{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8466674","patent":{"patent_number":"US-8466674","title":"Magnetic testing method and magnetic testing apparatus","assignee":null,"inventors":[],"filing_date":"2009-05-14T00:00:00.000Z","publication_date":"2013-06-18T00:00:00.000Z","cpc_codes":["G01N","G01N"],"num_claims":8,"abstract":"A magnetic testing apparatus has a magnetizing device applying a rotating magnetic field to a material to be tested, a testing signal detecting device, and a signal processing device applying signal processing to the testing signal. The signal processing device has a first synchronous detecting device detecting a testing signal by using the first current as a reference signal, a second synchronous detecting device detecting an output signal of the first synchronous detecting device by using the second current as a reference signal to extract a candidate flaw signal, and a testing image display device displaying a testing image in which each of pixels has a gray level corresponding to an intensity of the candidate flaw signal at each of positions of the material to be tested, and a phase of the candidate flaw signal at each of the positions is capable of being identified."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Magnetic testing method and magnetic testing apparatus","description":"A magnetic testing apparatus has a magnetizing device applying a rotating magnetic field to a material to be tested, a testing signal detecting device, and a signal processing device applying signal p","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8466674","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-8466674","citation_suggestion":"Patentable. \"Magnetic testing method and magnetic testing apparatus\" (US-8466674). https://patentable.app/patents/US-8466674","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8466674","json":"https://patentable.app/api/llm-context/US-8466674","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T09:18:13.898Z"}