How to measure wire and cable diameter ?

What interests us here is the use of a measuring instrument installed on a production line for continuous measurement. Manufacturers wish to obtain live information on the geometry and possible defects of the manufactured product in order to make adjustments at the earliest possible stage of the process. This is so as to reduce material waste to a minimum and improve the overall quality of their production.

In another article, we explain how to use a measuring device to measure diameter and ovality off-line.

Cable and tube diameter measuring tool

Depending on the type of process (extrusion or fine wire drawing) and the type of product manufactured (wire, cable, pipe), it may be necessary to install several devices on the production line, at the end of the process, or between each step of a process, to control many parameters. Of course, there are a large number of measuring instruments available for this purpose. In this article, we limit ourselves to checking the diameter, ovality and detecting geometrical defects of the coating.

In a harsh production environment (dust, water splashes, fumes), it is important to have equipment capable of withstanding these stresses. Wire or cable vibrations are also a major problem for measuring instruments. The last important point to take into account in the choice of the device for in-line measurement is its acquisition speed. Indeed, in order to detect defects on production lines that are going even faster to increase productivity, it is important to install a very fast device.

Laser micrometer with several axes