The measurement of mechanical quantities forms the basis for quantitatively describing motion, load, and forces in engineering and natural sciences. Every measurement assigns a numerical value to a real physical condition by comparing an unknown quantity with a defined unit. Thus, the measurement of mechanical quantities also follows the fundamental principle: a measurement captures a measured variable – not the measuring device.
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Key Facts
Fundamentals of Mechanical Quantities
What are mechanical quantities, and why are they a fundamental class of quantities?
Mechanical quantities describe states and changes in motion as well as mechanical loads acting on bodies. They represent one of the central quantity classes in physics and are directly linked to the function, precision, service life, and safety of machines and systems.