Chapter 2 – Some Basics of Measurement

This chapter introduced many of the basic concepts in the field of metrology. The international SI system is discussed along with the units of measurement. The units most used in engineering metrology, length, mass, force and angle, are then addressed in some detail, including their realisation. The important concept of traceability is then covered, including some examples, and the most important terms in metrology are introduced. Uncertainty in measurement is discussed, both the standard technique to estimate it and a Monte Carlo method. The theory and realisation of the laser are covered in some detail, including stabilisation schemes and the use of the laser to realise length.

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