| 摘要 |
A fibre assessment apparatus (1) comprises a light source (2), a focusing means (3) and an image sensing means (4) all provided on the same measurement axis (6). A fibre (5) to be assessed is arranged at right angles to the measurement axis between the light source and the focusing means and an image of the fibre is focused on to the image sensor, which can be an array of sensors such as a charge coupled device ("CCD") array. The sensed image is digitized and processed to produce a measurement of the diameter of the fibre. Additional measurements can be taken along other axes to determine the extent of the non-circularity of fibres. Providing additional light sources off-axis can be used to determine other irregularities in the fibre. The apparatus can be used for natural fibres such as wool, as well as wires, synthetic fibres and optical fibres. |
