![]() 238000010168 coupling process Methods 0.000 claims description 20.239000002131 composite material Substances 0.000 claims abstract description 68.238000001514 detection method Methods 0.000 title claims description 38.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority claimed from US272181A external-priority patent/US3891843A/en Application filed by Sanders Associates Inc filed Critical Sanders Associates Inc Priority to US04/399,111 priority Critical patent/US3931515A/en Application granted granted Critical Publication of US3931515A publication Critical patent/US3931515A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Sanders Associates Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Parkin Current Assignee (The listed assignees may be inaccurate. ![]() Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US04/399,111 Inventor William J. Google Patents Radiant energy detection apparatusÄownload PDF Info Publication number US3931515A US3931515A US04/399,111 US39911164A US3931515A US 3931515 A US3931515 A US 3931515A US 39911164 A US39911164 A US 39911164A US 3931515 A US3931515 A US 3931515A Authority US United States Prior art keywords impedance detector signal bias output Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3931515A - Radiant energy detection apparatus US3931515A - Radiant energy detection apparatus
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