The Stability Application Applications
Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement System, & Agilent 8166A Lightwave
Multichannel System, Fourth Edition
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– [dev], the standard deviation of all power measurements measured.
On-Screen Messages
The messages listed in the table below may appear at the top[ of the screen during
the Logging application.
The Stability Application
The Stability data acquisition application logs a series of power measurements for
a number of Power Meter channels, plots the results as a graph, and generates a
statistical analysis of the results.
Table 4 Logging Application On-Screen Messages
Agilent 8163A
Message
Agilent 8164A
Message
Description
OvR Overrange
One of the Power Meter channels has reported an over-
range. The over-ranged value is clipped, statistical data is
invalid.
NoH No Head
There is an Optical Head Interface module inserted in the
mainframe that does not have an Optical Head connected to
it. No measurement is possible using this channel until you
either:
• reconnect an Optical Head or
• deselect this Optical Head channel as a power
measurement channel.
NoD No Data
No data has been measured or measurement is not yet fin-
ished. You cannot access the Analysis Screen yet. Printout
and file operations are not yet possible.
Figure 126 Example Stability Application
Averaging Time
Period Time
t
12345
Dwell Time
Tota l Time
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