中国开放科研知识云: 检索

Development, Calibration, and Image Processing of Underwater Structured Light Vision System: A Survey 期刊论文
IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 2023, 卷号: 72, 页码: 18
作者: Fan, Junfeng; Wang, Xuan; Zhou, Chao; Ou, Yaming; Jing, Fengshui

收藏 | 浏览/下载：4/0 | 提交时间：2023/11/17

Machine vision Measurement by laser beam Three-dimensional displays Cameras Sea measurements Calibration Image processing system calibration system development underwater structured light vision system

Characterization of Au ring microelectrode with cyclic voltammetry and AC impedance spectroscopy 会议论文
作者: Jing, Weixuan; Zhou, Fan; Chen, Lujia; Jiang, Zhuangde; Niu, Lingling

收藏 | 浏览/下载：10/0 | 提交时间：2019/12/03

Ac impedance spectroscopy Cyclic voltammograms Electrochemical characterizations Electrochemical response Electron beam evaporation Frequency spectra Reversible systems Three electrode-system

Optimization of a three slit collimation system for a SAXS camera with a divergent beam 期刊论文
JOURNAL OF X-RAY SCIENCE AND TECHNOLOGY, 2012, 卷号: 20, 期号: 3, 页码: 331-338
作者: Li ZH(李志宏); Li, ZH; Wu ZH(吴中华); Wu ZY(吴自玉); 刘俊;Li, DF

收藏 | 浏览/下载：23/0 | 提交时间：2016/04/08

SAXS resolution three slits collimation system divergent beam

Study on the method of error identification and compensation for Gear Measuring Center 会议论文
作者: Wan, Peng; Guo, Junjie; Li, Haitao

收藏 | 浏览/下载：7/0 | 提交时间：2019/12/10

Three-beam laser detection technology Homogeneous coordinate transformation Multi-body system theory Gear Measuring Center(GMC)

Combined method of super element and substructure for analysis of ILTDBS reticulated mega-structure with single-layer latticed shell substructures 期刊论文
FINITE ELEMENTS IN ANALYSIS AND DESIGN, 2010, 卷号: 46, 期号: 7, 页码: 563-570
作者: He, YJ; Zhou, XH; Hou, PF

收藏 | 浏览/下载：2/0 | 提交时间：2015/12/22

Reticulated mega-structure Intersecting-latticed-three-dimensional-beam-system (ILTDBS) Configuration Finite element method Super element Substructure

Analysis and application for a new type of optical fiber interferometer with three-beam system - art. no. 62921B 会议论文
INTERFEROMETRY XIII: TECHNIQUES AND ANALYSIS, Conference on Interferometry XIII, San Diego, CA, Web of Science
Yin, Kai; Wang, Liwei; Ding, Tianhuai; Zhang, Min; Liao, Yanbiao

收藏 | 浏览/下载：4/0

Analysis and application for a new type of optical fiber interferometer with three-beam system - art. no. 65952E 会议论文
FUNDAMENTAL PROBLEMS OF OPTOELECTRONICS AND MICROELECTRONICS III, PTS 1 AND 2, Conference on Fundamental Problems of Optoelectronics and Microelectronics III, Harbin, PEOPLES R CHINA, Web of Science
Yin, Kai; Wang, Liwei; Ding, Tianhuai; Zhang, Min; Liao, Yanbiao

收藏 | 浏览/下载：4/0

Analysis and application for a new type of optical fiber interferometer with three-beam system 会议论文
Proceedings of the SPIE - The International Society for Optical Engineering, Fundamental Problems of Optoelectronics and Microelectronics III, Harbin, China, INSPEC
Kai Yin; Liwei Wang; Tianhuai Ding; Min Zhang; Yanbiao Liao

收藏 | 浏览/下载：2/0

LD-pumped acousto-optically Q-switched 473 nm laser with high repetition rate 期刊论文
2010, 2010
Feng Li-chun; Huo Yu-jing; He Shu-fang

收藏 | 浏览/下载：3/0

Far-field focusing of laser beam based on digital image processing techniques (EI CONFERENCE) 会议论文
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
Zhang H.-Y.; Zhao S.; Guo J.; Liu L.-S.; Tian Y.-Z.

收藏 | 浏览/下载：21/0 | 提交时间：2013/03/25

In order to lead the laser beam transmit in the atmosphere convergently an experiment of laser focus at the distance of 450m and 300m has been operated in the outdoor place. The actual manipulations are as follows: Firstly the laser was collimated by a beam expander then the near-parallel laser beam was transmitted with a Galileo telescope system and the distance between the concave lens and the convex lens can be tuned through a precise displacement platform so the focus of the system changed due to the tiny displacement of the concave lens. Secondly the average power of the laser spot can be measured using power meter the power is 47.67mW and the standard deviation is 0.67mW while the focal length is 450m. Thirdly the energy distribution was found through the laser beam analyzer. The spot images were saved using the beam analyzer then the saved image can be processed with Matlab software afterwards. The function named EDGE and Sobel operator was used in the pre-processing of the saved image then method of median filter was used in the course of image de-noising and 53H filter was adopted in the signal analysis. The diameter of laser spot was obtained by the method above the diameter is 5.56mm and the standard deviation is 0.24mm. The spot center excursion is 0.56mm it is 10.43% of the total diameter of the laser spot. At last the key factors of the energy dissipation in the focusing system can be summarized as follows: restriction of the diffraction limit attenuation in the atmosphere geometrical aberration of optical system and the diffraction limit and the geometrical aberration are significant in the three factors above so we can reduce the impact of the both factors during the design of optical system. The reliable referenced data of the system design can be acquired through the primary experiment research. 2010 SPIE.

在结果中检索

相关链接

CORC

联系我们