Home  >  What is area roughness?  >  Area Roughness Parameters

Sq (Root Mean Square Height) | Area Roughness Parameters

Sq (Root Mean Square Height)

Sq represents the root mean square value of ordinate values within the definition area. It is equivalent to the standard deviation of heights.

Sq (Root mean square height) Sq (Root mean square height)

Search from the parameters list

Height Sa (arithmetical mean height)
Sz (Maximum height)
Sq (Root mean square height)
Ssk (Skewness)
Sku (Kurtosis)
Sp (Maximum peak height)
Sv (Maximum pit height)
Spatial Sal (Auto-correlation length) / Str (Texture aspect ratio)
Std* (Texture direction)
Hybrid Sdq (Root mean square gradient)
Sdr (Developed interfacial area ratio)
Functional Smr(c) Areal material (bearing area) ratio
Smc(mr) Inverse areal material ratio
Sk(Core height)
Spk (Reduced peak height)
Svk (reduced dale height (reduced valley depth))
Smr (Peak material portion)
Smr2 (Valley material portion)
Sxp (Peak extreme height)
Functional volume Vvv (Dale void volume)
Vvc (Core void volume)
Vmp (Peak material volume)
Vmc (Core material volume)
Feature Spd (Density of peaks)
Spc (Arithmetic mean peak curvature)
S10z / S5p / S5v / Sda(c) / Sha(c) / Sdv(c) / Shv(c)

"What is area roughness?" page list


Back to top

Other Pages