检索结果-内蒙古大学图书馆

15th IEEE International Conference on Mechatronics and Automation, ICMA 2018

作者： Wang, Zhigang Wang, Lingling Yun, Zerong Wang, Jinghui Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control School of Mechanical Engineering China National Demonstration Center for Experimental Mechanical and Electrical Engineering Education China Tianjin University of Technology Tianjin China National Institute of Metrology China Beijing China

ISBN: (纸本)9781538660720

Blackbody radiation source is a key equipment in the traceability process of temperature measurement. In infrared temperature measurement, stable and consistent temperature control of the blackbody radiation sources is required. And in the process of calibration, it is a key element that a blackbody radiation source can produce a fixed temperature. Effective control of its temperature is, therefore, crucial. Due to the change of parameters and the uncertainty of loads, the performance requirements for conventional Proportional, Integral and Differential (PID) controller are high. But the control effect of the conventional PID controller on the temperature control system is not perfect. So the Fuzzy-PID control algorithm is simulated with software for the temperature control system of the blackbody radiation source in this paper. Compared with the conventional PID control algorithm, the Fuzzy-PID control has advantages of quicker response, smaller overshoot and more stable performance. It is of a certain reference value to improve the temperature control performances in the actual industrial production applications. © 2018 IEEE.

关键词： Temperature control

来源：评论

学校读者我要写书评

暂无评论

High-Speed Noise-Based Random Bit Generator by Removing 1/f Noise with Differential Comparison

引用

Journal of Beijing institute of technology 2018年第3期27卷 363-370页

作者： Jianzhong Zhang Xiaoyu Yu Mingjiang Zhang Yi Liu Zhuping Li Key Laboratory of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi ProvinceInstitute of Optoelectronic EngineeringCollege of Physics & OptoelectronicsTaiyuan University of Technology

A design scheme of high-speed physical random bit generator is proposed by utilizing a wideband white noise as an entropy *** difference operation between the wideband noise signal and its delayed signal is done to produce a series of binary code by a differential *** D flipflop,which is triggered by a clock,samples the output of the comparator.A random bit sequence at rates of up to 720 Mbit/s is obtained after the exclusive-OR *** differential comparison on noise signals can effectively eliminate 1/f characteristics of the amplified noise,and correct the probability density distribution deviation of noise signal *** quality of the resulting random sequence is verified using common tests of statistical randomness.

关键词： differential comparison noise source 1/f noise random bit generator

来源：评论

学校读者我要写书评

暂无评论

Omnidirectional Conformal Cloak Without Geometrical Dispersion

引用

Physical Review Applied 2019年第6期12卷 064009-064009页

作者： Yichao Liu Fei Sun Sailing He Key Lab of Advanced Transducers and Intelligent Control System Ministry of Education and Shanxi Province College of Physics and Optoelectronics Taiyuan University of Technology Taiyuan 030024 China State Key Laboratory of Modern Optical Instrumentations Centre for Optical and Electromagnetic Research JORCEP East Building #5 Zijingang Campus Zhejiang University Hangzhou 310058 China Department of Electromagnetic Engineering School of Electrical Engineering Royal Institute of Technology (KTH) S-100 44 Stockholm Sweden

The phase delay problem of invisibility cloaks designed by optical conformal mapping is referred to the optical path difference between the waves in upper and lower Riemann sheets. As the frequency changes, the phase delay varies accordingly (here, we call it geometrical dispersion), which restricts the cloaks to working only at some discrete frequencies. Here, we solve the phase-delay problem by placing an optically null medium in the lower Riemann sheet. The conformal cloaks designed by using our method have many advantages, such as a continuous working band (no geometrical dispersion), omnidirectionality, robustness under frequency shifts, and no need for any complex materials that are both anisotropic and inhomogeneous. We also design metallic microchannels to realize our cloaks.

