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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
长春光学精密机械与物... [6]
金属研究所 [1]
地理科学与资源研究所 [1]
沈阳自动化研究所 [1]
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OAI收割 [9]
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会议论文 [4]
期刊论文 [4]
SCI/SSCI论文 [1]
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2019 [1]
2018 [1]
2016 [1]
2013 [1]
2012 [1]
2011 [1]
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Design of fast steering mirror with two double-axis flexure hinges
期刊论文
OAI收割
Yi Qi Yi Biao Xue Bao/Chinese Journal of Scientific Instrument, 2019, 卷号: 40, 期号: 2, 页码: 174-181
作者:
X.Xu
;
G.Zhang
;
G.Li
;
X.Liu
  |  
收藏
  |  
浏览/下载:45/0
  |  
提交时间:2020/08/24
Hinges,Automobile steering equipment,Bandwidth,Mirrors,Response time (computer systems),Steering,Step response
Speed control for K mirror of 2 m telescope based on adaptive active disturbance rejection-controller
期刊论文
OAI收割
Hongwai yu Jiguang Gongcheng/Infrared and Laser Engineering, 2018, 卷号: 47, 期号: 7
作者:
Xia, Peipei
;
Wang, Zhiqian
;
Li, Hongwen
;
Deng, Yongting
;
Wang, Xianjun
  |  
收藏
  |  
浏览/下载:12/0
  |  
提交时间:2019/09/17
Adaptive control systems
Controllers
Disturbance rejection
Mirrors
Regression analysis
Scattering parameters
Servomechanisms
Speed
Speed control
Speed regulators
Step response
Telescopes
Simple PID Parameter Tuning Method Based on Outputs of the Closed Loop System
期刊论文
OAI收割
CHINESE JOURNAL OF MECHANICAL ENGINEERING, 2016, 卷号: 29, 期号: 3, 页码: 465-474
作者:
Han JD(韩建达)
;
Zhu ZQ(朱志强)
;
Jiang ZY(江紫亚)
;
He YQ(何玉庆)
收藏
  |  
浏览/下载:28/0
  |  
提交时间:2016/06/06
PID control
characteristic frequency
step response
frequency property
Response spectrum 0.9-2.65 m of In0.82Ga0.18As detectors by two-step growth technique (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Material Sciences and Manufacturing Technology, ICMSMT 2012, October 5, 2012 - October 6, 2012, Dalian, China
作者:
Zhang T.
收藏
  |  
浏览/下载:30/0
  |  
提交时间:2013/03/25
InP/In0.82Ga0.18As/InP heterostructure used for infrared detector were grown on (100) S-doped InP substrates using two-step growth technique by low temperature metal-organic chemical vapor deposition. The growth was performed using TMIn
TMGa
AsH3
and PH3 as growth precursors in a horizontal reactor. The substrates on a graphite susceptor were heated by inductively coupling RF power
their temperatures were detected by a thermocouple
and the reactor pressure was kept at 10000 Pa. The growth structure of detector included In0.82Ga0.18As buffer with the thickness of 100 nm
In0.82Ga0.18As absorption layer with the thickness of 2.8 m
and the InP cap with the thickness of 0.8 m. The planar type of p-i-n detector was fabricated by Zn diffusion. The properties of In0.82Ga0.18As detector were studied
the curves of the I-V characteristics
the range of response spectrum
and the detectivity (D*) were obtained. (2013) Trans Tech Publications
Switzerland.
Rehabilitation of a debris-flow prone mountain stream in southwestern China - Strategies, effects and implications
SCI/SSCI论文
OAI收割
2012
作者:
Zhang K.
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2012/09/04
Steep headwater stream
Rehabilitation
Riparian vegetation
Streambed
structure
Stream ecology
land-use change
new-zealand
step-pools
sediment production
channel
response
mangatu-forest
gully erosion
puerto-rico
restoration
morphology
Design of thermostat system based on Proteus simulation software (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Han Z.
;
Song K.
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2013/03/25
In order to solve the problem of precise temperature control
the thermoelectric cooler (TEC) principle widely used is analyzed for the design of the whole control process and selection of control parameters
and then accurate simulation model of the TEC is established in Proteus simulation software. Moreover
combined with the traditional circuit simulation model
the temperature control loop is designed
and the response characteristics of the system are tested using an input signal similar to the unit-step function to achieve the precise temperature control. Simulation results show that the proposed control circuits can precisely convert error signal to output voltage sent to TEC model
and TEC model behaves approximately like a two-pole system. The first pole starts at 20mHz and a second pole at 1Hz. 2011 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:20/0
  |  
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.
Key techniques of laser direct writing of fine lines on the spherical surface (EI CONFERENCE)
会议论文
OAI收割
ICO20: Optical Design and Fabrication, August 21, 2005 - August 26, 2005, Changchun, China
Liang F.
;
Hu J.
收藏
  |  
浏览/下载:18/0
  |  
提交时间:2013/03/25
The main principles of laser direct writing (LDW) system for lines on the spherical surface (SS) are discussed. It is pointed out that line profile is determined by the exposure dose distribution
which lies on the light intensity distribution of focus plane and the scanning speed. To improve the quality of line profile on the SS
several key techniques as follows are introduced. Firstly
the unique system configuration
four axes mutually intersecting at the center of the SS
is adopted
which ensures the shape of the focus be maintained circular during the writing period. Secondly
an automatic focus system (AFS) with the function of automatic focus in a certain range is introduced. Thirdly
to guarantee the linear velocity to accord with the exposure character of the photoresist all the time
an efficient arithmetic that controls motors run at appropriate angular velocity in different latitude is developed. Finally
to achieve a stable and well-behaved system so as to compensate the velocity instability resulting from unavoidable errors of mechanical and electronics factor
a powerful programmable multi-axis controller (PMAC) is utilized as the kernel element of the servocontrol system
and the curves of step response and parabolic response achieved by feedforward and PID loop tuning indicate that the location precision and velocity stability have reached a high level. The experimental results of LDW of lines on the SS work piece with a diameter 30 mm and a radius equal to 100 mm are given. The section analysis of the lines on the photoresist by the atomic force microscope (AFM) after exposure and development is performed. The results show that line width is about 3.0 m
and the steep sides of the lines are parallel to each other.
A NEW APROACH FOR PROCESSING DATA OF TRANSIENT RESPONSE TO A SMALL AMPLITUDE POTENTIAL STEP
期刊论文
OAI收割
ACTA PHYSICO-CHIMICA SINICA, 1992, 卷号: 8, 期号: 2, 页码: 218-225
作者:
Song Guangling
;
Cao Chunan
;
Lin Haichao
  |  
收藏
  |  
浏览/下载:17/0
  |  
提交时间:2021/02/02
Linear response
Transient process
Potentiostatic step
Parameter determination