1. Legacy and fundamentals of metrology

1.1 Metrology, a scientific and technical discipline

Metrology is defined as the science of measurement. It encompasses all the principles and methods of instrumentation and measurement that make it possible to guarantee the accuracy of results, and to interpret and use these results to make decisions, while mastering the environment. associated uncertainty. These fundamental principles are based on the establishment of measurement units and standards, and the evaluation of measurement uncertainties. The International System of Units (SI), established in 1960, is the world's most widely used system of units.

The metrology department operates according to a specific organizational structure