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NDT and TSA with active thermography

Active thermography most commonly known as flash thermography and pulse thermography is an effective method for non-destructive testing of various materials. This technique detects not only smallest defects on surfaces, but also structural defects or air bullets under the component surface. Contrary to other inspection methods, flash thermography or pulse thermography solutions are well-suited for inspections of latest materials like composite materials (GFK/CFK).

Active thermography also includes Lock-In Analysis, Pulse Analysis, TSA (Thermoelastic Stress Analysis).


1. A heat source gives the inspected material a thermal excitation.


2. The flow of thermal energy through the material has a direct influence on the temperature development on the object's surface.


3. If the temperature development on the surface is recorded over a certain period of time with an infrared camera and a mathematical analysis is applied to the acquired data. Then, if the processed data is displayed as an image, this image will provide us with information about the internal structure of the material or about possible defects in it.

Application Notes, Papers

C-CheckIR - Brochure (eng)

IrNDT - Brochure (eng)

irndt application overview web


IrNDT is a high-quality solution for non-destructive testing of various materials. The setup attracts by its modular architecture and supports all known NDT techniques .


The mobile inspection system called C-CheckIR uses active thermography for the reliable detection of delaminations, water inclusions, debondings, etc. in composite materials.


Ournew uncooled infrared camera, specially developed for NDI-tasks, offers a thermal sensitivity expected of thermal imagers with cryogenically cooled detectors. Moreover, all required components and functions have already been integrated into the inspection-head.

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