Sectorial Scan Phased Array Focusing
Sector beam forming in phased array creates fan-shaped ultrasonic fields to inspect a large area without moving the probe.
Physical-Chemical Mechanism of Action
Sector beam focusing in phased array uses phase shifting of ultrasonic waves to focus them in a specific sector. This creates a fan-shaped sound field directed in one direction.
Metallurgical Relevance & Welding Risks
This technique allows precise and detailed inspection of weld quality. It can detect even smallest pores or cracks, increasing component safety. However, wrong use can lead to inaccurate results if the phase shift isn't set correctly.
Workshop Practice & Action Steps
Use the phased array probe so the fan-shaped beam is directed toward the area to be inspected. Make sure the phase shift is set correctly to get a clear and detailed image. The inspection should be done at least 2-3 mm below the surface to fully detect pores or cracks.