Jackson Labs PHASE STATION 53100A, Руководство пользователя

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PhaseStation 53100A User’s Manual V1.04 25-Apr-2022 115
Measurement Menu
The Measurement menu selection determines how TimeLab displays the data in any plots that have
been acquired or loaded. One measurement type may be selected at a time.
As discussed on page 36, TimeLab plots (and their associated .TIM files) use independent data records
for different measurement classes. Some instruments like the TimePod 5330A and PhaseStation 53100A
can acquire data for all measurements supported by TimeLab, but most are limited to specific
measurement types. For instance, acquisitions made with a frequency counter or TIC may be viewed
with the
Allan deviation ( a ) , Modified Allan deviation ( m ) , Hadamard deviation ( h ) , Time deviation ( t ) ,
MTIE (
M
), Phase difference (
p
),
or
Frequency difference (
f
)
selections on the menu, but not
Phase noise
( P ) or AM noise ( A ).
Regardless of the instrument used, all supported measurement records are acquired and processed
simultaneously by TimeLab. After launching a PhaseStation 53100A acquisition with all of the available
measurements selected in the acquisition dialog, for example, you can switch between all of the entries
in the
Measurements
menu to view your data as it arrives.
Plots that don’t include the necessary data for the selected measurement type will not be rendered.
When the TimeLab window is empty despite the presence of one or more loaded or acquired plots, a
brief explanatory message will be displayed in the color associated with each plot to indicate why
nothing is being drawn.
See “Making Measurements” on page 41 for more information on the measurement types supported by
TimeLab.