Method and system for on-line measurement of stranded optical cable pitch

Abstract

The invention provides a method and system for on-line measurement of the pitch of a stranded optical cable, and relates to the field of optical cable pitch measurement. The method includes step 1: a laser length measuring instrument measures the moving length L 0 , output the pulse number P to the line array camera, and control the high-speed line array camera and filter for image acquisition; Step 2: Extract the profile of the twisted optical cable, the morphological features of a single pitch and the morphological features of the reversing point; Step 3: Calculate the morphological features of a single node The number of pixels in the length direction from the morphological feature M 1 , and calculate the length of a single pitch Step 4: Calculate the number of pixels M in the length direction between the morphological features of two identical reversing points 2 , and calculate the length between two identical reversing points Step 5: Read the number of turns R between two identical reversing points, and calculate the average pitch length The present invention uses a laser length measuring instrument with a high-speed linear array camera and a filter To measure the distance between the characteristic points of the stranded optical cable, the measurement resolution can reach 0.1mm, and the accuracy is 1mm.

Description

Technical field [0001] The present invention relates to the field of optical cable pitch measurement, in particular to a method and system for on-line measurement of stranded optical cable pitch. Background [0002] At present, in the stranded optical cable manufacturing industry, the characteristic points of the target color sleeve are mainly selected manually, and then the length between the feature points is measured by manually holding the steel ruler, and then the pitch measurement of the stranded optical cable is realized. Among them, the production and manufacturing process of stranded optical cables is: 1. Manufactured by stranding at least five different color casings; 2. By constant movement speed and rotation speed, the number of positive rotation and reverse rotation is fixed by the number of turns and then bound by cable ties; the pitch measurement process of stranded optical cables is: for example Figure 1 As shown, a. The spacing between the two commutation points ...

AI Technical Summary

Problems solved by technology

[0003] During the rapid movement of the stranded optical cable, only a small number of feature points can be selected for measurement, so the selection of feature points is arbitrarily large, which is likely to cause measurement errors; and the measurement accuracy of the length measurement meter is poor, if it is bent or tilted during measurement , there will be a large error

In addition, as the production speed of stranded optical cables continues to increase, the danger of manual online measurement is also increasing

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