Stanford Research Systems SR785, Руководство по эксплуатации и программированию

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Swept Sine Average Menu 4-119
SR785 Dynamic Signal Analyzer
Swept Sine Average Menu
When the Measurement Group is Swept Sine, this menu sets the settle and integration
times. These parameters govern the measurement of both channels. See ‘Swept Sine’ in
Chapter 2 for a discussion about swept sine measurement fundamentals.
Settle Time
Set the Settle Time in increments of 3.906 ms [7.8125 ms .. 1 ks]
At each frequency point, a settling time is allowed to pass before any measurement is
made. This allows the device under test to respond to the frequency change. The Settle
Time is rounded up to the next multiple of 3.906 ms. The actual settling time is the larger
of the Settle Time and the Settle Cycles (rounded to the next multiple of 3.906 ms). The
settling time is always a minimum of 1 cycle or 7.8125 ms.
Changes made to the Settle Time during a sweep take effect immediately.
The estimated sweep time is displayed in the Horizontal Scale Bar. This time is simply
the sum of the Settle and Integrate times for all points in the sweep. Auto functions
(Source Auto Level, Auto Range, Auto Resolution) will change the actual sweep time.
Command: SSTM (?) d {, x}
Settle Cycles
Set the number of Settle Cycles [1..32767].
At each frequency point, a settling time is allowed to pass before any measurement is
made. This allows the device under test to respond to the frequency change. The actual
settling time is the larger of the Settle Time and the Settle Cycles (rounded to the next
multiple of 3.906 ms). The settling time is always a minimum of 1 cycle or 7.8125 ms.
Changes made to the number of Settle Cycles during a sweep take effect immediately.
The estimated sweep time is displayed in the Horizontal Scale Bar. This time is simply
the sum of the Settle and Integrate times for all points in the sweep. Auto functions
(Source Auto Level, Auto Range, Auto Resolution) will change the actual sweep time.