一种新型微机械硅弹簧的设计与制作

介绍了一种新型的微机械硅弹簧的设计和制作,运用能量方法推导出了弹性常数的计算公式,并用有限元模拟分析方法求出了其固有频率。有限元模拟工具ANSYS模拟的结果验证了弹性常数的计算公式,理论分析和实际加工表明设计方案是可行的。     

接入网设备的功耗指标及测试方法

介绍了2011年报批的5个接入网节能标准和技术报告中提出的接入网设备功耗指标和测试方法;阐述了ADSL,VDSL2,EPON和GPON4种类型的接入网设备功耗指标的制定原则和具体含义,以及测试方法的要点;分析了功耗限定值、能效指数和能效等级的含义。     

Determination of Optical Constant and Thickness for Thin Film by Using Improved FTM

A new method to determine the optical constant and thickness of thin films is proposed. Based on the Fresnel＇s optical expression, the improved flexible tolerance method（FTM） is employed in the case of a digital model of thin film to fit the curve of measured reflectance spectrum. The simulation results show a satisfactory correlation of the optical constant with the thickness of the target film. By taking the influence of nonlinear condition into account as well as more direct and indirect limitation, the precision and value-searching efficiency have been improved. Furthermore, the problem of dimension degradation, which exists in “Downhill Simplex”, has been successfully avoided. No initial input is needed for the procedure of optimization to achieve optical solution, which makes the whole processing of value calculation much more convenient and efficient.     

LCoS光引擎成像测试实验方法及结果分析

光引擎是硅基液晶（LCoS）投影显示系统的核心部件。为了掌握LCoS光引擎各组件的实际工作情况,了解实际装配过程中的误差对成像质量的影响,以被广泛使用的三片式ColorQuadTM结构LCoS光引擎为例,介绍了一种通过在光学平台上搭建系统光路来进行LCoS光引擎成像测试的实验方法。先进行光源模组、分光合光、投影成像这三...     

晶体管恒流全新触发连续固体激光器的氪灯电源

介绍一种晶体管恒流全新触发连续固体激光器氪灯电源。先用一较高电压的辅助电源触发氪灯进入辉光放电 ,然后接通主电源 ,通过控制电路使氪灯自动过渡到弧光放电。为使氪灯正常工作电流恒定 ,光强稳定 ,采用晶体管恒流电路控制氪灯电流 ,从而使整机电路简化     

军用电子设备可靠性试验方法的确定及研究

可靠性试验是对产品的可靠性进行调查、分析和评价的一种手段。针对目前可靠性试验中的薄弱环节,文章对可靠性试验进行了研究,阐述了军用电子设备如何制定可靠性的试验方案及程序,介绍了可靠性试验的制定原则和试验方法。     

基于ECRS分析法的光学载荷发射场测试流程设计和优化

ECRS分析法是取消、合并、重排和简化英文首字母的简称,该方法在工业工程中有着重要而广泛的应用。针对航天发射场光学载荷测试的特点, 在继承前期发射任务的基础和确保可靠性安全性的前提下,分析了测试流程之间的关系,使用ECRS进行流程优化工作,缩短了测试时间,增强了 测试发射能力。最后对发射场测试流程优化工作做了展望。     

Discovery of New Green Phosphors and Minimization of Experimental Inconsistency Using a Multi‐Objective Genetic Algorithm‐Assisted Combinatorial Method

A multi‐objective genetic algorithm‐assisted combinatorial materials search (MOGACMS) strategy was employed to develop a new green phosphor for use in a cold cathode fluorescent lamp (CCFL) for a back light unit (BLU) in liquid crystal display (LCD) applications. MOGACMS is a method for the systematic control of experimental inconsistency, which is one of the most troublesome and difficult problems in high‐throughput combinatorial experiments. Experimental inconsistency is a very serious problem faced by all scientists in the field of combinatorial materials science. For this study, experimental inconsistency and material property were selected as dual objective functions that were simultaneously optimized. Specifically, in an attempt to search for promising phosphors with high reproducibility, luminance was maximized and experimental inconsistency was minimized using the MOGACMS strategy. A divalent manganese‐doped alkali alkaline germanium oxide system was screened using MOGACMS. As a result of MOGA reiteration, we identified a phosphor, Na₂MgGeO₄:Mn²⁺, with improved luminance and reliable reproducibility.