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ElectroexplosivePerformancesofSCBIgniterwithVaristor
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DUPeikang ,TAN Ming ,LIYong ,ZHOUBin,WANG Jun 1
(1.NanjingUniversityofScienceandTechnology,Nanjing210094,China;2.SichuanHUACHUANIndustriesCompany,Chengdu610106,China)
Abstract:Sincetheelectromagneticenvironmentisgettingmorecomplex,theresearchofigniterelectromagneticprotectionre
ceivesextensiveattention.Inordertostudytheelectroexplosiveperformancesvariations,thevariationofthefiringtimeandthe
firingrequiredenergyweremeaseuredundertheconditionthattheSCBigniterswereinparallelwithvaristors,andcapacitordis
chargeandconstantcurrentexperimentswereadoptedwhenthecapacitance(47μ F)waschargedto22V.Resultsshow that
thereisnosignificantdifferenceintheaboveparametersafterthetypicalSCBigniterinparallelwithvaristor.Butthelowenergy
SCBignitersareaffectedbyvaristorwithlowerbreakdownvoltageinthefiringrequiredenergy.Thefiringrequiredenergyincrease
by14%,whilethefiringtimedoesnotchange.Onthecontrary,intheconstantcurrentdurationof100msexperiment,varistor
hasnosignificantinfluencesonSCBfiringtimeandfiringrequiredenergy,indicatingthatvaristordoesnotaffecttheSCBigniters′
electroexplosiveperformancesdramaticallywhenemployedfortheelectromagneticprotectionoftheSCBigniters.
Keywords:initiator;semiconductorbridge(SCB);varistor;electroexplosiveperformance
CLCnumber:TJ45 Documentcode:A DOI:10.11943/j.issn.10069941.2015.08.014
ChineseJournalofEnergeticMaterials,Vol.23,No.8,2015(781-786) !"#$ www.energeticmaterials.org.cn