Standard (metrology)

Material measures or etalons (French étalon, sampling ') are teaching, measuring instruments, or components of that certain individual values ​​of a measured variable or a sequence of values ​​of a measured variable represent. They are used to define a prototype unit of a physical quantity, as normal for calibration or calibrating of measuring equipment or as a tool for measuring.

The basic measurement technology DIN 1319 defines material measures, english material measure, French mesure matérialisée:

" Device, which constitutes one or more fixed values ​​of a size or supplies "

Typical sizes are used for the measurement scales are: mass, room dimensions, length, angle, square measure as well as the electrical parameters such as voltage and resistance.

Six dry measures from the mens ponderia in Pompeii, an urban device for control of weights and measures (79 AD)

Examples of objective material measures:

  • Prototype kilogram
  • Weights
  • The standard meter in Paris, with the up to 1960, the length was defined
  • Gauge
  • Fabry-Perot interferometer with a fixed mirror spacing
  • Noniusstrukturen
  • Kepler - boiler ( meter )
  • Measuring gears
Vernier scale
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