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Nowadays sensors are part of everyday life in a wide variety of fields: scientific
applications, medical instrumentation, industrial field, ...and, last but not least,
popular mass production and low-cost goods, like smartphones and other mobile
devices. Markets and business behind the field of sensors are quite impressive.
A common trend for consumer applications is miniaturization which requires, on
one side, a lot of research, development efforts, and resources but, on the other
hand, allows costs and final application size reduction. In this scenario scientific
community and industries are very active to drive innovation.
標簽：
Magnetometers
Lorentz
Force
MEMS
上傳時間：
2020-06-06
上傳用戶：shancjb
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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.
標簽：
MEMS-based
Circuits
Systems
and
上傳時間：
2020-06-06
上傳用戶：shancjb
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The large-scale deployment of the smart grid (SG) paradigm could play a strategic role in
supporting the evolution of conventional electrical grids toward active, flexible and self-
healing web energy networks composed of distributed and cooperative energy resources.
From a conceptual point of view, the SG is the convergence of information and
operational technologies applied to the electric grid, providing sustainable options to
customers and improved security. Advances in research on SGs could increase the
efficiency of modern electrical power systems by: (i) supporting the massive penetration
of small-scale distributed and dispersed generators; (ii) facilitating the integration of
pervasive synchronized metering systems; (iii) improving the interaction and cooperation
between the network components; and (iv) allowing the wider deployment of self-healing
and proactive control/protection paradigms.
標簽：
Computational
Intelligence
上傳時間：
2020-06-07
上傳用戶：shancjb
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This book describes a unifying framework to networked teleoperation systems
cutting across multiple research fields including networked control system for linear
and nonlinear forms, bilateral teleoperation, trilateral teleoperation, multilateral
teleoperation, cooperative teleoperation, and some teleoperation application
examples. Networked control has been deeply studied at the intersection of systems
& control and robotics for a long time, and many scholarly books on the topic have
been already published. Nevertheless, the approach remains active even in several
new research fields, such as bilateral teleoperation, single master and multiple
slaves, trilateral teleoperation, and multilateral teleoperation
標簽：
Teleoperation
Intelligent
Networked
Control
上傳時間：
2020-06-10
上傳用戶：shancjb
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The large-scale deployment of the smart grid (SG) paradigm could play a strategic role in
supporting the evolution of conventional electrical grids toward active, flexible and self-
healing web energy networks composed of distributed and cooperative energy resources.
From a conceptual point of view, the SG is the convergence of information and
operational technologies applied to the electric grid, providing sustainable options to
customers and improved security. Advances in research on SGs could increase the
efficiency of modern electrical power systems by: (i) supporting the massive penetration
of small-scale distributed and dispersed generators; (ii) facilitating the integration of
pervasive synchronized metering systems; (iii) improving the interaction and cooperation
between the network components; and (iv) allowing the wider deployment of self-healing
and proactive control/protection paradigms.
標簽：
Computational
Intelligence
上傳時間：
2020-06-10
上傳用戶：shancjb
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Design for manufacturability and statistical design encompass a number
of activities and areas of study spanning the integrated circuit design and
manufacturing worlds. In the early days of the planar integrated circuit, it was
typical for a handful of practitioners working on a particular design to have
a fairly complete understanding of the manufacturing process, the resulting
semiconductor active and passive devices, as well as the resulting circuit -
often composed of as few as tens of devices. With the success of semiconductor
scaling, predicted and - to a certain extent even driven - by Moore’s law, and
the vastly increased complexity of modern nano-meter scale processes and the
billion-device circuits they allow, there came a necessary separation between
the various disciplines.
