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Definition of Ovality

Ovality Definition from Science & Technology Dictionaries & Glossaries
Telecommunication Standard Terms
1. The attribute of an optical fiber , the cross section of the core or cladding of which deviates from a perfect circle. 2. In an optical fiber, the degree of deviation, from perfect circularity, of the cross section of the core or cladding. Note 1: The cross sections of the core and cladding are assumed to first approximation to be elliptical. Quantitatively, the ovality of either the core or cladding is expressed as 2(a-b )/(a +b ), where a is the length of the major axis and b is the length of the minor axis. The dimensionless quantity so obtained may be multiplied by 100 to express ovality as a percentage. Note 2: Alternatively, ovality of the core or cladding may be expressed or specified by a tolerance field consisting of two concentric circles, within which the cross section boundaries must lie. Synonym noncircularity.
Oil and Gas Field Glossary
The term used to represent the physical condition of a tube which has assumed an oval geometry. The calculation used to quantify ovality is obtained by dividing the maximum difference in outer diameter tube measurements (taken about the circumference) by the specified diameter of the tube. Ovality is generally represented as a percent change in tube roundness.
Ovality Definition from Encyclopedia Dictionaries & Glossaries
Wikipedia English - The Free Encyclopedia
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.

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