{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11480554","patent":{"patent_number":"US-11480554","title":"Photoionization detector automated zero level calibration","assignee":null,"inventors":[],"filing_date":"2021-02-16T00:00:00.000Z","publication_date":"2022-10-25T00:00:00.000Z","cpc_codes":["G01N","G01N","G01N","G01N","G01N","G01N"],"num_claims":14,"abstract":"A method of detecting gas includes determining and storing, by a controller, a zero level of a photoionization detector using ambient air inflow when an ultraviolet lamp is in a turned OFF state, wherein the stored zero level is based on an ambient temperature; sampling, by the controller, an output of a detector electrode of the photoionization detector when the ultraviolet lamp is in a turned ON state; and comparing the sampled output of the detector electrode to the stored zero level to determine if a threshold concentration of a gas is present."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"Photoionization detector automated zero level calibration","description":"A method of detecting gas includes determining and storing, by a controller, a zero level of a photoionization detector using ambient air inflow when an ultraviolet lamp is in a turned OFF state, wher","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11480554","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-11480554","citation_suggestion":"Patentable. \"Photoionization detector automated zero level calibration\" (US-11480554). https://patentable.app/patents/US-11480554","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11480554","json":"https://patentable.app/api/llm-context/US-11480554","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T14:46:40.617Z"}