Automated Multi-layer Coating measurements systems with Terahertz Technology

The Challenge: Outdated Manual Inspection Methods

In today’s fast-paced automotive industry, maintaining paint quality is essential for both aesthetics and durability. However, many paint shops still rely on manual, slow, and error-prone inspection methods, which:
- Are incompatible with modern automation systems
- Cannot accurately measure multiple paint layers
- Cause 1–5% vehicle rejections due to inconsistent coating quality
This leads to costly reworks, wasted materials, and a negative impact on production efficiency and sustainability.

Our Solution: THz-Based Coating Inspection System
At Teralumen Solutions, we’re transforming coating measurement with our advanced Terahertz-Time Domain system. A powerful Terahertz Non-Destructive Testing (NDT) device designed to measure precisely.
Key Features of Our THz System:
- Multi-Layer Thickness
In a single scan, all layer’s thicknesses can be measured automatically.
- Micron-Level Precision
Accurately measures individual layers: primer, basecoat, and clear coat—even on curved surfaces.
- Real-Time Measurement
Seamlessly integrates with robotic arms and production lines for continuous, contactless inspection.
- Defect & Delamination Detection
Identifies hidden defects such as poor adhesion or air pockets that traditional methods can’t detect.
How It Works

- THz Waves Penetrate Paint Layers:
THz pulses are transmitted through all paint layers without damaging the surface. - Reflections Are Captured & Analyzed:
Each layer’s boundary generates a reflection due to change in polymer density, enabling precise thickness and defect analysis. - Instant Display of Results:
The Time-of-Flight of Terahertz waves are converted into thickness values and are shown in real time — allowing immediate feedback and action.
Unlike traditional destructive tests, THz technology enables non-contact, inline analysis — without halting production — making it ideal for modern, automated paint shops.
Key Benefits
By implementing terahertz technology, manufacturers can achieve up to 15% cost savings and reduce energy consumption per car. It helps to minimize defects and manual errors through inline robotic integration and operates with a user-friendly interface.


Fast &
Accurate

Harmless
Terahertz waves

Single and Multi-
Layer Measurement

Upto 3 THz
bandwidth for
highest precision
and repeatability

Any Base
Material

User centric
software

CONCLUSION for Automated Multi-layer Coating measurements systems

Teralumen delivers advanced terahertz inspection systems designed for automotive paint shops quality control. Our technology enables real-time, multi-layer coating thickness measurement with unmatched accuracy and safety — helping manufacturers to reduce defects, energy consumption and improve producitivity.
