| 摘要 |
FIELD: physics, measurement. ^ SUBSTANCE: method of textile fibre length evaluation using computer image consists in random layout of single fibres on working surface of scanner, fibre orientation in horizontal plane as pressed with a plate of contrast colour, digital sample imaging, sequential processing of the specified image to detect starting points on fibre image, separation of elementary linear components of fibre image and length measurement followed with stack-up of lengths of elementary linear components. Regulatory local error is preset on the basis of one bending of fibre image; each fibre is tested for bending number of fibre image. Total measurement error of single fibre length is calculated by multiplication of bending number of fibre image by regulatory local error. Actual fibre length is evaluated by addition of total length of elementary linear components and total measurement error of each fibre length. ^ EFFECT: higher accuracy of computer measurement method of single fibre length due to reduced regular error caused by multiple fibre bending. ^ 5 dwg |
