环境应力筛选,ESS
1)ESS[英][es][美][?s]环境应力筛选
1.Investigation of the Relevant Problems about ESS;环境应力筛选有关问题的探讨
2.Research on the ESS of Electronic Products;电子产品中的环境应力筛选研究
3.The reasons why improper environmental stress screening(ESS) can damage the product were briefly analyzed.简要分析了不适当的环境应力筛选会对产品造成损害的原因,在此基础上文中对由气锤式六自由度振动台和电动振动台所构建的综合试验设备的优缺点进行了分析、比较,并论证环境应力筛选(ESS)应针对专门产品的试验应力进行控制的观点,提出应注重多件样品振动应力一致性的要求。
英文短句/例句

1.Analysis of Acceleration Factor Models of Thermal Cycle for Environmental Stress Screening环境应力筛选中的温度循环加速因子模型分析
2.Environmental Stress Screening Technology of Electronics and its Application Problems电子产品环境应力筛选技术及其应用问题分析
3.The Suppliers Selection & Maintenance in Supply Chain Management;论供应链管理环境下供应商的筛选及维系
4.Screening of Environment Factors Responsive Genes Via Suppressive Subtractive Hybridization Technique from Alexandrium catenella应用抑制性消减杂交技术筛选链状亚历山大藻环境条件响应基因
5.Screening and Identification of Bacteria from Hydrothermal Vents and Their Responsive Mechanism to the Deep-sea Environment深海热液区微生物的筛选鉴定及对深海环境的响应机制
6.Application of Gene Recombinant Yeast Cell in Screening to Environmental Estrogen基因重组酵母测评系统在筛选环境样品雌激素活性中的应用研究
7.Analysis and Comparison of Several Sieve Methods on Prime Number Searching with MatlabMatlab环境下素数筛选算法的分析及比较
8.STUDY ON THE METHOD OF EIA CLSSIFICATION SCREENING FOR CONSTRUCTIVE PROJECTS建设项目环境影响评价类别筛选方法的研究
9.Discussing on the Filtering Method of Prior Controlled Organic Pollutants in Water水环境优先控制有机污染物的筛选方法探讨
10.The Research on High-throughout Screening Environmental Estrogens高通量筛选环境雌激素类化合物的方法学研究
11.The Initial Screening of Arsenic Resistance Bacterial of the Highly Arsenic Environment of Kuitun, Xinjiang新疆奎屯地区高砷环境中抗砷菌的初步筛选
12.Establishment of Genetic Transformation System via Environmental-friendly Approaches环境安全型筛选标记遗传转化体系的建立
13.Selection of Cellulose Degradation Microbial Floras in Environment and Analysis of Degradation Capability环境中纤维素降解菌群的筛选与降解活性分析
14.Screening of Antagonistica Actinomycetes from Changbai Mountain Area长白山地区不同海拔环境拮抗放线菌的筛选
15.Preparation of Polyclonal Mice Antiserum Against Goldfish Vitellogenin and the Application in the Detection of Pesticide with Environmental Estrogens Activities金鱼卵黄原蛋白多克隆抗血清的制备及在农药环境雌激素活性筛选中的应用
16.Screening of Environmental Factors Responsive Genes from Alexandrium Catenella and the Isolation and Identification of Nanoplanktonic Algae from the North Yellow Sea链状亚历山大藻环境条件响应基因的筛选及我国北黄海海域微型藻的分离鉴定
17.Microcomputer Jidan Baohu Installment Stress Screening Conditiondiscussion;微机继电保护装置应力筛选条件探讨
18.Indexes of China S&T Parks;国家高新区投资软环境评价指标的理论遴选与实证筛选
相关短句/例句

Environmental stress screening环境应力筛选
1.Applications and developments of environmental stress screening(ESS);环境应力筛选技术及其应用和发展综述
2.Environmental Stress Screening and Products Reliability;环境应力筛选与产品可靠性
3.Firstly,the situation of excessive dynamic stress during vibration test of environmental stress screening for an air-air missile flight control cabin was introduced.首先介绍空空导弹飞控舱环境应力筛选随机振动试验过程中出现振动过应力的情况,然后对出现振动过应力的原因进行了分析。
3)environment stress screen环境应力筛选
1.In order to accomplish the environment stress screen of space borne infrared detectors and study the failure mechanism dur-ing the course of thermal cycle,the thermal cycle system,based on singlechip is introduced in this paper.由于航天工程的需要,为了对航天用红外探测器进行环境应力筛选并研究器件在高低温循环过程中的失效机理,本文提出了一种基于单片机控制的温度循环试验自动控制系统。
2.The environment stress screen of cables outside of satellite has been tested against the temperature shocks of 200 ℃ temperature difference.为考察航天器外露电缆能否承受低于-140℃的温度,特别是温差近200℃的温度冲击,进行了星用外露电缆线的环境应力筛选(ESS)试验工作。
3.Imported defect is one of key parameters in the quantified environment stress screening.引入缺陷是定量环境应力筛选的关键参数之一。
4)Environmental-Stress-Degradation-Screening(ESDS)环境应力退化筛选
5)HASS高加速环境应力筛选
6)quantitative ESS定量环境应力筛选
延伸阅读

环境应力筛选环境应力筛选environment Stress screening; ESS  度变的次筛选大于次。扫频或遗度度:0 .4选的步说包括,境应得到主)变化速率不容易,也没有必要,在设备级上一般铸化率为5℃/而n一10℃l而n。④高低温循环进朽数。次数增加可提高筛选效果。一般元器件级守循环次数大于组件级的次数,组件级的循环次郑设备级。如果设备内元器件多,则应增加循环次 研究表明,采用随机振动筛选的效果要高于正弦振动和定频正弦振动。在不造成对产品破均留隐患情况下,随机振动的振动量值〔用功率痊t,单位为(mls)/HZ」高一些的效果好。一般耳(Inls)IH:,每次振动synm一15而n。 元器件级的环境应力筛选,是属于元器件洲一个组成部分,其实施要求和过程,这里不做进一明。组件级或设备级的环境应力筛选过程(图2缺陷剔除试验和无故障试验两个部分。产品的习力筛选已得到了广泛的应用,它使产品的可靠相显著提高。(戴慈内部的不良元器件和工艺缺陷激发成早期故障,并通过检验、予以排除(或剔除)的过程。是可幸性试验的一种类型,也是产品制造过程中的一道工序。 环境应力筛选可针对不同的组装等级(设备级,组件级和元器件级)实施。环境应力筛选的应力主要选择温度(高低温)循环和随机振动应力,因为这两种应力筛选效果较好,能暴礴产品各组装等级大部分故障。其他可供选择的应力还有湿度、冲击等应力。研究表明“高低温循环”对产品进行筛选效果取决于4方面(图l): 温度一个完整循环高温设定值断电断电高温保减室温子通电低温设定值低温保持h以扣】i叩yi叩1 1 shoixuan环境应力筛选(~nt。tn尧如sc~ng;ESS)通过向电子产品(设备、组件、元器件)施加有效的环境应力(应与极限工作应力结合施加),将其 OJ一-一-一-一一-一~卜时间 图1温度循环图 ①高低温循环中高温、低温的设定值。在合适的情况下,高温越高、低温越低的效果较好。在产品筛选中元器件高温值要高于组件级,组件级高温值要高于设备级。②高温、低温段保持的时间长短。以产品内部温度达到稳定为准。如过长时间停留在高、低温度段,筛选效果无明显提高。③高温至低温和低温至高温的变化速率大小。变化速率大则筛选效果好。通常元器件级筛选温度变化速率高于组件级,组件级温度变化速率高于设备级。