pulssitermografia

Pulssitermografia, also known as pulsed thermography or transient thermography, is a non-destructive testing method used to detect subsurface defects in materials. It works by applying a short pulse of thermal energy to the surface of the object being inspected. This energy causes the surface temperature to rise. In areas where the material is uniform and sound, the heat will dissipate evenly into the material. However, if there is a subsurface defect, such as a void, delamination, or inclusion, the heat flow will be altered. The defect will act as an insulator, causing the material above it to heat up more slowly and cool down more quickly than the surrounding sound material. An infrared camera is used to monitor the surface temperature changes over time. By analyzing the thermal contrast between defective and sound areas, the presence, size, and depth of subsurface anomalies can be determined. Pulssitermografia is particularly effective for inspecting composite materials, coatings, and metals. Its advantages include its speed, ability to inspect large areas, and non-contact nature. It is widely used in industries such as aerospace, automotive, and manufacturing for quality control and material characterization.