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高压静电屏蔽服浅谈

来源:上海诚格    时间:2017-11-15    阅读:

一、静电平衡状态下导体的电场

1.静电感应现象:

FANGZAIDIANCHANGZHONGDEDAOTI,QINEIBUZIYOUDIANHEZAIDIANCHANGLIZUOYONGXIADINGXIANGYIDONG,ERSHIDAOTILIANGDUANCHUXIANDENGLIANGYIHAODIANHEDEXIANXIANG.

2.静电平衡状态:

2元彩票DAOTIZHONG(BAOKUOBIAOMIAN)ZIYOUDIANZIBUZAIFASHENGDINGXIANGYIDONG,WOMENJIURENWEIDAOTIDADAOLEJINGDIANPINGHENGZHUANGTAI.

3.静电平衡状态下导体的特点:

(1)CHUYUJINGDIANPINGHENGZHUANGTAIDEDAOTI,NEIBUDECHANGQIANGCHUCHUWEILING.

(2)CHUYUJINGDIANPINGHENGZHUANGTAIDEZHENGGEDAOTISHIYIGEDENGSHITI,TADEBIAOMIANSHIYIGEDENGSHIMIAN.

2元彩票(3)BIAOMIANCHUDECHANGQIANGBUWEILING,BIAOMIANCHUDECHANGQIANGFANGXIANGGENDAOTIBIAOMIANCHUIZHI.

4.导体上电荷的分布:

(1)CHUYUJINGDIANPINGHENGZHUANGTAIDEDAOTI,NEIBUMEIYOUDIANHE,DIANHEZHIFENBUZAIWAIBIAOMIANSHANG.

2元彩票(2)ZAIDAOTIBIAOMIAN,YUEJIANRUIDEWEIZHI,DIANHEDEMIDU(DANWEIMIANJIDEDIANHELIANG)YUEDA,AOXIANDEWEIZHIJIHUWUDIANHE.

ZHUYI:RENYUDADIDOUSHIDAOTI,ZAIRENCHUMODAOTIDEGUOCHENGZHONG,DAIDIANTI、REN、DADIZUCHENGYIGEXINDAOTI,DIQIUWANGWANGSHIXINDAOTIDEYUANDUAN.

二、静电屏蔽

1.DINGYI:DANGJINSHUWAIQIAODADAOJINGDIANPINGHENGSHI,NEIBUMEIYOUDIANCHANG,YINERJINSHUDEWAIQIAOHUIDUIQINEIBUQIPINGBIZUOYONG,SHITANEIBUBUSHOUWAIBUDIANCHANG

YINGXIANGDEXIANXIANG.

2元彩票2.YINGYONG:DIANZIYIQIHEDIANZISHEBEIWAIMIANDOUYOUJINSHUQIAO,TONGXINDIANLANWAIMIANBAOYOUYICENGJINSHUWANG,GAOYAXIANLUDEJIANXIURENYUANYAOCHUANPINGBIFUDENG,DOUSHILIYONGJINGDIANPINGBIXIANXIANGXIAOCHUWAIDIANCHANGDEYINGXIANG.

ZHUYI:JUEYUANQIUQIAOZHONGMEIYOUZIYOUDIANHE,DANGFANGRUWAIDIANCHANGSHI,BUHUIFASHENGJINGDIANGANYINGXIANXIANG,QIAONEICHANGQIANGYEBUHUIWEILING.JIBUNENGQIDAOPINGBIWAIDIANCHANGDEZUOYONG.

三、静电屏蔽的本质

1.导体内部不受外部电场的影响的情况

2元彩票(1)XIANXIANG:YOUYUJINGDIANGANYING,YANDIANQIBOPIANZHANGKAI.RUTU1JIA,JIANGYANDIANQIFANGRUDAOTIWANGZHAONEIBUHOUYANDIANQIBOPIANBUZHANGKAI,RUTU1YI,JIWAIBUDIANCHANGYINGXIANGBUDAODAOTINEIBU.

2元彩票(2)BENZHI:SHIJINGDIANGANYING,DAOTIWAIBIAOMIANGANYINGDIANHEYUWAIDIANCHANGZAIDAOTINEIBURENYIDIANDECHANGQIANGDEDIEJIAJIEGUOWEILING.

2.接地导体壳内部电场对壳外空间无影响情况

 

(1)现象:

RUTU2JIADAOTIQIAOMEIYOUJIEDISHI,CHUYUNEIBUDIANCHANGZHONG,DADAOJINGDIANPINGHENG,DAOTIQIAONEIWAIBIAOMIANCHUXIANDENGLIANGYIZHONGDIANHE,QIAONEIWAIBIAOMIANZHIJIANCHANGQIANGCHUCHUWEILING,QIAOWAICHANGQIANGBUWEILING.DAOTIQIAOJIEDIHOU,RUTU2YISUOSHI,DAOTIQIAOWAIDEZHENGDIANHEBEIDADIFUDIANHEZHONGHE,ZHENGDIANHECHUXIANZAIDIQIUDELINGYIDUANWUQIONGYUANCHU,DAOTIQIAONEIWAIBIAOMIANZHIJIANJIDAOTIWAIBUCHANGQIANGCHUCHUWEILING,DAOTIWAIBUKONGJIANBUSHOUNEIBUDIANCHANGYINGXIANG.

(2)本质:

2元彩票RENGRANSHIJINGDIANGANYING,SHIDAOTINEIBIAOMIANGANYINGDIANHEYUQIAONEIDIANHEZAIDAOTIQIAOBIAOMIANYIWAIKONGJIANDIEJIAJIEGUOWEILING.

ZHUYI:CHUYUJINGDIANPINGHENGDEDAOTI,NEIBUCHANGQIANGWEILING,DANDIANSHIBUYIDINGWEILING.

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