ovality

Ovality is described by a ratio of volume to area:

The dimensionless quantity so obtained may be multiplied by 100 to express ovality as a percentage.

If no other test is conducted to verify ovality or blockages this test must be seen as a standard requirement.

Alternatively, ovality of the core or cladding may be specified by a tolerance field consisting of two concentric circles, within which the cross section boundaries must lie.

Allowable ovality of any pipe is measured to the inside dimension of the pipe, normally 5% to 10% ovality can be accepted.

In telecommunications and fiber optics, ovality or noncircularity is the degree of deviation from perfect circularity of the cross section of the core or cladding of the fiber.

In the case of the progressive press, only part of the forming cycle can be guided by spring loaded sleeves or similar, which result in concentricity and ovality issues and non uniform material thickness.

Quantitatively, the ovality of either the core or cladding is expressed as , where a is the length of the major axis and b is the length of the minor axis.

In computational chemistry, especially in QSAR studies, ovality refers to, a measure of how the shape of a molecule approaches a sphere (at one extreme) or a cigar shape (at the other).

Blockage or Ball Test: When a pipe is welded or bent the most common method to inspect blockages, misalignment, ovality, and weld bead dimensional conformity is to pass a round ball through the pipe coil or circuit.