EXFO IQS-12002B Calibration System - Manual (Page 5)

Calibration System 1
1 Introducing the IQS-12002B
Calibration System
The IQS-12002B Calibration System has been designed to calibrate, verify,
and adjust several types of devices. Some concept pertaining to the system
are described here:
³
Calibration is a set of operations that establish, under specified
conditions, the relationship between values of quantities indicated by a
measuring instrument (DUT) and the corresponding values realized by
standards.
³
Verification consists in comparing calibration results with established
limits. It is the confirmation that, through the explanation of a given
item and a provision of objective evidence, it fulfils specified
requirements.
³
Adjustment is the operation of bringing a measuring instrument into a
state of performance suitable for its use.
³
Uncertainty is the parameter that quantitatively characterizes the
dispersion of values that could be attributed to the measures.
Uncertainty is given with a specific level of confidence.
Note: Accuracy is the qualitative expression of the capacity of an instrument to
give results close to the true value.
Note: Precision is the closeness of agreement between quantity values obtained
by replicate measurements of a quantity under specified conditions.