Measured Tube Average (MTA)

Updated at January 27th, 2026

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Table of Contents

What Does It Do? Customer-Requested MTA Automation The MTA User Interface MTA Buttons in Tube Measure Control Alternative Ways to Show the MTA Window Example MTA Solution From a Customer

What Does It Do?

The MTA feature allows operators to measure the tube, rotate it, measure it again, rotate it, etc. - as many times as they want to. It's super easy to do, and it can significantly impact returning reliable tube shape data for large-diameter tubes.

See Video 76 in VTube-LASER Videos to see MTA in action.

Customer-Requested MTA Automation

The MTA User Interface

MTA Buttons in Tube Measure Control

Alternative Ways to Show the MTA Window

Example MTA Solution From a Customer

A customer had an application that measured the same tube on different sides and obtained varying end lengths of up to 3.33 millimeters (0.131 inches). The solution was to use MTA (Measured Tube Averaging).

These were suggestions to the customer for this issue.

1) Is the End Scan Flier filter on? If it is OFF, I recommend you start by activating that filter. Read this: https://advancedtubular.helpsite.com/articles/121109-vtube-laser-end-scan-flier-filters

2) If you still see a difference after the filter is activated, the problem could be cylinder deformation. The solution to deformation is MTA (described on this page).

3) Finally, the difference could be caused if the end cut is not square to the centerline and the operator scans different parts of the end wall. I doubt that this is the issue. To eliminate this issue, measure the end with the ball in one part of the wall.

The customer proved that MTA was the solution.

tube average