中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [5]
高能物理研究所 [3]
采集方式
OAI收割 [8]
内容类型
会议论文 [5]
期刊论文 [3]
发表日期
2011 [1]
2010 [2]
2008 [2]
1986 [2]
1985 [1]
学科主题
筛选
浏览/检索结果:
共8条,第1-8条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
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
Study on the servo system of large telescope based on the internal model pid control strategy (EI CONFERENCE)
会议论文
OAI收割
IEEE 2011 10th International Conference on Electronic Measurement and Instruments, ICEMI 2011, August 16, 2011 - August 18, 2011, Chengdu, China
Li H.
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2013/03/25
This paper developed the internal model PID control for large telescope control system considerations in more parameters adjustment in servo control loop at present. The large electro-optic telescope system belongs to a big inertia system. This simplifies the debug process
the feasibility and robustability are also verified by the analyses and simulation results that satisfy the high precision demand. The practicability of this algorithm is verified in an actual project that only two parameters need adjusted. The application shows that this system runs stably with high accuracy. The technology and methods adopted in the system are practical and worthy of using abroad. 2011 IEEE.
Autocollimation form dual-frequency laser diffraction grating interferometer design and analysis (EI CONFERENCE)
会议论文
OAI收割
2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China
Wang C.-G.
收藏
  |  
浏览/下载:34/0
  |  
提交时间:2013/03/25
Propose a new measurement system of autocollimation form laser grating heterodyne interferometer. Take grating diffraction and polarization optics as theoretical foundation
second
furthermore
combined with electronics knowledge to analyze the system. First
make use of autocollimation diffraction of grating
measurement information obtained by dual-frequency laser belongs to ac signal
the interferometer measurement system take grating pitch as measuring datum
the structure is simple
possess great gain and high signal-noise ratio
therefore
stable
completely overcome the disadvantages of DC level drift caused by light intensity variation of single-frequency laser
system can achieve nanometer resolution. 2010 IEEE.
reduce the impact of environmental factors
easy to install and debug
measurement error is small
Qualitative determination of the components of textile products using near infrared spectroscopy (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photonics and Optoelectronics, SOPO 2010, June 19, 2010 - June 21, 2010, Chengdu, China
作者:
Chen X.
;
Chen X.
;
Chen X.
;
Wang D.
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2013/03/25
In the paper
A total of 40 pure or two-mixed textile weaves were prepared and classification of these samples was introduced using near infrared spectroscopy (NIRS)
all textile samples are selected among four classes
which are Cotton-Terylene
Cotton-Polyurethane
Cotton and Terylene
according to theirs components. Near infrared diffuse reflectance spectra of the samples were collected
Mahalanobis distance was used to discriminate the samples coupled with principle components analysis (PCA)
the results showed that near infrared spectroscopy could determine which class one textile weave belongs to easily comparing with traditional methods. In addition
the expectation of the further research on qualitative determination of textile products by NIR technology was discussed in the end of this paper. 2010 IEEE.
Implementation and stability analysis of the fuzzy controller based on electric-driven 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 L.-M.
;
Wang Z.-Q.
收藏
  |  
浏览/下载:22/0
  |  
提交时间:2013/03/25
Fuzzy controller was used to resolve the problem of fast tracking and overshoot in electric-driven simulation turntable
for its essence belongs to PD control In this system
the control rules of fuzzy controller were established according to the step dynamic response process
for the speed loop of this system was predigested to be second-orders system. The describing function method was adopted to analyze the stability of the fuzzy control system. It gave the information of stability of system intuitively. The fuzzy controller had been applied in this system successfully. The simulation turntable had no overshooting nearly when its step input signal was close to 90. Experimental results show the implementation method of fuzzy controller is not only simple but also effectual in engineering practice. It also provides an approach of design of fuzzy controller for motion control system. 2008 IEEE.
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.
ELEMENTAL ABUNDANCES OF NINGQIANG CHONDRITE
期刊论文
OAI收割
Science Bulletin, 1986, 期号: 2, 页码: 111-114
作者:
Chai ZF(柴之芳)
;
Mao XY(毛雪瑛)
;
Ma SL(马淑兰)
;
Wang SC(王思潮)
收藏
  |  
浏览/下载:20/0
  |  
提交时间:2015/12/07
favorable
chance
belongs
territory
irradiation
preliminary
agate
grateful
instrumental
implies
COSMOGENIC RADIONUCLIDES OF NINGQIANG CHONDRITE FROM NONDESTRUCTIVE GAMMA-RAY SPECTROMETRY
期刊论文
OAI收割
Science Bulletin, 1986, 期号: 2, 页码: 115-117
作者:
Chai ZF(柴之芳)
;
Su Q(苏琼)
;
Mao XY(毛雪瑛)
;
Ma SL(马淑兰)
;
Wang SC(王思潮)
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2015/12/07
belongs
preliminary
GAMMA
widespread
brought
neutron
isotopes
Jilin
atter
irradiation
REE CHARACTERISTICS OF HONGTOUSHAN Cu-Zn MASSIVE SULPHIDE DEPOSIT IN QINGYUAN GRANITE-GREENSTONE TERRAIN; NE CHINA
期刊论文
OAI收割
Science Bulletin, 1985, 期号: 9, 页码: 1231-1235
作者:
Zhai MG(翟明国)
;
Yang RY(杨瑞英)
;
Huang ZX(黄宗祥)
;
Zhou JW(周继微)
收藏
  |  
浏览/下载:21/0
  |  
提交时间:2015/12/25
volcanic
belongs
massive
quartz
alkaline
magma
granite
terrain
favorable
mineralization