Thesa

Full Radiometric Software Suite for Lock-in Thermography Applications

Camera systems for non-contact imaging of stress in materials and structures. Based upon a high performance focal plane array camera and digital image processing software the Thesa system produces high quality images of stress field in materials and structures under dynamic loading conditions.

Thesa Software Suite Includes:

• Non-contact measurement technique: Thesa software uses the FLIR SC5000 Series & SC7000 Series which provides thermal images of the scene at fast frame rate. The transformation of these thermal Images into stress images is calculated in second by software, without any contact with the material surface.
  
• Full-field stress imaging in real time: Thesa software provides full field stress images in real time by using the thermoelastic effect which states there is a linear relationship between the temperature changes induced by loading and the stress at the material surface. The required thermal resolution to achieve a resolution of 1 MPa depends on the material properties; it is typically equal to 1 mK for steel and 2 mK for aluminum.
  
• Versatile loading capability even with large displacement: Thesa software allows testing of structural components undertaking random, transient or dynamic loading. In some applications where there can be large displacement, a software feature is available to provide accurate motion compensation.
  
• Fast measurement of fatigue limit: The assessment of heat dissipation on a structure under dynamic loading can give information on the damage mechanism involved. The D-MODE, which is available with Thesa, allows measurement of the dissipated energy. A unique application of this technique is the fast determination of fatigue limit in engineering materials.

Features and benefits:

• Lock-in thermography processing for Stress Analysis, Electronics and Non-Destructive Evaluation
• Operates with SC5000 & SC7000 infrared cameras series
• Complex structures undergoing real loading
• Advanced Large motion displacement compensation
• Temporal stress analysis
• Random & transient loading
• Dissipated energy measurement
• Motion compensation

Wide range of application areas: