Resonance eddy detection method for surface crack

Abstract

This invention relates to crack resonance whorl testing method, which belongs to iron magnetic material lossless electro-magnetic testing field. This invention uses resonance circuit to generate pulse resonance signals to excite sensor ring to get whorl field to judge the crack existence through test ring. The advantage lies in improving extracting highness and overcomes the rough surface impact to realize spot test to fulfill traditional testing rough crack.

Description

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AI Technical Summary

Benefits of technology

This patented technology allows for better monitoring on surfaces during manufacturing operations while avoiding many disadvantages associated therewith like requiring complicated equipment or slow downs due to frequent maintenance. It achieves these benefits through an improved sensitivity compared to previous techniques used alone (such as magnetic induction), allowing for more accurate damage assessment even when complex materials are involved. Additionally, its ability to distinguish between harmful particles from those being observed does not require advanced mathematical calculations. Overall, this new technique provides efficient ways to monitor large areas quickly overcomes challenges related to conventional systems.

Problems solved by technology

This patents discuss different techniques used for inspecting surfaces with flaws (cracks) caused from corrosion processes. These techniques involve measuring changes over an area called fracture, including deformation due to external forces like pressure waves and impact force. Ultrasound technology provides precise measurements while minimizing environmental concerns compared to traditional visual tests. Additionally, penetance testing requires complete removal of all parts without leaving any residue behind. There may exist issues related to rustiness and damage within certain areas where these challenges cannot be met quickly enough. Therefore, this patented technique involves combining both acoustical wave propagation and electrostatic induction into one system.

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