关键词： Optical cloaking Devices Optical materials & elements Optical conformal mapping

来源：评论

学校读者我要写书评

暂无评论

Targeted Cancer Therapy: Sequential Magneto-Actuated and Optics-Triggered Biomicrorobots for Targeted Cancer Therapy (Adv. Funct. Mater. 11/2021)

引用

advanced Functional Materials 2021年第11期31卷

作者： Jiehua Xing Ting Yin Shuiming Li Tiantian Xu Aiqing Ma Ze Chen Yingmei Luo Zhengyu Lai Yingnian Lv Hong Pan Ruijing Liang Xinyu Wu Mingbin Zheng Lintao Cai Guangdong Key Laboratory of Nanomedicine CAS-HK Joint Lab for Biomaterials Shenzhen Institutes of Advanced Technology (SIAT) Chinese Academy of Sciences Shenzhen 518055 P. R. China Guangdong Key Laboratory for Research and Development of Natural Drugs Key Laboratory for Nanomedicine Guangdong Medical University Dongguan 523808 P. R. China Shenzhen Key Laboratory Microbiology and Gene Engineering Shenzhen University Shenzhen 518060 P. R. China Guangdong Provincial Key Laboratory of Robotics and Intelligent System Shenzhen Institutes of Advanced Technology Chinese Academy of Sciences Shenzhen 518055 P. R. China Zhuhai Institute of Advanced Technology Chinese Academy of Sciences Zhuhai 519000 P. R. China The Third People's Hospital of Shenzhen Shenzhen 518114 P. R. China

来源：评论

学校读者我要写书评

暂无评论

The temperature control of blackbody radiation source based on ADRC 15

The temperature control of blackbody radiation source based ...

引用

15th IEEE International Conference on Mechatronics and Automation, ICMA 2018

作者： Wang, Zhigang Yun, Zerong Wang, Lingling Wang, Jinghui Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control School of Mechanical Engineering Tianjin China National Demonstration Center for Experimental Mechanical and Electrical Engineering Education Tianjin China Tianjin University of Technology Tianjin China Natinal Institute of Metrology China Beijing China

ISBN: (纸本)9781538660720

Blackbody radiation source is used as a standard device for infrared thermometer, it plays increasingly important roles in the field of calibration. Through experiment discoveries that it is a typical nonlinear system and has a large transport delay when the blackbody is rise temperature or cooling in order to reach set temperature points. Based on the temperature control of blackbody is a kind of typical multi-variable, strong coupling and time-varying nonlinear control system. The paper proposes applying the theory of active disturbance rejection controller (ADRC) to suppress various disturbances and improve the dynamic performance of blackbody radiation source. First of all, describing the working principle of blackbody radiation source and building its mathematical model. Secondly, introducing the control method of ADRC, which is applied to the temperature control system of blackbody radiation source. Finally, through MATLAB/SIMULINK platform to simulate and compare the temperature control performances of blackbody among ADRC, PID and Smith predictor(SP) control strategies. The simulation results show that proposed ADRC algorithm improves the abilities of anti-interference of system and it is without overshoot. In addition, the results also indicated that the control method of ADRC shortens plant stable time and has a strong prospect for practical applications. © 2018 IEEE.

关键词： Temperature control

来源：评论

学校读者我要写书评

暂无评论

Low drag design of radome for unmanned aerial vehicle

Low drag design of radome for unmanned aerial vehicle

引用

2017 IEEE International Conference on Unmanned systems (ICUS)

作者： Wenbiao Gan Jinwu Xiang Tielin Ma Qinling Zhang Dawei Bie Research Institute of Unmanned System Beihang UniversityKey Laboratory of Advanced Technology of Intelligent Unmanned-Flight-System of Ministry of Industry and Information Technology Research Institute of Unmanned System Beihang University

ISBN: (纸本)9781538631089;9781538631072

Radar is an important payload of reconnaissance unmanned aerial vehicle(UAV) *** radome of Heron class UAV system is low-drag *** on the geometric constraint of radar,airfoils and cubic curves are used to fast parametric modeling of two low-drag *** numerical simulation is carried out full-aircraft with two different *** lift-drag characteristics and flow features of two radomes are comparatively *** results show that the radome significantly changes flow characteristics of the *** droplet-shaped radome has a lower drag than *** cruise lift-drag ratio is increased by 2.3% compared with droplet-shaped radome configuration.

关键词： Unmanned aerial vehicle Radome Low drag aerodynamic

来源：评论

学校读者我要写书评

暂无评论

A compact terahertz CW HCN dual laser and its stability control 43

A compact terahertz CW HCN dual laser and its stability cont...

