Method of reliability tolerance design based on EDA technology and its application on DC hybrid contactor

Tolerance design, including tolerance analysis and distribution, is an important part of the electronic system’s reli- ability design. The traditional design needs to construct mathematic model of material circuit, which involves large amount of workload and lacks of practicability. This paper discusses the basic theory of electronic system’s reliability tolerance design and presents a new design method based on EDA (Electronic Design Automatic) software. This method has been validated through the application research on reliability tolerance design of the DC hybrid contactor’s control circuit.

地质背景衬度法在合作—美武一带水系沉积物测量数据处理中的应用

合作—美武一带地处甘肃南部,西秦岭中南部,区内矿山分布较多,地球化学环境复杂,地球化学背景起伏很大,传统方法利用全区数据计算统一异常下限,容易漏掉低背景区强度小但可能致矿的异常而影响找矿效果。笔者在参加合作—美武一带地质矿产远景调查项目过程中,通过在工作区划分地质子区校正地球化学背景有效的解决了特异值对异常下限的影响和地球化学背景高低起伏大的地区低背景区弱小异常的识别问题,并通过在地质背景衬度法计算过程中引入EDA勘查数据分析(EDA)技术对研究区地球化学数据进行处理,有效的克服了矿山分布区特异值对异常下限计算结果的影响。