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• 会议论文 [12]

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浏览/检索结果: 共12条，第1-10条 帮助 限定条件 内容类型：会议论文    专题：长春光学精密机械与物理研究所    第一署名单位    第一作者单位    通讯作者单位     条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择提交时间升序提交时间降序题名升序题名降序作者升序作者降序发表日期升序发表日期降序 Homodyne displacement measuring interferometer probe for optical coordinate measuring machine with tip and tilt sensitivity 会议论文  OAI收割 Optifab 2015, NY, 2015 - October 15 作者:  Butler, Sam C.;  Ricci, Michael A.;  Wang, Chen;  Wei, Qun;  Ellis, Jonathan D. 收藏  |  浏览/下载：77/0  |  提交时间：2016/07/18 High efficiency abrasive waterjet dressing of diamond grinding wheel 会议论文  OAI收割 17th International Symposium on Advances in Abrasive Technology, ISAAT 2014, September 22, 2014 - September 25, 2014, Kailua, HI, United states 作者:  Wang J. 收藏  |  浏览/下载：112/0  |  提交时间：2015/04/27 Elliptical concave surface test 会议论文  OAI收割 2012 作者:  Wang C. 收藏  |  浏览/下载：5/0  |  提交时间：2013/03/28 Dynamics Modeling for Stabilized Platform of Roll-Swing Seeker Based on Lie Groups 会议论文  OAI收割 2011 作者:  Liu H.;  Chen J.;  Liu H.;  Liu H. 收藏  |  浏览/下载：8/0  |  提交时间：2013/03/28 The research on servo control technology of O-E theodolite based on angular acceleration sensor (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 Wei L.; Jin G.; Juan C. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 A new servo control methods for O-E theodolite is presented in this paper. The methods integrates optimally feed forward and feedback control  and adopts acceleration delay compensation based on velocity delay compensation  then achieves servo control of O-E theodolite effectively. Furthermore  Angular acceleration sensor is applied as information resources  and adaptive filter is formed to provide with feed forward control signal in the methods. For double closed loop servo control system of O-E theodolite  the location correction loop and velocity correction loop are analyzed and designed. Simulation and experimental results show that comparing with traditional methods  this servo control methods can improve significantly tracking precision and stability of O-E theodolite. 2010 IEEE.   Design and implementation of a high speed CMOS imaging system (EI CONFERENCE) 会议论文  OAI收割 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China 作者:  He X. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 In order to meet the needs of measurement of highspeed target  the timing sequence of LUPA300  an array CMOS image sensor of CYPRESS  is analyzed. The driving timing and control software is designed for the array CMOS sensor. High speed CMOS imaging system  whose hardware platform is FPGA  is emphasized. Real-time non-uniformity correction for CMOS sensor is implemented in the output stage. The experimental result shows that the system could control the CMOS sensor flexibly. The image is clear and stable. The maximum resolution of the image is 640H480V pixels and the system can operate up to 250 frames per second in full resolution. 2010 IEEE.   The design of SD-SDI video conversion card based on FPGA (EI CONFERENCE) 会议论文  OAI收割 2010 3rd International Conference on Advanced Computer Theory and Engineering, ICACTE 2010, August 20, 2010 - August 22, 2010, Chengdu, China 作者:  He X. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 Based on the host chip of FPGA  it designed digital video conversion equipment  and completed the conversion between video with SD-SDI interface and Camera Link. After collecting the video from the camera  demosaicing  converting the color space  de-interlacing  interlacing and other operation  the circuit implemented the real-time video conversion between both different interfaces. With much flexibility  high integration and less hardware resources  the whole system completed a high-quality video solution. 2010 IEEE.   Heterogeneous Architecture-Based Software Reliability Estimation: Case Study 会议论文  OAI收割 2008 Wei Y.; Shen X. H.; Ieee Computer S. O. C. 收藏  |  浏览/下载：15/0  |  提交时间：2013/03/28 Effect of interface on luminescence properties in ZnO/MgZnO heterostructures (EI CONFERENCE) 会议论文  OAI收割 Wei Z. P.; Lu Y. M.; Shen D. Z.; Wu C. X.; Zhang Z. Z.; Zhao D. X.; Zhang J. Y.; Fan X. W. 收藏  |  浏览/下载：17/0  |  提交时间：2013/03/25 A set of ZnO/MgZnO heterostructures with well widths  Lw  varying from 2 to 20 nm has been grown by plasma-assisted molecular-beam epitaxy (P-MBE). We present a room-temperature (RT) study of the well-width-dependent photoluminescence (PL) spectra and carrier lifetimes in ZnO/MgZnO heterostructures. Bi-exponential process is seen at RT time-decay curves of the luminescence from the well layers. The fast process is from the recombination of the free exciton  while the slow process is attributing to the recombination of the localized exciton in the interface of ZnO and MgZnO. It is also confirmed from the PL peak shift of time-resolved PL spectra. With decreasing the well thickness  the fast process gradually increases and dominantly contributes to the PL spectrum due to the interface improvement. 2006 Elsevier B.V. All rights reserved.   Raman spectra and phonon modes of MgxZn1-xO alloy films (EI CONFERENCE) 会议论文  OAI收割 12th International Conference on II-VI Compounds, September 12, 2005 - September 16, 2005, Warsaw, Poland Wei Z. P.; Lu Y. M.; Shen D. Z.; Zhang Z. Z.; Wu C. X.; Zhang J. Y.; Yao B.; Fan X. W. 收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25 Hexagonal MgxZn1-xO alloy layers with 0 &le 0.3 have been grown by plasma-assisted molecular beam epitaxy on sapphire (006) and Si (111) substrates. Their crystal structures are characterized by x-ray diffraction spectroscopy. The nonresonant and resonant Raman spectra were measured using 488 nm line from Ar+ laser  and 325 nm line from He-Cd laser by backscattering geometry. Four Raman modes (E2 high  LO  TO  multiphonon processes) were observed in the nonresonant Raman spectra of hexagonal MgxZn1-xO with different Mg contents. The optical phonon frequencies were found to display one-mode behaviour for all the samples since no separate ZnO- and MgO-like modes were observed. The long-wavelength frequencies of ZnO-like optical phonons measured in the resonant Raman spectra can be expressed as linear functions of x. These behaviours can be explained within a modified random-element-isodisplacement model (MREI). 2006 WILEY-VCH Verlag GmbH Co. KGaA.