| 摘要 |
The length of a flexible web or string material, such as a textile material, which forms a wound body or roll 10, may be determined by determining a first measure of the weight of the web or string material, determining a second measure of the weight of a predetermined length 1 of the material, and calculating the total length of the flexible web or string material on the basis of said predetermined length 1 and the first and second weight measures. Thus, a roll 10 of a textile material may be placed on a table 12 divided into sections or parts, the first part 11 of which supports the roll while a second part 14 supports the predetermined length 1 of the material. The second table part and the web material arranged thereon may be supported by a weighing cell, and the whole table 12 and the web material or textile material arranged thereon may be supported by another weighing cell. Weighing signals from these weighing cells may be supplied to a calculating device 27 which calculates the total length of the web material. <IMAGE>
|
