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Surface Texture Parameters List by Name

Download PDF version of the Surface Texture Parameters Glossary

Parameter Name Symbol Category
Angular Power Spectral Density Function APSDF Spatial
Areal Material Ratio Smr(c)  Functional
Autocorrelation Function ACF Spatial
Autocorrelation Length Sal Spatial
Average Maximum Height of the Surface Rz Legacy
Average Maximum Peak Height Rpm Legacy
Average Maximum Profile Height Along X, Y Stylus (X,Y) Rz 2D Stylus
Average Maximum Valley Depth Rvm Legacy
Average Roughness Sa Height
Average Roughness Along X, Y Stylus (X,Y) Ra 2D Stylus
Core Material Volume Vmc(p,q) Functional
Core Roughness Along X, Y Stylus (X,Y) Rk 2D Stylus
Core Roughness Depth Sk Functional
Core Void Volume Vvc(p,q)  Functional
Dale Void Volume Vvv(p) Functional
Developed Interfacial Area Ratio Sdr Hybrid
Inverse Areal Material Ratio Sdc(mr) Functional
Kurtosis Sku Height
Material Ratio mr Functional
Material Volume Vm(mr) Functional
Maximum Height of Surface Sz Height
Maximum Peak Height Sp Height
Maximum Profile Height Along X, Y Stylus (X,Y) Rt 2D Stylus
Maximum Valley Depth Sv Height
Mean Profile Spacing Along X,Y Stylus (X,Y) Rsm 2D Stylus
Mean Summit Curvature Ssc Hybrid
Normalized Surface Volume NormVolume Legacy
Peak Density Along X,Y Stylus (X,Y) Pc 2D Stylus
Peak Extreme Height Sxp (p,q) Functional
Peak Material Portion SMr1 Functional
Peak Material Volume Vmp(p) Functional
Peak Valley Portion SMr2 Functional
Reduced Peak Height Spk Functional
Reduced Peak Height Along X,Y Stylus (X,Y) Rpk 2D Stylus
Reduced Peak Height to Core Ratio Spk/Sk Functional
Reduced Peak Height to Reduced Valley Depth Ratio Spk/Svk Functional
Reduced Valley Depth Svk Functional
Reduced Valley Depth Along X, Y Stylus (X,Y) Rvk 2D Stylus
Reduced Valley Depth to Core Ratio Svk/Sk Functional
Root Mean Square Profile Wavelength Along (X, Y) Stylus (X,Y) λq 2D Stylus
Root Mean Square Roughness  Sq Height
Root Mean Square Slope Along X,Y Stylus (X,Y) Δq 2D Stylus
Root Mean Square Slope in X,Y Slope Rq (X,Y) Legacy
Root Mean Square Surface Slope Sdq Hybrid
Skewness Ssk Height
Stylus Δq Ratio Stylus X Δq/Stylus Y Δq 2D Stylus
Stylus λq Ratio Stylus X λq/Stylus Yλq 2D Stylus
Stylus Pc Ratio Stylus X Pc/ Stylus Y Pc 2D Stylus
Stylus Ra Ratio Stylus X Ra/Stylus Y Ra  2D Stylus
Stylus Rz Ratio Stylus X Rz/Stylus Y Rz 2D Stylus
Summit Density Sds Hybrid
Surface Area Index SAI Legacy
Texture Aspect Ratio Str Spatial
Texture Direction Std Spatial
Void Volume Vv(mr) Functional


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