Stanford Research Systems SR785, Operating Manual And Programming Reference

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Analysis Menu 4-147
SR785 Dynamic Signal Analyzer
Analysis Menu
Data Table
Display the Data Table menu for the active display.
The Data Table reports the Y data values for user specified X coordinates. For example,
the entries could be a set of harmonic frequencies which need monitoring. Each display
has its own Data Table though only the table associated with the active display is shown
at any time. If the Display Format is Dual, the active display’s Data Table is in the
inactive display’s location. If the Display Format is Single or Overlay, the Format is first
changed to Dual.
To generate a report of the measurement, the active display Data Table may be printed.
Choose ASCII Dump for the [Output] <Hard Copy Button> and use [Print Screen].
Data Table x coordinates are saved to disk with the instrument settings.
A Data Table with coordinates defined in the frequency domain will revert to bin
locations if the measurement is changed to the time domain (and vice versa). Data Tables
are generally only applicable for the domain (time or frequency) and span in which they
were originally defined.
Limit Test
Display the Limit Test menu for the active display.
Limit Testing tests the measurement results against a set of defined Limit Segments.
When display data exceeds a Limit Segment at any point, the test fails. Each display has
its own set of Limit Segments. Limit Segments are saved to disk with the instrument
settings.
A Limit Segment is defined as the line between the pair of points (X0,Y0) and (X1,Y1).
The segment values between the endpoints are calculated for the displayed span. A
segment may be defined as either an Upper or Lower limit. Measurement data which is
greater than an Upper limit or less than a Lower limit cause the test to fail.
Limit Segments are defined for the current View. Changing the View invalidates the
Limit Segments and limit testing is not available in the new View. Either return to the