Aperture Index

Views Updated: Dec 15, 2025

Abbreviation

Pronunciation

/ˈæpərʧər ˈɪndɛks/

The effect parameters, such as fiber optical spot size, the numerical aperture and magnification of a gradient index lens, match and assembly between a gradient index lens and the fiber on axial resolution of the fiber optical confocal microscope.
Results show that the error decreases with the increase of fracture aperture, the pressure gradient and flow behavior index and increased with the increase of the yield stress.
The system can also be applied to measurement of numerical aperture of polymer optic fiber and characterization of the refractory index distribution.
The results show that for the imaging light the intensity of TM polarized light relatively increases because of large numerical aperture, which will influence image quality. Imaging in high refractive index medium can be used to improve this polarization effect problem.
A systematic investigation on effect of a few surfactants usually used in sugar manufacture on MA ( Mean Aperture ), CV ( Coefficient of Variation ) and CRI ( Crystal Regularity Index ) of sucrose crystals is presented.

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