体彩天下 XIANSHEBEIWAIQIAOCHANGJIADEXIAOBIANWEININJIESHAODIANZIJIXIANGJINSHUWAIQIAODEPINGBISHEJI:
DIANZIJIXIANGYUNYONGYUELAIYUEGUANGFAN,LVDAOTIQIJIANDEGUANGFANSHIYONGHEWEIDIANZIJISHUDEFEISUFAZHAN,SHIZHENGJITIJIRIYIQUXIAOXINGHUA。YINCIJINEILINGBUJIANZHIJIANCHANSHENGDEGELEIGANRAOYEHUIZENGJIA,TONGSHIYEGENGRONGYISHOUDAOGEZHONGWAIJIECHANGDEGANRAO。WEISHIZHENGJIZHENGCHANGGONGZUO,CAIYONGPINGBILAIYIZHIGELEIGANRAOSHIXINGZHIYOUXIAODEFANGFA。PINGBIKEFENWEI:DIANPINGBI、CIPINGBIHEDIANCIPINGBI;
(1)电屏蔽
由于两个系统之间存在分布电容,通过后就会产生静电千扰。用良好接地的金属外壳或金属板将两个系统隔离,是抑制静电干扰的有效方法。(2)磁屏蔽
CAIYONGPINGBIZHAO,KEYIDUIDIPINJIAOBIANCICHANGJIHENGDINGCICHANGCHANSHENGDEGANRAOQIDAOYIZHIZUOYONG,PINGBIZHAOBACILIXIANXIANZHIZAIPINGBITINEI,FANGZHICILIXIANKUOSANDAOWAIBUKONGJIAN。PINGBIZHAOYINGDANGXUANYONGDAOCILVJIAOGAODEJINSHUCAILIAO.RUGANG、TIE、NIEHEJINDENG。TONG、LVCAILIAODUICIPINGBIDEXIAOGUOJICHA。
采用完全封闭的金属外壳,可以对高频磁场〔即辐射磁场)产生抑制作用,起到良好的电磁屏蔽效果。但封闭的金属壳需要散热,外壳上有通风孔使电磁屏蔽的效果变差。为解决这一矛盾,可以在通风孔处另加金属网。
ZAIZHENGJIMAOYISHEJIZHONG,YINGGAIGENJUZHENGJITEDIAN、SHIYONGHUANJINGDENGYINSU,LINGHUOYUNYONGSHANGSHUSANZHONGPINGBICUOSHI。XIANRAN,CAIYONGJINSHUJIXIANGDEDIANZISHEBEI,PINGBIWENTIBIJIAORONGYIJIEJUE。JINNIANLAIFEIJINSHUCAILIAOJINSHUHUADEGONGYIJISHUYOULEHENDAJINBU,DUIYONGSULIAOZHUSUCHENGXINGDEJIXIANGCAIYONGZHENKONGDUMOJISHU,ZAINEIBISHANGZHENGFACHENZHEYICENGJINSHUMO,KEYISHISULIAOJIXIANGDEDIANCIPINGBIXIAOGUODEDAOMINGXIANDEGAISHAN。
XUYAOTEBIEZHUYI:SHIYONGPINGBIXIANSHI,BIXUJIANGPINGBICENGLIANGHAOJIEDI。JIARUPINGBICENGWEIJIEDIHUOZHEJIEDIBULIANG,JIUKENENGCHANSHENGJISHENGHUOHEZUOYONG,DUIDAOXIANYINRUBIBUYONGPINGBIXIANHAIYAOYANZHONGDEGANRAO。
体彩天下 YISHANGDEWENZHANG,XIANSHEBEIWAIQIAOCHANGJIADEXIAOBIANJIUJIDAJIAJIANGSHUDAOZHEIGEDIFANG,GANXIEDAJIADEYUEDU,JIARUNIYEYOUZHEIFANGMIANDEXUQIUDEHUAHUANYINGNINSUISHIDENGLUWOGONGSIDEWANGZHI,WOMENHUIBUDINGDEZAIWANGZHANSHANGMIANFABUGUANYUZHEIFANGMIANDEWENZHANGYUDAJIAGONGXIANG!