引用

43rd International Conference on Infrared Millimeter and Terahertz Waves, IRMMW-THz 2018

作者： Xie, J.X. Liu, H.Q. Shen, J.J. Wei, X.C. Jie, Y.X. School of Mechanical Engineering Tianjin Key Laboratory of the Design and Intelligent Control of the Advanced Mechanical System Tianjin University of Technology Tianjin300384 China National Demonstration Center for Experimental Mechanical and Electrical Engineering Education Tianjin University of Technology China Institute of Plasma Physics Chinese Academy of Sciences Hefei230031 China

ISBN: (纸本)9781538638095

A compact terahertz continuous wave (CW) discharge-pumped Hydrogen cyanide (HCN) dual laser has been developed for better signal to noise ratio and higher time resolution, with active power and intermediate frequency (IF) control. The output power of about 110 mW on the 0.89 THz line has been obtained with 1 m long and 50 mm inner diameter dual discharge-pumped wave-guides laser. An output-power and IF feedback control system is applied to the HCN dual laser for output power and IF stability. This feedback system consists of two stepping motors, a piezoelectric ceramics (PZT), a PLC, a supervisory computer and the corresponding control program. The whole feedback control system can successful in stabilizing the power of the laser around 110 mW and the IF at around 1MHz in several hours. © 2018 IEEE.

关键词： Signal to noise ratio

来源：评论

学校读者我要写书评

暂无评论

Hydrogel‐Based Millirobots: Reconfiguration, Camouflage, and Color‐Shifting for Bioinspired Adaptive Hydrogel‐Based Millirobots (Adv. Funct. Mater. 10/2020)

引用

advanced Functional Materials 2020年第10期30卷

作者： Xuemin Du Huanqing Cui Tiantian Xu Chenyang Huang Yunlong Wang Qilong Zhao Yangsheng Xu Xinyu Wu Institute of Biomedical and Health Engineering Shenzhen Institutes of Advanced Technology (SIAT) Chinese Academy of Sciences (CAS) Shenzhen 518035 China Guangdong Provincial Key Laboratory of Robotics and Intelligent System Shenzhen Institutes of Advanced Technology (SIAT) Chinese Academy of Sciences (CAS) Shenzhen 518035 China Robotics and Artificial Intelligence Laboratory The Chinese University of Hong Kong Shenzhen Shenzhen Institute of Artificial Intelligence and Robotics for Society Shenzhen 518172 China

来源：评论

学校读者我要写书评

暂无评论

Optimization of the Circuit Parameter in Class-E Power Amplifier in the Two-coil Wireless Power Transfer system

引用

IOP Conference Series: Materials Science and Engineering 2020年第1期740卷

作者： Zhuang Sun Qing Liu Kun Li Bin Hu Haibo Zhao Yankai Shi Shijie Zhang Yang Liu Tianjin Key Laboratory of Film Electronic and Communication Device Tianjin University of Technology Tianjin China Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control Tianjin University of Technology Tianjin China National Demonstration Center for Experimental Mechanical and Electrical Engineering Education (Tianjin University of Technology) Tianjin China Tianjin Institute of Power Sources Tianjin China

In this paper, the circuit parameters of the Class-E power amplifier are investigated and optimized to achieve the maximum of output power and efficiency in a two-coil Wireless Power Transfer (WPT) system. The circuit is simulated with software named Saber. Working frequency, the value of capacitors and inductor, which has relationship with the output power and efficiency, are investigated during the simulation. With the simulation results, it is found that the frequency and the shunt capacitor need to be optimized for high performance of the wireless power transfer system.

关键词：

来源：评论

学校读者我要写书评

暂无评论

Temperature Control Based on Fuzzy-PID Algorithm for the Blackbody Radiation Source

Temperature Control Based on Fuzzy-PID Algorithm for the Bla...

引用

IEEE International Conference on Mechatronics and Automation

作者： Zhigang Wang Lingling Wang Zerong Yun Jinghui Wang Tianjin Key Laboratory for Advanced Mechatronic System Design and Intelligent Control Tianjin University of Technology Tianjin China National Institute of Metrology China Beijing China

关键词： Temperature control Temperature measurement PI control PD control Temperature sensors Cavity resonators

来源：评论

学校读者我要写书评

暂无评论

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案：

请选择收藏分类：

通借通还

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：