標簽：
Manufacturability
Statistical
Design
for
and
上傳時間：
2020-06-10
上傳用戶：shancjb
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Samba設置AD域教程，linux架設文件服務器，并加入windows AD 域，通過Windows active Directory 管理共享資源
標簽：
Samba
教程
上傳時間：
2021-08-17
上傳用戶：softboy99
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配電網中,各種配電終端的電流、電壓、有功功率及無功功率等模擬量的采集是配電網自動化的重要環節。這些模擬量的采集也是各種儀器和家用電器的必要功能。因此,設計了基于嵌入式STM32F103單片機的交流電壓、交流電流及有功功率的采集系統,通過電壓互感器TV1005M和電流互感器TA1005M分別檢測交流電壓和交流電流值;屏幕或者手機APP和WiFi模塊互聯后,可以實時顯示交流電壓、交流電流、功率及電量值;通過設定閾值功率,可以實現對電流的監控和對電路的保護。In the distribution network,the collection of analog,such as current,voltage,active power,and reactive power at various distribution terminals is a very important part of distribution network automation. These analog acquisitions are also for various instruments and household appliances. Very important technology. Therefore,an AC voltage,AC current and active power acquisition system based on embedded STM32 F103 machine is designed,and AC voltage and AC current values are detected by voltage transformer TV1005 M and current Transformer TA1005 M respectively;After the screen or mobile phone APP and WiFi modules are interconnected,AC voltage,AC current,power,and power values can be displayed in real time;By setting the threshold power,the current can be monitored and the circuit can be protected.
標簽：
stm32f103
單片機
電流電壓采集
上傳時間：
2022-03-27
上傳用戶：shjgzh
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隨著科技發展及工業4.0 進程推進,機械臂應用范圍越來越廣,并演化出各種各樣的機械臂,如碼垛機械臂、焊接機械臂、裝配機械臂以及手術機械臂等。現利用solidworks 進行三維建模,設計制作一款基于stm32f103c8t6 單片機的主從式桌面級機械臂,該機械臂包括一個主動機械臂和一個從動機械臂,采用藍牙傳輸信號方式進行同步運動,并且詳細介紹了該機械臂材料選擇、結構設計、工作原理、組成部分和設計特點。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.
標簽：
stm32f103c8t6
單片機
上傳時間：
2022-03-27
上傳用戶：
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PFC基礎知識-PF的定義1功率因數（Power Factor）的定義是指輸入有功功率（p）和視在功率（S）的比值；線性電路功率因數可用Cos表示，為正弦電流與正弦電壓的相位差；但是由于整流電路中二極管的非線性，導致輸入電流為嚴重的非正弦波形，用cosp已不能表示整流電路的功率因數；常規直接整流電路的濾波電容使輸出電壓平滑，但卻使輸入電流變為尖脈沖，并產生高次諧波分量。輸入電流波形變，導致功率因數下降，污染電網，甚至造成電子設備損壞。引入功率因數校正是必要的利用功率因數校正技術可A/全跟蹤交流輸入電壓波形，流輸入電流波形完使輸入電流波形皇純正弦波，并且與輸入電壓波形相位，，此時整流器的貨載可等效為純電阻。根據常用功率因數校正方法可分為有源功率因數校正（APFC）技術與無源功率因數校正（PPFC）技術。它置于橋式整流器與濾波用電解電容器之間，實際上是一種DC-DC變換器。無源功率因數校正是利用電感和電容組成濾波器，對輸入電容進行移相和整形。有源功率因數校正（APFC：active Power Factor Correction），在負載即電力電子裝置本身的整流器和濾波電容之間增加一個功率變換電路，將整流器的輸入電流校正成為與電網電壓同相位的正弦波，消除了諧波和無功電流，因而將電網功率因數提高到近似為1.APFC電路常用拓撲：升壓式（Boost）降壓式（Buck）升/降壓式（Buck/Boost）反激式（Fly back）APFC電路形式：單極式 雙極式單相PFC 三相PFCBoost變換電路是有源功率因數校正器主回路拓撲的極好選擇。優點：輸入電流連續，因而產生低的傳導噪聲和最好的輸入電流波形；缺點：需要比輸入峰值電壓還要高的輸出電壓。
標簽：
pfc
上傳時間：
2022-05-28
上傳用戶：
