Managing Inter Laboratory Laser Measurement Variance in Raw Cashmere Contracts
Manage raw cashmere laser variance by specifying test standards, establishing a 0.30-micron split-sample arbitration band, and locking a price deduction matrix.
OFDA200
Optical Analysis
Optical inspection instruments measure the dimensional distribution of animal fibers using automated image analysis. The instrument known as ofda200 calculates the mean diameter and standard deviation from a prepared snippet slide. This technology replaces slower manual projection microscope methods, allowing laboratories to process hundreds of samples daily.
It captures thousands of individual fiber measurements within seconds.
Measurement Method
Sample preparation involves cutting fiber snippets and spreading them evenly across a glass slide. The ofda200 scans the slide, using a digital camera and specialized software to identify and measure the diameter of each snippet. These measurements are collected to generate a complete wool profile, including diameter distribution, curvature, and medullation.
Industrial Output
Mills utilize this rapid optical data to organize their grease wool inventory and adjust their spinning parameters. Accurate micron data from the ofda200 prevents machine blockages and maintains yarn consistency across different production runs. This efficiency enables factories to produce high-quality fabrics that meet exact weight and texture specifications.
Precision Check
Instrument calibration must be checked regularly using standard wool samples of known diameter to prevent drift. The optical sensor is sensitive to dust and grease, which can distort the light signal and lead to false readings. Operators perform daily cleanings and run test samples to verify that the ofda200 is operating within acceptable tolerances.
This procedure ensures the reliability of the test certificates used in commercial transactions.