室外LED燈具可靠性評價方法研究
發(fā)布時間:2018-02-27 17:42
本文關鍵詞: LED燈具 可靠性 壽命 置信水平 出處:《照明工程學報》2016年06期 論文類型:期刊論文
【摘要】:本文介紹了室外LED燈具的可靠性試驗項目,分析了MTTF與樣品數量、置信水平和試驗時間之間的關系,有助于對室外LED燈具的聲稱壽命進行預先判斷;另外還研究了LED燈具系統(tǒng)可靠度與置信水平、樣品數量之間的關系,通過選擇合適的加速壽命試驗項目和樣品數量,可以比較方便的預測出LED燈具的系統(tǒng)可靠度水平。本文的研究結果可以為準確評價室外LED燈具的可靠性提供一定的技術支撐,而且為其壽命預測做出貢獻。
[Abstract]:This paper introduces the reliability test items of outdoor LED lamps and analyzes the relationship between MTTF and sample quantity, confidence level and test time, which is helpful to prejudge the claimed life of outdoor LED lamps. In addition, the relationship between reliability, confidence level and sample quantity of LED lamps system is studied. By selecting suitable accelerated life test items and sample quantity, The system reliability level of LED lamps can be predicted conveniently. The research results in this paper can provide some technical support for the accurate evaluation of the reliability of outdoor LED lamps and contribute to the prediction of their life.
【作者單位】: 必維歐亞電氣技術咨詢服務(上海)有限公司;
【分類號】:TM923.34
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