{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11940505","patent":{"patent_number":"US-11940505","title":"Omega and theta—a method to measure magnetic field at AC frequencies without using current spinning","assignee":null,"inventors":[],"filing_date":"2022-05-27T00:00:00.000Z","publication_date":"2024-03-26T00:00:00.000Z","cpc_codes":["G01D"],"num_claims":5,"abstract":"We use the AC Hall effect to characterize a magnetic field at an unknown frequency (or frequencies). The current to the Hall sensor is driven at a known frequency f. The output Hall voltage is characterized in a frequency range from f1 to f2 (with f<f1<f2 and f2−f1<2f). This provides a measurement of the magnetic field in a frequency range from f1−f to f2−f. The resulting measurement of magnetic field spectral components is phase-independent and requires no prior knowledge of exact magnetic field frequency."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Omega and theta—a method to measure magnetic field at AC frequencies without using current spinning","description":"We use the AC Hall effect to characterize a magnetic field at an unknown frequency (or frequencies). The current to the Hall sensor is driven at a known frequency f. The output Hall voltage is charact","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11940505","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-11940505","citation_suggestion":"Patentable. \"Omega and theta—a method to measure magnetic field at AC frequencies without using current spinning\" (US-11940505). https://patentable.app/patents/US-11940505","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11940505","json":"https://patentable.app/api/llm-context/US-11940505","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T12:20:00.149Z"}