only need a few of
these. Here is a basic sample sequence of commands that might be sent to the
instrument after power-up:
*rst (resets the instrument)
trigger:source internal (selects internal triggering)
frequency 10 Hz (sets the frequency to 10 Hz)
pulse:transition 50 ns (sets the rise time to 50 ns)
pulse:width 1 us (sets the pulse width to 1 us)
pulse:delay 1 us (sets the delay to 100 ns)
volt1 +1 kV (sets the HV PULSE amplitude to +1 kV)
volt2 5.0 (sets VCC to +5.0V)
output on (turns on the output)
The output will turn off automatically 90 seconds later, if no further commands are sent
before then.
For triggering a single event, this sequence would be more appropriate:
*rst (resets the instrument)
trigger:source hold (turns off all triggering)
pulse:transition 50 ns (sets the rise time to 1 us)
pulse:width 1 us (sets the pulse width to 1 us)
volt1 +1 kV (sets the HV PULSE amplitude to +1 kV)
volt2 5.0 (sets VCC to +5.0V)
output on (turns on the output)
trigger:source immediate (generates a single non-repetitive trigger event)
trigger:source hold
(turns off all triggering)
output off (turns off the output)
To set the instrument to trigger from an external TTL signal applied to the rear-panel
TRIG connector, use:
*rst (resets the instrument)
trigger:source external (selects internal triggering)
pulse:transition 50 ns (sets the rise time to 50 ns)
pulse:width 1 us (sets the pulse width to 1 us)
pulse:delay 1 us (sets the delay to 100 ns)
volt1 +1 kV (sets the HV PULSE amplitude to +1 kV)
volt2 5.0 (sets VCC to +5.0V)
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