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Normal moveout for long offset in isotropic media using the Pade approximation 期刊论文  OAI收割
APPLIED GEOPHYSICS, 2016, 卷号: 13, 期号: 4, 页码: 658-666
作者:  Song Han-Jie;  Zhang Jin-Hai;  Yao Zhen-Xing
  |  收藏  |  浏览/下载：25/0  |  提交时间：2017/11/17
Seismic wave propagation through surface basalts - implications for coal seismic surveys 期刊论文  OAI收割
EXPLORATION GEOPHYSICS, 2010, 卷号: 41, 期号: 1, 页码: 1-8
作者:  Sun, Weijia;  Zhou, Binzhong;  Hatherly, Peter;  Fu, Li-Yun
  |  收藏  |  浏览/下载：23/0  |  提交时间：2018/09/26
Seismic wave propagation through surface basalts - implications for coal seismic surveys 期刊论文  OAI收割
EXPLORATION GEOPHYSICS, 2010, 卷号: 41, 期号: 1, 页码: 1-8
作者:  Sun, Weijia;  Zhou, Binzhong;  Hatherly, Peter;  Fu, Li-Yun
  |  收藏  |  浏览/下载：18/0  |  提交时间：2018/09/26
Study of the long bipole and large power electromagnetic field 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2008, 卷号: 51, 期号: 6, 页码: 1917-1928
作者:  Di Qing-Yun;  Wang Miao-Yue;  Wang Ruo;  Wang Guang-Jie
  |  收藏  |  浏览/下载：9/0  |  提交时间：2018/09/26
Study of the long bipole and large power electromagnetic field 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2008, 卷号: 51, 期号: 6, 页码: 1917-1928
作者:  Di Qing-Yun;  Wang Miao-Yue;  Wang Ruo;  Wang Guang-Jie
  |  收藏  |  浏览/下载：18/0  |  提交时间：2018/09/26
Research on 10.6 m laser beam monitoring in CO2 laser processing system (EI CONFERENCE) 会议论文  OAI收割
Infrared Materials, Devices, and Applications, November 12, 2007 - November 15, 2007, Beijing, China
作者:  Gao Y.;  Shao S.
收藏  |  浏览/下载：25/0  |  提交时间：2013/03/25
It is a key point of CO2 laser beam monitoring in the CO 2 laser processing system to achieve alignment between CO2 laser and PL (pointing and launching) system. By monitoring the angle offset of CO2 laser beam  the compensation can be gotten witch is given to fast-steering mirror to rectify the direction of laser beam. But the normal photoelectric detector can not get the laser signal because of CO2 laser's high energy and long wavelength. Its wavelength is 10.6m and its power can reach kW level. Consequently  it is difficult to detect the high-energy 10.6m laser beam directly. So  we monitored the output mirror of laser resonator superseded the laser beam  indirectly. The laser beam monitoring system could be designed based on CCD laser auto-collimation angular measurement principle and image processing method. In this paper  application of CCD laser auto-collimation angular measurement principle and image processing method for CO2 laser beam monitoring system is introduced particularly  After design  fabrication and alignment  the monitoring system can be used for experimental study that including angular measurement accuracy and angle offset measurement of CO2 laser beam. Angle offset range and angle variation rule of CO2 laser beam is also can be acquired for further research.  
Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2006, 卷号: 49, 期号: 6, 页码: 1770-1778
作者:  You Jian-Jun;  Chang Xu;  Liu Yi-Ke
  |  收藏  |  浏览/下载：13/0  |  提交时间：2018/09/26
Optimization of nonhyperbolic moveout correction equation of long-offset seismic data in VTI media 期刊论文  OAI收割
CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION, 2006, 卷号: 49, 期号: 6, 页码: 1770-1778
作者:  You Jian-Jun;  Chang Xu;  Liu Yi-Ke
  |  收藏  |  浏览/下载：13/0  |  提交时间：2018/09/26