Focus on: IMDvista-terahertz thin wall packaging

https://www.imdvista.ch/en/products/barrier-testing.php#top

Introducing IMDvista LAYER, a new nondestructive multilayer thickness measurement solution for multi-layer plastic bottles, containers, preforms and thin wall packaging.
LAYER uses terahertz technology to inspect and measure individual layer thicknesses (greater than 10µm with differing refractive indices) in both opaque and translucent plastics in a matter of seconds, nondestructively, with a click of a button.
This off-line system demonstrates both speed and precision to provide measurements for up to 10 layers ranging in thickness from 10µm to 5 mm.
LAYER is an automated quality control system with a repeatable precision accuracy that eliminates human errors resulting from manual cutting of products in manufacturing quality control.
LAYER can measure the thickness of different layers, including the costly, ultra-thin barrier layer with an accuracy of better than +-5µm