中国科学院机构知识库网格系统: 检索

Image-Based Visual Servoing for Position Alignment With Orthogonal Binocular Vision 期刊论文 OAI收割
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 卷号: 72, 页码: 10
作者: Hao, Tiantian; Xu, De

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收藏 | 浏览/下载：18/0 | 提交时间：2023/11/17

Binocular vision image-based visual servoing (IBVS) control interaction matrix position alignment sensitivity for motion

Optimization of focusing position in laser induced breakdown spectroscopy system based on quantitative analysis internal standard method of steel 会议论文 OAI收割
Kunming, China, 2021-12-07
作者: Li, Zhicong; Yang, Jianfeng; Wang, Zhiyuan; Zhao, Yiyi; Huang, Shuaidong

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收藏 | 浏览/下载：54/0 | 提交时间：2022/04/27

Laser induced breakdown spectroscopy(LIBS) Quantitative analysis Focus position Detection sensitivity Limit of detection(LOD)

Numerical model for homogeneous cohesive dam breaching due to overtopping failure 期刊论文 OAI收割
Journal of Mountain Science, 2017, 卷号: 14, 期号: 3, 页码: 571-580
作者: ZHONG Qi-ming; CHEN Sheng-shui; DENG Zhao

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收藏 | 浏览/下载：38/0 | 提交时间：2017/02/27

Homogeneous Cohesive Dam Overtopping Headcut Initial Scour Position Sensitivity Analysis Models Comparison

Experimental research on a THGEM-based thermal neutron detector 期刊论文 OAI收割
CHINESE PHYSICS C, 2015, 卷号: 39, 期号: 5, 页码: 56002
作者: Yang L(杨雷); Zhou JR(周健荣); Sun ZJ(孙志嘉); Wang YF(王艳凤); Yang GA(杨桂安)

收藏 | 浏览/下载：47/0 | 提交时间：2016/04/18

THGEM boron convertor thermal neutron detector two-dimensional position sensitivity

Optically Powered ZnO Nanowires with Symmetric and Asymmetric Contacts 期刊论文 OAI收割
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 2013, 卷号: 13, 期号: 2, 页码: 1203
Zhang, LH; Zhang, XX; Lai, JL; Liu, Z; Hou, SM; Xie, SS; Gao, M

收藏 | 浏览/下载：31/0 | 提交时间：2014/01/16

ZnO Nanowire Photovoltage Photocurrent Position Sensitivity Schottky Barrier

Accuracy synthesis of a 3-RPS parallel robot based on manufacturing costs (EI CONFERENCE) 会议论文 OAI收割
31st Chinese Control Conference, CCC 2012, July 25, 2012 - July 27, 2012, Hefei, China
Yao T.-K.; Xi Z.; Feng Z.; Zhang L.-M.; Yong W.

收藏 | 浏览/下载：42/0 | 提交时间：2013/03/25

Pose accuracy is an important issue for parallel robot being used as mirror supporting system of telescope. One challenging topic is the accuracy synthesis which deals with the optimal design of the manufacturing and assembling tolerances of each component under the given pose accuracy. First the error model of the 3-RPS parallel robot is built based on total derivation of the kinematic equations. And the error variable of each spherical or rotate joint can be expressed as a single boundary error parameter but not three independent position parameters. Then the accuracy synthesis model is formulated taking the manufacturing costs as the optimization objective and the accuracy requirements as the constraint condition. Finally the genetic algorithm is used to solve the optimization problem and a simulation example is given. The results show that the accuracy synthesis method based on manufacturing costs can satisfy the need of pose accuracy and is better for engineering application than the method based on error sensitivity. 2012 Chinese Assoc of Automati.

The Research of real time auto-recognition of the moire fringe (EI CONFERENCE) 会议论文 OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Imaging Detectors and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Wang M.-J.; Wu Z.-G.

收藏 | 浏览/下载：24/0 | 提交时间：2013/03/25

Measuring the movement of raster by the method of moire fringe has the advantage of high sensitivity high resolution and non-contacted measurement. The characteristic of moire fringe is that the image is white alternate with black the angle of the stripes is uniform the width of the stripes is uniform the terminators of the stripes aren't clear. A fast method that can figure out the width and angle of the moire fringe precisely is put forward in this paper. It calculates the angle the stripes firstly. According to the principle of the minimum mean squared error (MMSE) the closer a series of data is the smaller the value of the MMSE will be. The method is described as follows: It takes the image's center as the origin 180 beelines pass through the origin with the same angle interval. it calculates the value of the minimum mean squared error of the 180 beelines and find out the least one among those then the angle of the moire fringe comes out primarily. In order to improving the calculating precision of moire fringe 60 equal angles are divided in the neighborhood of the angle then a precise angle of moire fringe is calculated according to the principle of the MMSE. After getting out the angle of the moire fringe we begin to calculate the width of moire fringe. A line vertical with the moire fringe is drawn and we can get the width of the moire fringe by the vertical line. In order to get over the influence of the noise an effective area with the shape of diamond is selected in the image. The data of area is accumulated and projected according to the direction of moire fringe and a sine curve come out. The width of moire fringe can be obtained by getting the position of the first wave crest the position of the last wave crest and the number of wave crest. Experiments prove that the precision of the method put forward in this paper is enhanced in comparison with the traditional frequency method the precision of width calculation achieves to 99.6% according to the evaluation indicators of width detection error. The computing speed is boosted largely compared with traditional method and it can achieve with 15 ms that satisfying the demand of real time. 2011 SPIE.

Design and simulation of a beam position monitor for the high current proton linac 期刊论文 OAI收割
中国物理C, 2009, 期号: 3, 页码: 240-244
作者: Ruan YF(阮玉芳); Xu TG(徐韬光); Fu SN(傅世年)

收藏 | 浏览/下载：27/0 | 提交时间：2015/12/14

beam position monitor characteristic impedance sensitivity low β

Design and simulation of a beam position monitor for the high current proton linac 期刊论文 OAI收割
CHINESE PHYSICS C, 2009, 卷号: 33, 期号: 3, 页码: #REF!
作者: Ruan YF(阮玉芳); Xu TG(徐韬光); Fu SN(傅世年); Ruan, YF; Xu, TG

收藏 | 浏览/下载：31/0 | 提交时间：2016/04/12

beam position monitor characteristic impedance sensitivity low beta

Rf measurements of a c-band cavity beam position monitor 期刊论文 iSwitch采集
Chinese physics c, 2008, 卷号: 32, 期号: 5, 页码: 385-388
作者: Chu Jian-Hua; Tong De-Chun; Zhao Zhen-Tang

收藏 | 浏览/下载：20/0 | 提交时间：2019/05/10

Cavity bpm Tm110 mode S-parameter Position sensitivity