Abstract
Automation of assembly operations throughout the textile industry requires the development and implementation of new quality monitoring systems. A beta-particle transmission gauge using a 90Sr source is investigated as a potential on-line seam inspection technique. The fundamentals of beta-particle transmission radio gauges are discussed in the context of their applicability to textile materials, and preliminary results are obtained with a laboratory prototype device. Unknown sample thicknesses for a variety of woven and knit fabrics are determined from the counting rate intensities of radiation transmitted through the fabric and the experimentally derived areal density. Single-fold knit hems and felled denim seams are evaluated by the gauge system. Results indicate that the number of layers present within the hem or seam can be rapidly and accurately determined to assess seam quality.
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