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Optimization of working cathode position in sleeve-type bioelectrochemical system with inner chamber/outer chamber for azo dye treatment 期刊论文  OAI收割
BIORESOURCE TECHNOLOGY, 2015, 卷号: 198, 页码: 437-444
作者:  
Kong, Fanying;  Wang, Aijie;  Ren, Hong-Yu
  |  收藏  |  浏览/下载:29/0  |  提交时间:2016/03/15
Method for recovering dynamic position of photoelectric encoder (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Sun Y.;  Liu Y.-S.;  Liang L.-H.;  Sun Y.;  Wan Q.-H.
收藏  |  浏览/下载:16/0  |  提交时间:2013/03/25
This paper presents a method to recover dynamic position of photoelectric encoder. While working at dynamic state  original outputs of the photoelectric encoder are in theory two sine or triangular signals with a phase difference of /2. However  there are still deviations of actual output signals. Interpolating on the basis of this deviation signal will result in interpolation errors. In dynamic state  true original signal data obtained by data acquisition system is a time equation. Through processing these data by data equiangular and harmonic analysis  the equation will be converted from time domain to position domain and an original position equation can be formed. Then the interpolation errors also can be obtained. By this method  the interpolation errors can be checked in dynamic state and it can also provide electric interpolation basis so that to improve dynamic interpolation precision of the encoder. Software simulation and experimental analysis all prove the method effective. This method is he basis in theory for precision checking and calibration in motion. 2009 SPIE.  
Autofocusing technique based on image processing for remote-sensing camera (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2007 - Image Processing, September 9, 2007 - September 12, 2007, Beijing, China
作者:  
Wang X.;  Xu S.-Y.;  Wang X.;  Wang X.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
The key to the auto-focusing technique based on image processing is the selection of focus measure reflecting image definition. Usually the measures derived are on the premise of the images acquired with the same scene. As for the remote-sensing camera working in linear CCD push-broom imaging mode  the premise doesn't exist because the scenes shot are different at any moment  which brings about difficulties to the selection of the focus measure. To evaluate the image definition  the focus measure based on blur estimation for rough adjustment is proposed to estimate the focused position by only two different lens positions  which greatly saves the auto-focusing time. Another evaluation function based on edge sharpness is developed to find best imaging position in the narrow range. Simulations show that the combination of the two measures has the advantages of rapid reaction and high accuracy.  
CCD imaging system for the EUV Solar telescope (EI CONFERENCE) 会议论文  OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Yan G.; Qian S.; Bing-Xun Y. E.
收藏  |  浏览/下载:17/0  |  提交时间:2013/03/25