Thermographic Pulse Phase Transformation
Thermographic pulse-phase transformation analyzes temperature profiles to detect depth-dependent flaws. It converts time data into frequency data for more precise defect diagnosis.
Physical-Chemical Mechanism of Action
Thermographic pulse-phase transformation uses Fourier transformation to convert time-dependent temperature fields into the frequency domain. This makes it possible to better detect depth-dependent defects such as inhomogeneities or layerings.
Metallurgical Relevance & Risks in Welding
In the weld seam, the temperature distribution in depth can be affected, leading to uneven stresses and possible cracks. The transformation helps to identify and correct such depth-dependent defects early.
Workshop Practice & Instructions
To successfully use thermographic pulse-phase transformation, you should:
1. Record the temperature curves during the welding process precisely.
2. Convert the data into the frequency domain using Fourier transformation.
3. Analyze the resulting frequency data for anomalies or depth-dependent defects.
4. Take corrective action if uneven stresses or potential cracks are detected.