火工品2023年08月INITIATORS&PYROTECHNICS文章编号：1003-1480（2023）04-0019-052023年第4期半导体桥火工品静电响应特性研究丁跃伟，丁茂元，赵伶俐，王者军，吴瑞德，陈震（陕西应用物理化学研究所，陕西西安，710061）摘要：为明确半导体桥火工品发火感度与静电感度的关系，以及并联TVS二极管时的分流规律，按照GJB5309.14-2004火工品试验方法第14部分：静电放电试验和GJB/Z377A-1994感度试验用数理统计方法对半导体桥火工品静电加载后的阻值变化、桥区损伤以及感应能量进行了测试与表征，同时对发火感度进行了测试，拟合出电压与能量方程式。结果表明：采用50%发火电压计算出的静电感度与实测静电感度的偏差约10%；静电放电经TVS二极管分流后加载到半导体桥火工品上的电流约为总电流的40%，而加载到火工品上的能量占比随静电放电电压的增大而减小。关键词：火工品；半导体桥；静电感度；发火感度；TVS二极管中图分类号：TJ45+2ResearchonElectrostaticResponseCharacteristicsofSemiconductorBridgeDetonatorDINGYue-wei,DINGMao-yuan,ZHAOLing-li,WANGZhe-jun,WURui-de,CHENZhen(ShaanxiAppliedPhysicsandChemistryResearchInstitute,Xi'an,710061)Abstract:Inordertoclarifytherelationshipbetweentheignitionsensitivityandtheelectrostaticsensitivityofsemi-conductorbridge(SCB)detonator,aswellasthecurrentdistributionlawofparallelTVSdiode,theresistancevaluechange,bridgeareadamage,andtheenergyloadedontheSCBdetonatorweretestedandcharacterized,accordingtoGJB5309.14-2004testmethodsforinitiatingdetonatorPart14:electrostaticdischargetestandGJB/Z377A-1994mathematicalstatisticalmethodsforsensitivitytest.Meanwhile,theignitionsensitivitywastested,thevoltageandenergyequationswerefittedrespectivelybasedonthetestresults.Theresultsshowthatthedeviationisabout10%betweenthecalculatedelectrostaticsensitivityinaccordancewith50%firingvoltageandthemeasuredelectrostaticsensitivity;AftertheelectrostaticdischargeisshuntedbyTVSdiode,thecurrentloadedontheSCBdetonatorisabout40%ofthetotalcurrent,andtheenergyloadedonthedetonatordecreaseswiththeincreaseoftheelectrostaticdischargevoltage.Keywords:Initiatingexplosivedevice;Semiconductorbridge;Electrostaticsensitivity;Ignitionsensitivi...
