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空心阴极灯的发光原理及电流的选择分享News
空心阴极灯的发光原理及电流的选择分享
发布时间:2019-04-16 点击次数:256次
   空心阴极灯(hollow cathode lamp,HCL)是一种特殊形式的低压气体放电光源,放电集中于阴极空腔内。当在两极之间施加200V-500V电压时,便产生辉光放电。在电场作用下,电子在飞向阳极的途中,与载气原子碰撞并使之电离,放出二次电子,使电子与正离子数目增加,以维持放电。正离子从电场获得动能。如果正离子的动能足以克服金属阴极表面的晶格能,当其撞击在阴极表面时,就可以将原子从晶格中溅射出来。除溅射作用之外,阴极受热也要导致阴极表面元素的热蒸发。溅射与蒸发出来的原子进入空腔内,再与电子、原子、离子等发生第二类碰撞而受到激发,发射出相应元素的特征的共振辐射。与此同时,HCL所发射的谱线中还包含了内充气、阴极材料和杂质元素等谱线。

  YINWEIDENGNEITIANCHONGQITIYALIDI,YALIBIANKUANHENXIAO;YINJIWENDUJIAODI,REBIANKUANYEHENXIAO;TONGSHI,YINWEIQITIMIDUDI,ZIXIBIANKUANYEBUCUNZAI。HCLJIBENMANZUFASHEPUXIANDEBANKUANDUZHAI、PUXIANQIANGDUDAQIEWENDING、PUXIANBEIJINGXIAO、CAOZUOFANGBIANHEJINGJIUNAIYONGDENGRUIXIANGUANGYUANDEJIBENYAOQIU。BINGQIE,DANGCAIYONGJIAODADEDENGDIANLIUSHI,HCLSUOFASHEPUXIANBANKUANDUBIANKUANHEPUXIANQIANGDUZENGGAO,CISHIJIANCEQIDEFUGAOYAJIANGDI,XIGUANGDUDUSHUWENDING

  空心阴极灯灯电流的选择:

  KONGXINYINJIDENGXINGNENGCANSHUBIAOZHONGSUOJICHUDEzuiDADIANLIU,XIZHIKEYIYINGYONGDEzuiDAPINGJUNDIANLIU。ZAIYINGYONGDIAOZHIBOXINGSHI,FENGZHIDIANLIUYINGXIANZHIZAISIBEIYUzuiDADIANLIUFANWEIZHINEI。SHIYONGGAOYUDIANLIUzuiDAZHIJIANGYANZHONGSUODUANDENGDESHOUMINGHUOYINQI*XINGSUNHUAI。DENGDEGONGZUODIANLIUYINGSHIGUANGQIANGDU,XINZAOBIHEDENGDESHOUMINGDEzuiJIAZUHEZHI,DUIYUYIXIEYUANSUZAIJIAOGAODIANLIUXIAKEYITIGONGSHAOHAODEXINZAOBIHEJIAODIDEJIANCHUXIAN,DANZHEIBIRANYINQIFENXILINGMINDUDESUNSHIHEDENGDESHOUMINGDEJIANSHAO。

  YOUYUGAODIANLIUDEPUXIANBIANKUANXIAOYING,YEKEYINQIXIAOZHUNQUXIANDEYANZHONGWANQU。DANGRAN,ZAITUIJIANGONGZUODIANLIUZHIDIDEDIANLIUXIAGONGZUO,SUIRANDENGDESHOUMINGKEYIYANZHANG,DANGUANGQIANGDUJIANGDI,XINZAOBITIAOJIANBIANHUAI。SUIZHESHIYONGSHIJIANDEZENGJIA,DENGDEFUSHEQIANGDUYEJIANGDI,YINCISHIDANGDIZENGJIASHIYONGDIANLIUYESHIBIYAODE。WOYUANCHANPIN,JUNYIBIAOMINGGONGZUODIANLIUHEzuiDASHIYONGDIANLIU,DANCISHUZHIJINGONGYONGHUCANKAO,YINWEIGEDANWEISHIYONGDEYIQIBUTONG,YIQIDENGDIANYUANDESHEJI,YOUZHILIUGONGDIAN,FANGBOGONGDIAN,MAICHONGGONGDIANDENGBUTONGLEIXING,TAMENDUIDENGDESHIYONGHUICHANSHENGBUTONGDEXIAOGUO,YINCI,DENGZAISHIYONGZHIQIAN,YINGZAIJIDINGDEDENGDIANLIUFANWEINEI,GENJUDUIDENGDEWENDINGXING,LINGMINDUDENGTIAOJIANDEYAOQIUZUOHAOzuiJIADENGDIANLIUDEXUANZESHIYAN。GONGZUODIANLIU--ZAINENGGOUXIANGZHUJITIGONGZUGOUNENGLIANGSHI,JINLIANGYONGJIAOXIAODEGONGZUODIANLIU,ZHEISHIFASHEDEZIXISHOUJIAOXIAO,SHICEDINGLINGMINDUJIAOGAOHEXIANXINGFANWEIKUODA,TONGSHIYEYANZHANGDENGDESHOUMING.NENGLIANGDAXIAOHAIQUJUE


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