Lock-in Thermography
OTvis
Testing methods
Discover our established active thermography methods – from laser, induction, and lock-in to ultrasonic thermography. Ideal for reliable, non-destructive material testing in the lab and in production. Full transparency. Fast. Automatable.
Optical thermography
The test objects are excited using halogen or flash lamps.
These methods are particularly well suited for large-area inspections and reveal fine defects on surfaces and in adhesive bonds.
These methods are particularly well suited for large-area inspections and reveal fine defects on surfaces and in adhesive bonds.
Laser thermography
With a precise laser beam, thermal signals are generated locally or in motion.
Ideal for precise testing of welds, cracks or hardening.
Ideal for precise testing of welds, cracks or hardening.
Induction thermography
Inductive eddy currents generate heat inside conductive materials.
Particularly effective in detecting cracks and welding defects in metals.
Particularly effective in detecting cracks and welding defects in metals.
Mechanical thermography
Mechanical energy, such as ultrasound, stimulates the material.
This makes it possible to make internal defects visible — even with complex structures or damping materials.
This makes it possible to make internal defects visible — even with complex structures or damping materials.
Lock-in thermography
Lock-in thermography
Deep dive into lock‑in thermography
Using our OTvis systems, Alexander Dillenz shows how lock‑in thermography works and then evaluates the test results using DisplayImg 7 software.
Learn more
Do you have questions about our thermography methods?
Whether pulse, lock‑in or inductive thermography. We help you find the right solution for your testing task. In a non-binding initial consultation, we’ll answer your questions, explain the methods, and recommend the approach that best suits your needs.
FAQ
Our frequently asked questions — answered quickly and easily.