OTvis Product Family
Optically excited lock-in thermography for precise non-destructive testing
Reveal hidden defects across large areas without contact. OTvis systems use optically excited lock-in thermography for reliable, non-contact inspection of fiber-reinforced composites and other materials. Periodically modulated light generates thermal waves within the component. Delaminations, inclusions, corrosion, variations in wall thickness or defects in adhesive bonds disturb the heat flow and can be detected by an infrared camera and evaluated using dedicated software.
The method is particularly suitable for large-area inspections and complex component geometries, providing depth-resolved information about hidden defects.
The OTvis product family ranges from the compact OTvis 3600 for flexible inspection tasks and the fully integrated OTcam 3600 PRO for mobile and automated inspections to powerful 4, 6 and 8 kW systems for larger inspection areas, laboratory applications and industrial production environments. The OTcam combines optical excitation, infrared imaging and lock-in thermography within one compact all-in-one inspection head and can also be integrated directly into robotic systems.
For more information about OTvis, visit the edevis website.
Product Variants
Product highlights
Technical information
| Inspection method: | Optically excited lock-in thermography |
| Excitation: | Periodically modulated light |
| Excitation source: | Halogen lamps |
| System power: | 3.6 to 8 kW, depending on system variant |
| Detection: | Infrared camera with MWIR or LWIR detector |
| Signal evaluation: | Phase-image analysis using Fourier transformation |
| System concept: | Modular systems as well as fully integrated all-in-one solution with OTcam 3600 PRO |
| Software: | DisplayImg Elements or DisplayImg Professional, depending on system variant |
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Application notes
Non-Destructive Inspection of Carbon Bicycle Components
Carbon frames, handlebars and rims can contain internal defects that are not visible from the outside. Optically excited lock-in thermography enables non-destructive detection of delaminations, porosity, dry areas or fiber waviness.
Condition Assessment of CFRP Structures in Motorsport
CFRP components in motorsport are exposed to high mechanical loads, while internal damage is often invisible from the outside. Active thermography enables non-destructive inspection of monocoques, suspension components and other structural parts.
Detecting Delamination in Ceramic Brake Discs at an Early Stage
A reliable bond between the friction layer and carrier is essential for the safe performance of ceramic brake discs. Thermography enables non-destructive detection of initial delamination and allows its development to be documented throughout lifetime testing.