Applications:
Certain metal powders and polymer powders; some crystals and abrasives; pollen.
Available measures:
- Equivalent Elliptical Area Width
- EEAW is the width of an ellipse equal in area to the original shape, and having an aspect ratio the same as that of the bounding rectangle.
- Equivalent Elliptical Area Length
- EEAL is the length of an ellipse equal in area to the original shape, and having an aspect ratio the same as that of the bounding rectangle.
- Bounding Ellipse Width
- BEW is the width of a minimal-area ellipse that bounds the particle shape.
- Bounding Ellipse Length
- BEL is the length of a minimal-area ellipse that bounds the particle shape.
- Ellipse Aspect Ratio
- EAR is the ratio of EEAL to EEAW and is the same as the bounding rectangle aspect ratio.
- Ellipsicity
- Ellipsicity = (actual shape area) / (bounding ellipse area). This is a measure of how closely the shape conforms to an ellipse.
Images showing EEAL values
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