en

Sdq

1 symbol

Terminological databases

Metroloogia terminibaas

ID 1157692 Last modified 11.05.2026
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Domain Standardisation - Metrologymeasuring procedures
ruutkeskmine gradient
Sdq
Rdq
root mean square gradient
Sdq
Rdq
  • ristandparameeter, milleks on ruutjuur mõõteulatusega piiratud pinna gradiendi keskmise väärtuse ruudust
  • hybrid parameter what is it for the square root of the mean square of the surface gradient of the scale-limited surface
  • square gradient what is it for the mean square of the local gradient of the ordinate values
ruutkeskmine gradient
Usage examples
  • Ruutkeskmine gradient, mis pinna metroloogias on tähistatud kui Sdq või 2D profiilide puhul Rdq, on ristandparameeter, mida kasutatakse pinna lokaalsete kallete keskmise väärtuse arvutamiseks, esindades pinnatekstuuride keskmist järskust, kombinatsioonis pinnaelementide amplituudi kui ka vahekaugusega.
Sdq symbol
Rdq symbol
root mean square gradient
Usage examples
  • The root mean square gradient (often denoted as Sdq in surface metrology or Rdq for 2D profiles) is a parameter used to calculate the mean magnitude of local slopes (gradients) across a surface. It represents the average steepness of the surface textures, combining both the amplitude and the spacing of features.
Sdq symbol
Rdq symbol

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