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维普期刊数据库

design of machinery - SOLUTIONS MANUAL 5th Ed.

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Wavelength-selective switch based on a high fill-factor micromirror array

丛书名： McGraw-Hill Series in Mechanical Engineering

2012年

作者： Robert L. Norton

来源：畅想之星图书光盘版（南... 评论

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畅想之星图书光盘版（南通市图书馆镜像）

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Chinese Optics Letters 2011年第9期9卷 5-7页

作者：李四华万助军徐靜钟少龙吴亚明 State Key Laboratory of Transducer Technology Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Graduate University of Chinese Academy of Sciences College of Optoelectronic Science and Engineering Huazhong University of Science and Technology

A novel design and fabrication approach for a high fill-factor micro-electro-mechanical system （MEMS） micromirror array-based wavelength-selective switch （WSS） is presented. The WSS is composed of a polarization-independent transmission grating and a high fill-factor micromirror array. The WSS is successfully demonstrated based on the fabricated high fill-factor micromirror array. Test results show that the polarization-dependent loss （PDL） is less than 0.3 dB and that the insertion loss （IL） of the wavelength channel is about -6 dB. The switching function between the two output ports of WSS is measured. The forward switching time is recorded to be about 0.5 ms, whereas the backward switching time is about 7 ms.

关键词： machine design Microelectromechanical devices Switching functions

维普期刊数据库

Research for the design of Brushless Doubly Salient machine

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Research for the Design of Brushless Doubly Salient Machine

Development of Hot-embossing machines for Fabrication of Polymer Microstructures

第三十届中国控制会议

作者： YE Xiaoting,ZHANG Qingchun,ZHANG Tao Faculty of Electronic and Electrical Engineering,Huaiyin Institute of Technology,Huaian 223001 P.R.China

＜正＞In this paper,the research for the design of a new three-phase 6/4 pole brushless doubly fed doubly salient permanent magnet（BDFDSPM） machine is presented.BDFDSPM machine has different scheme from normal doubly salient permanent magnet（DSPM） motor.BDFDSPM machine consists of two types of stator windings:the polyphase armature winding and the dc field winding,which the dc current flowing through the field winding can be independently controlled.The finite element analysis is applied to analyze the static characteristics of the BDFDSPM machine.A prototype BDFDSPM machine is designed for verification.

关键词： Doubly salient machine machine design Brushless machine

来源： cnki会议评论

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cnki会议

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Development of Hot-embossing Machines for Fabrication of Pol...

2007国际机械工程与力学会议

作者： Xiaodong WANG Dongsheng SHE He WEI Chong LIU Key Laboratory for Dalian University of Technology Precision & Non-traditional Machining of Ministry of Education

The principle of hot-embossing method for fabrication of polymer microstructures including process parameters and process control are briefly introduced. Hot-embossing machine RYJ-I was developed for small to medium batch production of micro components with polymer microstructures, and has already been successfully applied in fabrication of micro channels and thermal bonding of plastic (PMMA) substrate and cover of microfluidic chips at Research Center for Micro System Technology, Dalian University of Technology in China. Hot- embossing machine RYJ-II is newly developed, which has larger control range of temperature and pressing force, and is applicable to most polymer materials in fabrication of microstructures. RYJ-I and RYJ-II are described, their design features and comparison are also given. The developed equipment can be used in volume production and can also be used as independent equipment for research at laboratory.

关键词： Equipment for microfabrication Hot-embossing machine design Polymer microfluidic chip Polymer microstructure

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cnki会议

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日本にぉける材料试验机の発达

机械技术史

机械技术史 1998年 537-542页

作者：小林光男田中道彦田中稔丹羽直毅北郷薰信州大学工学部岩手大学教育学部工学院大学工学部

When looking back upon the history of technologies,we see only successful results brilliantly described.Any development of technology is backed up by those engineers working behind and their philosophy.The material testing machines which inspect the properties of materials deliver the useful information to machine designers and make a great contribution to the development of industrial technologies.The history of material testing machine involves a basic policy of supporting the technologies by examining the mechanical properties of the materials and parts of machines.This is also a comprehensive technology which is subtly supported by the technologies to generate force and to measure material deformation.The history of material testing machine described in this paper will relate to the tension,torsion,bending,strength and hardness,referring to the dynamic/ meteorological backgrounds.

关键词： History of technology Industrial technology machine design Function of machine Testing machine of materials.

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试论机械设计系统的发展

机械技术史

机械技术史 1998年 103-107页

作者：张志伟谢文芝太原理工大学上海交通大学

设计过程是一个非常复杂的创造性过程,涉及到设计对象、设计理论与方法、设计手段和设计环境等方面,因此,本文把设计过程系统(理论与方法)、产品物质系统(设计对象)和设计工具系统(手段)作为设计系统的子系统,设计环境作为外在控制和协... 详细信息

设计过程是一个非常复杂的创造性过程,涉及到设计对象、设计理论与方法、设计手段和设计环境等方面,因此,本文把设计过程系统(理论与方法)、产品物质系统(设计对象)和设计工具系统(手段)作为设计系统的子系统,设计环境作为外在控制和协调因素,对机械设计系统及其发展进行研究。首先回顾机械设计系统发展的历史,分析其现状,然后提出其系统学描述,对各分系统及其发展进行探讨。

关键词： machine design system science developing trend