Thermography sequences, which are synchronised with the excitation unit, are edited and displayed as a false colour result image by means of a specially developed analysis procedure. Thus, even small defects can be recognised repeatedly and reliably. The selection of the implemented evaluation algorithm largely depends on the material and geometry of the test object as well as on the type of defect to be detected.
Besides InfraTec's high-end camera series ImageIR®, the utilisation of powerful microbolometer cameras for active thermography is another completely unproblematic solution nowadays. The excellent geometrical and thermal resolution of the camera series VarioCAM® High Definition as well as their fast image refresh rate and trigger ability are a perfect basis for the solution of a variety of problems.
Features of IRBIS® 3 active
- Comfortable data evaluation possibilities of image sequences
- Storage of input parameter
- Calculation of phase and amplitude images
- Analysis with different active thermography methods: Quotient Method, Pulse Phase Thermography, Lock-In-Thermography
- Algorithms independent of emissivity
- Storage of input parameters for different test objects
Analysis Methods of IRBIS® 3 active
Quotient method
The heat flow of the test object will be analysed by means of incline or decline of the surface temperature.
Pulse Phase Thermography (PPT)
The temperature curve will be analysed depending on different frequencies (n = 1, 2, 3 ...). One amplitude image and one phase image will be established for each frequency.
Lock-in Thermography (LIT)
The sequences of periodical excitation of the test object will be analysed.
Automated Lock-In measurement with E-LIT from InfraTec
Automated Lock-In measurement with E-LIT from InfraTec
Lock-in Thermography in Electronics and Electrical Engineering
By means of lock-in analysis procedure of InfraTec's IRBIS® 3 active, errors that only cause mK or μK deviations can be reliably detected and assigned to their location:
