USTER HVI SPECTRUM, Instruction Manual, Page: 216 / 230

USTER
® HVI SPECTRUM
Instruction Manual
Uster Technologies, Inc. Chapter 15
Glossary • Page 15-2
C.G. — The abbreviation for Color Grade that appears as a report
header.
Calibration — Calibration is used to check or correct the graduations
of measurement on the
HVI SPECTRUM
instrument.
Calibration Constants — The slopes and offsets obtained by the
two-point regression in the calibration procedure.
Calibration Tolerances — In calibration procedures, the selected
allowable deviations in measurement of the properties assigned to the
calibration samples of fiber.
Category —
A method for analyzing test data. The fiber properties
are broken into defined groups for classifying the cotton. Each sample
is assigned a category for each fiber property as it is imported into the
system.
Category Definition — The method of assigning the number of
categories, the beginning and ending values, and the interval between
the categories for each of the fiber properties and calculated properties.
Category Intervals — The range between the categories.
Centered Mixes — Centered mixes are used in applications where
special yarn qualities are needed. Centered mixes make a bale
selection with a specified mix average that may be different from the
warehouse average. For example, in a specific application for strong
yarn, stronger cotton is needed in the mix/laydown. Stronger cotton
can then be selected with a centered mix to meet the specified strength
average for that mix. The program will pull an evenly distributed mix to
achieve that average, however excluding the lower strength categories
in the warehouse. See also
Proportional Mixes
.
Cnt — The abbreviation for Trash Count that appears as a report
header.
Colorimeter — The instrument used to measure the reflectance and the
degree of yellowness in cotton.