Methods and apparatus for detecting cracks in welds

This invention describes a method for finding cracks in metal welds using sound waves. A specialized sound-emitting device, called an ultrasonic phased array probe, is pivotably mounted inside a liquid-filled housing. This housing is then attached to the weld, allowing the device to scan for flaws.

Why it matters: Filed before modern computational power and AI for signal processing. Phased array technology has advanced, enabling more precise and automated crack detection.

Status: ExpiredProtection ended and was never renewed
How hard to build: SpecializedUltrasonic phased array probe, custom housing, electronics.

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