APERTURE RATIO-MEASURING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an aperture ratio-measuring device which can inhibit the irregularity of measurements as much as possible, can measure the accurate aperture area of each aperture portion, and is practically excellent. SOLUTION: This aperture ratio-measuring device for measuring the aperture ratio (the sum of the aperture areas S of an aperture portion 4 / the total area of a measured region) of the aperture portion 4 surrounded with a warp 5 and a weft 6 in a woven fabric 2 woven from warps 5 and wefts 6 and used for a fiber-reinforced resin is disposed with a light-emitting portion 1 and a light-receiving portion 3 for receiving the light of the light-emitting portion 1 across the woven fabric 2 used for the fiber-reinforced resin, and synchronously moving the light-emitting portion 1 and the light-receiving portion 3. COPYRIGHT: (C)2006,JPO&NCIPI