Micro-Electro-mechanICAl Systems (MEMS) are miniature systems composed ofintegratedelectricalandmechanICAlpartstosenseand/orcontrolthingsonaμmscale. The concept of MEMS is attributed to Richard Feynman’s famous talk on December 29th, 1959 [2,3]. Dr. Feynman foresaw many aspects of future MEMS development with his insight in microphysics. In particular, material properties in the μm scale are differentfrombulkpropertiesandthescalingdownofintegratedcircuits(IC)fabrication technology has been a major driving force of MEMS development.
標(biāo)簽： Performance High MEMS RF
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
Recent advancements in nanotechnology (NT) materials and growth of micro/ nanotechnology have opened the door for potential applications of microelectro- mechanICAl systems (MEMS)- and NT-based sensors and devices. Such sensors and devices are best suited for communications, medical diagnosis, commercial, military, aerospace, and satellite applications. This book comes at a time when the future and well-being of Western industrial nations in the twenty-first century’s global eco- nomy increasingly depend on the quality and depth of the technological innovations they can commercialize at a rapid pace.
標(biāo)簽： MEMS
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
Over many years, RF-MEMS have been a hot topic in research at the technology and device level. In particular, various kinds of mechanICAl Si-MEMS resonators and piezoelectric BAW (bulk acoustic wave) resonators have been developed. The BAW technology has made its way to commercial products for passive RF filters, in particular for duplexers in RF transceiver front ends for cellular communica- tions. Beyond their use in filters, micromachined resonators can also be used in conjunction with active devices in innovative circuits and architectures.
標(biāo)簽： MEMS-based Circuits Systems and
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
Microengineering and MicroelectromechanICAl systems (MEMS) have very few watertight definitions regarding their subjects and technologies. Microengineering can be described as the techniques, technologies, and practices involved in the realization of structures and devices with dimensions on the order of micrometers. MEMS often refer to mechanICAl devices with dimensions on the order of micrometers fabricated using techniques originating in the integrated circuit (IC) industry, with emphasis on silicon-based structures and integrated microelectronic circuitry. However, the term is now used to refer to a much wider range of microengineered devices and technologies.
標(biāo)簽： Microengineering Interfacing MEMS and
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
This book introduces students to the theory and practice of control systems engineer- ing. The text emphasizes the practical application of the subject to the analysis and design of feedback systems. The study of control systems engineering is essential for students pursuing degrees in electrical, mechanICAl, aerospace, biomedical, or chemical engineering. Control systems are found in a broad range of applications within these disciplines, from aircraft and spacecraft to robots and process control systems.
標(biāo)簽： Control Systems Engineering
上傳時(shí)間： 2020-06-10
上傳用戶：shancjb
This book will discuss the topic of Control Systems, which is an interdisciplinary engineering topic. Methods considered here will consist of both "Classical" control methods, and "Modern" control methods. Also, discretely sampled systems (digital/computer systems) will be considered in parallel with the more common analog methods. This book will not focus on any single engineering discipline (electrical, mechanICAl, chemical, etc.), although readers should have a solid foundation in the fundamentals of at least one discipline.
標(biāo)簽： wiki-Control_Systems
上傳時(shí)間： 2020-06-10
上傳用戶：shancjb
A coupled thermo-hydro-mechanICAl model for evaluating air leakage from an unlined compressed air energy storage cavern
標(biāo)簽： thermo-hydro-mechanICAl compressed evaluating air coupled leakage storage unlined cavern energy
上傳時(shí)間： 2021-08-13
上傳用戶：hx09130032
THIS PUBLICATION IS COPYRIGHT PROTECTEDCopyright ? 2014 IEC, Geneva, SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any formor by any means, electronic or mechanICAl, including photocopying and microfilm, without permission in writing fromeither IEC or IEC's member National Committee in the country of the requester. If you have any questions about IECcopyright or have an enquiry about obtaining additional rights to this publication, please contact the address below oryour local IEC member National Committee for further information.Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduiteni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopieet les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez desquestions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisezles coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
標(biāo)簽： iec標(biāo)準(zhǔn)
上傳時(shí)間： 2021-10-21
上傳用戶：kent
研究一種智能掃地機(jī)器人。從硬件系統(tǒng)控制模塊設(shè)計(jì)到主要技術(shù)調(diào)試進(jìn)行了較詳細(xì)的闡述。以STM32單片機(jī)為控制核心與電機(jī)驅(qū)動(dòng)、紅外線路徑識(shí)別模塊等相互協(xié)調(diào)應(yīng)用。進(jìn)行電路搭建和程序編寫(xiě)。實(shí)現(xiàn)了智能掃地機(jī)器人紅外線避障和自動(dòng)掃地功能,其清掃面積能達(dá)到約70%,清掃率約60%,很大程度受到自身機(jī)械機(jī)構(gòu)的限制,后期將對(duì)小車的機(jī)械結(jié)構(gòu)進(jìn)行完善。This paper studies an intelligent sweeping robot.From the hardware system control module design to the main technical debugging are described in detail.STM32 MCU is used as the control core to coordinate with motor drive and infrared path recognition module.Conduct circuit building and programming.The functions of infrared obstacle avoidance and automatic sweeping of intelligent sweeping robot are realized.Its cleaning area can reach about 70%and the cleaning rate is about 60%.Because it is limited by its own mechanICAl mechanism to a great extent,the mechanICAl structure of the car will be improved in the later stage.
標(biāo)簽： 掃地機(jī)器人
上傳時(shí)間： 2022-03-26
上傳用戶：
隨著科技發(fā)展及工業(yè)4.0 進(jìn)程推進(jìn),機(jī)械臂應(yīng)用范圍越來(lái)越廣,并演化出各種各樣的機(jī)械臂,如碼垛機(jī)械臂、焊接機(jī)械臂、裝配機(jī)械臂以及手術(shù)機(jī)械臂等。現(xiàn)利用solidworks 進(jìn)行三維建模,設(shè)計(jì)制作一款基于stm32f103c8t6 單片機(jī)的主從式桌面級(jí)機(jī)械臂,該機(jī)械臂包括一個(gè)主動(dòng)機(jī)械臂和一個(gè)從動(dòng)機(jī)械臂,采用藍(lán)牙傳輸信號(hào)方式進(jìn)行同步運(yùn)動(dòng),并且詳細(xì)介紹了該機(jī)械臂材料選擇、結(jié)構(gòu)設(shè)計(jì)、工作原理、組成部分和設(shè)計(jì)特點(diǎn)。With the development of science and technology and the advancement of Industry 4.0, the application range of the mechanICAl arm has become wider and wider, and various types of mechanICAl arms, such as palletizing robot arms, welding robot arms, assembly robot arms, and surgical robot arms, have been developed. Now using solidworks for 3D modeling, design and manufacture a master-slave desktop-level robot arm based on stm32f103c8t6 single-chip microcomputer. The robot arm includes an active robot arm and a slave robot arm, which uses Bluetooth to transmit signals for synchronous motion. The material selection, structural design, working principle, components and design features of the manipulator are introduced.
標(biāo)簽： stm32f103c8t6 單片機(jī)
上傳時(shí)間： 2022-03-27
上傳用戶：
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