Applications:
Chemical, polymer, pharmaceutical, and natural powders; toners, gypsum, food condiments; any sample whose particles do not conform easily with any of the other shape models, or for which data on surface roughness is needed.
Available measures:
- Feret Width
- Feret Width is the smallest possible spacing between parallel lines that contact but do not intersect the shape. Feret Width often agrees closely with sieve data.
- Feret Length
- Feret Length is the largest possible spacing between parallel lines that contact but do not intersect the shape.
- Feret Aspect Ratio
- Feret AR is the ratio of Feret Length to Feret Width.
- Surface Uniformity
- Surface Uniformity is a measure of the amount of local fluctuation in the particle cross-section’s perimeter. 1.0 means no surface roughness; lower values represent greater degrees of roughness.
Images showing Feret Length values
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