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A comparison of mass parameters determination using capacitive and optical sensors

Authors
Journal
Procedia Chemistry
1876-6196
Publisher
Elsevier
Publication Date
Volume
1
Issue
1
Identifiers
DOI: 10.1016/j.proche.2009.07.191
Keywords
  • Yarn Mass Parameterization
  • Diameter And Mass Correlation
  • Optical Sensors
  • Capacitive Sensors
  • Optical Signal Processing
Disciplines
  • Computer Science
  • Mathematics

Abstract

Abstract This paper presents a comparison study between the use of 1mm resolution capacitive and optical sensors for the determination of yarn mass parameters. A parallel plate capacitive sensor to determine yarn mass variations and a yarn diameter and hairiness determination solution using optical sensors and integrating optical signal processing based on Fourier analysis are described. As there is a high correlation between yarn diameter and yarn mass, it is possible to determine yarn mass and infer variations in yarn diameter and vice-versa. Moreover, by optically detecting the degree of yarn hairiness, one can quantify its influence on the capacitive sensor mass variation measurements. Here we present the results of a signal processing analysis and statistical description of measurements carried out on a 100% cotton 295 g/km linear mass yarn. We conclude that an accurate yarn characterization can be carried out using optical sensors alone, reducing systems cost, complexity and increasing efficiency.

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