Applications The Logging Application
164 Agilent 8163A Lightwave Multimeter, Agilent 8164A Lightwave Measurement
System, & Agilent 8166A Lightwave Multichannel System, Fourth Edition
The Logging Application
The Logging 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.
The most important parameters for the logging application are:
• [Samples], this is the number of samples that will be performed during the
logging application, and
• [AvgTime], the averaging time is the length of time over which a signal is
averaged. Longer averaging times increase the accuracy and improve the noise
rejection. Longer averaging times also decrease sensitivity.
The total time for a logging application is the number of samples multiplied by
the averaging time.
The Logging application differs from the “The Stability Application” on
page 173 because all power measurements are performed consecutively without
the possibility of any pause between measurements, as shown in Figure 116.
All results can be:
• displayed on the screen,
• printed out to hardcopy, or
• saved to disk drive of your Agilent 8164A Lightwave Measurement System.
Figure 116 Example Logging Application
Averaging Time
1352 4 687 9
t
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