11-2 Chapter 11
Error Terms
Error Terms
Error Terms
The analyzer generates and stores factors in internal arrays when measurement
error-correction (measurement calibration) is performed. These factors are known by the
following terms:
• error terms
•E-terms
• measurement calibration coefficients
The analyzer determines error terms by measuring well-defined calibration devices over
the frequency range of interest and comparing the measured data with the ideal model for
the devices. The differences represent systematic (repeatable) errors of the analyzer
system. The resulting calibration coefficients are good representations of the systematic
error sources. For details on the various levels of error-correction, refer to the “Optimizing
Measurement Results” chapter of your analyzer’s user’s guide. For details on the theory of
error-correction, refer to the “Operating Concepts” chapter of your analyzer’s user’s guide.
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