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浏览/检索结果: 共15条，第1-10条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 New thermal optimization scheme of power module in solid-state amplifier 期刊论文  OAI收割 NUCLEAR SCIENCE AND TECHNIQUES, 2019, 卷号: 30, 期号: 4, 页码: 7 作者:  Sun, Lie-Peng;  Yuan, Zhen-Yu;  Zhang, Cheng;  Xu, Xian-Bo;  Miao, Jun-Gang   |  收藏  |  浏览/下载：59/0  |  提交时间：2019/11/10 RF system  Solid-state amplifier  Power module  Heat transfer coefficient   A High-Power and Highly Efficient Semi-Conductor MOPA System for Lithium Atomic Physics 期刊论文  OAI收割 Applied Sciences-Basel, 2019, 卷号: 9, 期号: 3, 页码: 6 作者:  H.Wu;  H.B.Zhu;  J.W.Zhang;  H.Y.Peng;  L.Qin   |  收藏  |  浏览/下载：38/0  |  提交时间：2020/08/24 laser optical system,MOPA,semiconductor optical amplifier,beam,combination,Chemistry,Engineering,Materials Science,Physics   Mid-infrared carbon dioxide sensor with wireless and anti-condensation capability for use in greenhouses 期刊论文  OAI收割 Spectroscopy Letters, 2018, 卷号: 51, 期号: 6, 页码: 266-273 作者:  Wang, J. N.;  Xue, Q. S.;  Lin, G. Y.;  Ma, Q. J.   |  收藏  |  浏览/下载：15/0  |  提交时间：2019/09/17 carbon dioxide sensor  condensation  infrared absorption  orthogonal  locked amplifier  absorption-spectroscopy  control-system  co2  network  Spectroscopy   Modeling and Optimization of Class-E Amplifier at Subnominal Condition in a Wireless Power Transfer System for Biomedical Implants 期刊论文  OAI收割 IEEE Transactions on Biomedical Circuits and Systems, 2017, 卷号: 11, 期号: 1, 页码: 35-43 作者:  Liu H(刘浩);  Shao Q(邵琪);  Fang XL(方学林) 收藏  |  浏览/下载：36/0  |  提交时间：2016/12/29 Biomedical implants  class-E amplifier  efficiency improvement  subnominal condition  wireless power transfer system  zero-voltage-switching (ZVS)   Yb-doped large-mode-area aluminosilicate laser fibre fabricated by chelate precursor doping technique 期刊论文  OAI收割 electronics letters, 2016, 卷号: 52, 期号: 23, 页码: 1942-u42 作者:  Peng, Kun;  Wang, Zhen;  Zhan, Huan;  Ni, Li;  Gao, Cong 收藏  |  浏览/下载：118/0  |  提交时间：2016/11/22 ytterbium  aluminium compounds  doping  optical fibre fabrication  optical fibre testing  electron probe analysis  secondary ion mass spectroscopy  laser beams  optical fibre amplifiers  AlSiO:Yb  power 1 kW  efficiency 81  0 percent  slope efficiency  laser output  two-stage master oscillator power amplifier system  time-of-flight secondary ion mass spectrometry  electron probe microanalysis  fibre testing  numerical aperture  homogeneous large-core preform  gas flow control system  high-purity materials  chelate precursor doping technique  large mode area aluminosilicate laser fibre   A brushless DC motor controller with current-loop control (EI CONFERENCE) 会议论文  OAI收割 2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China Gao S. 收藏  |  浏览/下载：31/0  |  提交时间：2013/03/25 This paper presents a brushless DC motor controller with current loop control. The controller applies a complementary PWM modulation scheme to the power MOSFET. The current processor employed by the controller could detect the current flow through the motor windings accurately and convert the current to a voltage input to the error amplifier. The controller has 100% duty cycle high side conduction capability and real four quadrant torque control capability. It is able to implement a tight torque control for a DC brushless motor to satisfy the need of some servo system which calls for high bandwidth and raid dynamic response. 2011 IEEE.   Optimization of Pulse Temporal Contrast in Optical Parametric Chirped Pulse Amplification 期刊论文  OAI收割 chin. phys. lett., 2009, 卷号: 26, 期号: 2, 页码: 24211 Wang Yan-Hai; Pan Xue; Li Xue-Chun; 林尊琪 收藏  |  浏览/下载：1620/257  |  提交时间：2009/09/18 PETAWATT LASER  REGENERATIVE AMPLIFIER  POWER LASER  PUMP-NOISE  EMISSION  SYSTEM   Application research of intelligent algorithm in electric-driven flight simulation turntable (EI CONFERENCE) 会议论文  OAI收割 ISECS International Colloquium on Computing, Communication, Control, and Management, CCCM 2008, August 3, 2008 - August 4, 2008, Guangzhou, China Xie M.-J.; Wang Z.-Q.; Wang L.-M. 收藏  |  浏览/下载：40/0  |  提交时间：2013/03/25 Application Research of Intelligent Algorithm in Electric-driven Flight Simulation Turntable is discussed in this paper. Fuzzy control is used to solve the problem of fast tracking and overshoot since its essence belongs to PD control In order to improve the performance of system in low speed  a method named variance-gain adaptive algorithm is introduced in this paper. It defines the amplifier gain as a function whose independent variable is speed  so the amplifier gain can automatically be adjusted with the change of speed. When the turntable runs at low speed  it has a big amplifier gain  a good rigidity and high tracking accuracy. When the turntable runs at high speed  the method can control the amplifier gain and ensure the system dynamic performance. Design and implementation of these algorithms is introduced in detail. Experiment results show that the Flight Simulation Turntable has achieved the required performance through using fuzzy control algorithm and variance-gain adaptive algorithm. 2008 IEEE.   用于高重复频率热容主振荡功率放大器激光系统的波前检测技术 期刊论文  OAI收割 中国激光, 2008, 卷号: 35, 期号: 7, 页码: 1055, 1058 邓泽微; 马秀华; 施翔春 收藏  |  浏览/下载：1813/212  |  提交时间：2009/09/18 激光技术  波前检测  环路径向剪切干涉  波前重建  高重复频率热容主振荡功率放大器激光系统  Cyclic radial wavefront shearing interference  High repetition rate heat capacity master oscillator power amplifier system  Laser technique  Wavefront reconstruction  Wavefront sensing   Research on method of measuring the time of remote explosion point (EI CONFERENCE) 会议论文  OAI收割 27th International Congress on High-Speed Photography and Photonics, September 17, 2006 - September 22, 2006, Xi'an, China 作者:  Zhou J.;  Fu Y. 收藏  |  浏览/下载：22/0  |  提交时间：2013/03/25 The time when the bomb explodes is one of the most important indexes to appraise the test. According to the principles concerned with explosion radiation  the principle of measuring the time of remote explosion point and composition of measuring system is introduced. Use CCD to record the explosion radiation  DSP to process and record the high-capacity  high-speed video signals  and convert the exploding process examined by floating amplifier into digital signals. Besides  the article analyzes the composing and structural design of the log's optical system  principle of electric control and floating amplifier  dynamic range of the system  power analysis of the incident light  and how to improve the accuracy of measurement in great detail.