SYSTEM FOR PROCESSING A FLAME SENSOR OUTPUT SIGNAL
In a flame safeguard control system (10) using a microcomputer (16) the microcomputer responds to the flame signal (22) as provided from a normal flame amplification chain (20) and an analog-to-digital converter (32). A safety backup circuit in the form of a redundant flame signal detection circuit...
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| creator | LANDIS, WILLIAM R PATTON, PAUL B |
| description | In a flame safeguard control system (10) using a microcomputer (16) the microcomputer responds to the flame signal (22) as provided from a normal flame amplification chain (20) and an analog-to-digital converter (32). A safety backup circuit in the form of a redundant flame signal detection circuit (45) analyzes the analog signal being provided to the analog-to-digital converter. In the event that the microcomputer (16) is unable to shut the main fuel valve off, the redundant flame detection circuit becomes operative to deenergize part (62) of a series circuit (62, 36) including the relay (40) for the main fuel valve (11). |
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A safety backup circuit in the form of a redundant flame signal detection circuit (45) analyzes the analog signal being provided to the analog-to-digital converter. In the event that the microcomputer (16) is unable to shut the main fuel valve off, the redundant flame detection circuit becomes operative to deenergize part (62) of a series circuit (62, 36) including the relay (40) for the main fuel valve (11).</description><language>eng</language><subject>BLASTING ; COMBUSTION APPARATUS ; COMBUSTION PROCESSES ; CONTROL OR REGULATING SYSTEMS IN GENERAL ; CONTROLLING ; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS ; HEATING ; LIGHTING ; MECHANICAL ENGINEERING ; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS ; PHYSICS ; REGULATING ; REGULATING OR CONTROLLING COMBUSTION ; WEAPONS</subject><creationdate>1993</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930505&DB=EPODOC&CC=EP&NR=0308831B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19930505&DB=EPODOC&CC=EP&NR=0308831B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LANDIS, WILLIAM R</creatorcontrib><creatorcontrib>PATTON, PAUL B</creatorcontrib><title>SYSTEM FOR PROCESSING A FLAME SENSOR OUTPUT SIGNAL</title><description>In a flame safeguard control system (10) using a microcomputer (16) the microcomputer responds to the flame signal (22) as provided from a normal flame amplification chain (20) and an analog-to-digital converter (32). 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A safety backup circuit in the form of a redundant flame signal detection circuit (45) analyzes the analog signal being provided to the analog-to-digital converter. In the event that the microcomputer (16) is unable to shut the main fuel valve off, the redundant flame detection circuit becomes operative to deenergize part (62) of a series circuit (62, 36) including the relay (40) for the main fuel valve (11).</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | BLASTING COMBUSTION APPARATUS COMBUSTION PROCESSES CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING FUNCTIONAL ELEMENTS OF SUCH SYSTEMS HEATING LIGHTING MECHANICAL ENGINEERING MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING REGULATING OR CONTROLLING COMBUSTION WEAPONS |
| title | SYSTEM FOR PROCESSING A FLAME SENSOR OUTPUT SIGNAL |
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