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當(dāng)前位置:首頁(yè)資料下載空心陰極燈 異常現(xiàn)象及處理方法

空心陰極燈 異?,F(xiàn)象及處理方法

發(fā)布時(shí)間:2008/8/25點(diǎn)擊次數(shù):4098

現(xiàn)象

原因

影響

處理方法

1.陰極輝光變(充氖燈由橙紅。粉紅一白光),充氫燈由談紫變白

燈內(nèi)有雜質(zhì)氣體

發(fā)射線減弱,可能同時(shí)有背景發(fā)射

將燈在10—20mA電流下反向放電幾分鐘到半小時(shí),如無(wú)效,再在80—150mA下反向放電,激活吸氣劑

2.屏蔽管發(fā)光

濺射的金屑針狀結(jié)晶或片狀脫落,使陰極與屏蔽管接通

發(fā)射減弱不穩(wěn)定

振動(dòng)燈殼,使接通處斷開(kāi)

 

 

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