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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
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长春光学精密机械与物... [4]
力学研究所 [1]
沈阳自动化研究所 [1]
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OAI收割 [6]
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会议论文 [5]
期刊论文 [1]
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2019 [1]
2018 [1]
2013 [1]
2011 [2]
2006 [1]
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A Data Quality Improvement Method Based on the Greedy Algorithm
会议论文
OAI收割
Nanjing, China, August 24-25, 2019
作者:
Wang ZF(王忠锋)
;
Fu YT(付亚同)
;
Song CH(宋纯贺)
;
Ge WC(葛维春)
;
Qiao L(乔林)
  |  
收藏
  |  
浏览/下载:23/0
  |  
提交时间:2019/12/22
Data quality
Improvement order
Greedy algorithm
A stability-improved efficient deconvolution algorithm based on B-splines by appending a nonlinear regularization
期刊论文
OAI收割
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING, 2018, 卷号: 164, 页码: 400-416
作者:
Liu WC(刘文超)
;
Liu YW(刘曰武)
;
Zhu WY
;
Sun HD
  |  
收藏
  |  
浏览/下载:37/0
  |  
提交时间:2018/10/30
Deconvolution
Nonlinear least-squares problem
Duhamel principle
Stability improvement
Second-order B-spline functions
Error analysis of the micro temperature control system (EI CONFERENCE)
会议论文
OAI收割
2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China
Han Z.
;
Song K.
收藏
  |  
浏览/下载:48/0
  |  
提交时间:2013/03/25
In order to improve the measurement accuracy of optical detection instruments
temperature control circuits for narrow band-pass filters are given
and the error analysis is applied to temperature control circuits.The principle of a temperature measurement circuit is studied and the method of a driver circuit is described. A variety of influencing factors of temperature control accuracy are discussed. Moreover
for these error factors
improvement measures are given to reduce the nonlinear error. Finally
circuit parameter error is quantified to propose a calculation method for margin of error in a temperature control system. (2013) Trans Tech Publications
Switzerland.
Design of motion adjusting system for space camera based on ultrasonic motor (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
作者:
Sun Z.
收藏
  |  
浏览/下载:85/0
  |  
提交时间:2013/03/25
Drift angle is a transverse intersection angle of vector of image motion of the space camera. Adjusting the angle could reduce the influence on image quality. Ultrasonic motor (USM) is a new type of actuator using ultrasonic wave stimulated by piezoelectric ceramics. They have many advantages in comparison with conventional electromagnetic motors. In this paper
some improvement was designed for control system of drift adjusting mechanism. Based on ultrasonic motor T-60 was designed the drift adjusting system
which is composed of the drift adjusting mechanical frame
the ultrasonic motor
the driver of Ultrasonic Motor
the photoelectric encoder and the drift adjusting controller. The TMS320F28335 DSP was adopted as the calculation and control processor
photoelectric encoder was used as sensor of position closed loop system and the voltage driving circuit designed as generator of ultrasonic wave. It was built the mathematic model of drive circuit of the ultrasonic motor T-60 using matlab modules. In order to verify the validity of the drift adjusting system
was introduced the source of the disturbance
and made simulation analysis. It designed the control systems of motor drive for drift adjusting system with the improved PID control. The drift angle adjusting system has such advantages as the small space
simple configuration
high position control precision
fine repeatability
self locking property and low powers. It showed that the system could accomplish the mission of drift angle adjusting excellent. 2011 SPIE.
The error analysis of automated biochemical analyzer (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Computing, Information and Control, ICCIC 2011, September 17, 2011 - September 18, 2011, Wuhan, China
Qinghai C.
;
Yihui W.
;
Haiwen L.
;
Peng H.
收藏
  |  
浏览/下载:33/0
  |  
提交时间:2013/03/25
In order to find out the relationships between the four error sources
namely
locating error
optics system fluctuations
sampling error and temperature fluctuations
and the accuracy of the instrument
we analyzed each relationship of them
and found that the effect of locating error is so tiny that it can be ignored
finally established the total error model and the model of the allowed noise of the optics system of the instrument. Analysis and the models may supply a reliable theory evidence for the improvement of the instrument and the designing of similar instruments. 2011 Springer-Verlag.
Study on the fabrication of blazed grating with sub-micrometer space on aluminum film (EI CONFERENCE)
会议论文
OAI收割
12th International Manufacturing Conference in China, IMCC2006, September 21, 2006 - September 23, 2006, Xi'an, China
Lun S.
;
Hao D.
;
Qi X.
收藏
  |  
浏览/下载:16/0
  |  
提交时间:2013/03/25
The saw tooth grooves of blazed grating ruled by ruling engine are formed by diamond tool which presses on the aluminum film evaporated on the substrate of optical glass or metal. The real shape of ruled saw tooth groove is different from that of the ideal groove and the ruling process indicates that there are the zero order planes
similar to the flat tops
on the grating grooves. The results of Fourier analysis for the real ruled grating featuring the zero order plane structure shows that the flat top width is an important factor for grating efficiency. Additionally
bigger pressure value loaded on the diamond tool and bigger lateral pressure value on the aluminum film will be benefit to the improvement of grating diffraction efficiency. Based on the grating interferometer
the high precision positioning control system of ruling engine guarantees the accuracy of the grooves space. High density blazed grating whose space is 0.83p.m is manufactured and its' grooves spaces are very equidistant and uniform under the view field of AFM. And the infrared blazed grating
whose diffraction efficiency in the first order is up to 97 percent
is ruled successfully also.