{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9733641","patent":{"patent_number":"US-9733641","title":"Method and apparatus for performing diagnostics on a conventional control valve","assignee":null,"inventors":[],"filing_date":"2013-10-22T00:00:00.000Z","publication_date":"2017-08-15T00:00:00.000Z","cpc_codes":["G05B"],"num_claims":15,"abstract":"The method comprises obtaining data samples, each data sample comprising a process variable and a controller output for adjusting the process variable to reach a set-point variable; and determining if there is valve jump or stiction by calculating a jump index or a static band index; wherein calculating the jump index comprises calculating a mean of a first set of angles, each angle from the first set of angles being computed from a ratio of: a difference between a peak process variable and its preceding process variable, and, a difference between a controller output corresponding to the peak process variable and its preceding controller output; and wherein calculating the static band index comprises calculating a mean of a second set of angles, each angle of the second set of angles being computed from a difference between a controller output corresponding to a flat process variable and its preceding controller output."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Method and apparatus for performing diagnostics on a conventional control valve","description":"The method comprises obtaining data samples, each data sample comprising a process variable and a controller output for adjusting the process variable to reach a set-point variable; and determining if","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9733641","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-9733641","citation_suggestion":"Patentable. \"Method and apparatus for performing diagnostics on a conventional control valve\" (US-9733641). https://patentable.app/patents/US-9733641","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9733641","json":"https://patentable.app/api/llm-context/US-9733641","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T11:37:17.811Z"}