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浏览/检索结果: 共4条，第1-4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     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Total solar irradiance monitors, space instruments for measuring total solar irradiance on FY-3 satellites 会议论文 Earth Observing Missions and Sensors: Development, Implementation, and Characterization III, October 13, 2014 - October 15, 2014, Beijing, China Wang H.; Wang Y.; Ye X.; Wang K.; Yang D.; Fang W.; Li H. 收藏  |  浏览/下载：16/0  |  提交时间：2015/04/27 Design and calibration of the solar irradiance monitor (EI CONFERENCE) 会议论文 International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China Yang D.-J.; Fang W.; Ye X.; Wang Y.-P.; Gong C.-H.; Zhang G.-W. 收藏  |  浏览/下载：18/0  |  提交时间：2013/03/25 The solar irradiance monitor (SIM)  with the design accuracy of 5  used to monitor the secular changes of the total solar irradiance on FY-3 satellite  takes the sun-scanning measurement method on-orbit. Compared to the sun-tracking measurement method  this method simplifies the structure and cuts the cost  but the measuring accuracy is affected by the sun-synchronous orbit  sunlight incidence angle and the installing angle of the SIM in the satellite. Through the ground calibration experiment  studies on the affection of different sunlight incidence angles to the measurement accuracy. First  by the satellite tool kit (STK) simulation software  simulates the orbital parameters of the sun-synchronous satellite  and calculates the Sun ascension and declination at any time. By the orbit coordinate transformation matrix gets the components of the Sun vectors to the axes of the satellite  and base on the components designs the field of view and the installing angles of the SIM. Then  designs and completes the calibration experiment to calibrate the affection of the incidence angles. Selecting 11 different angles between the sunlight and the satellite X-axis  measures the total solar irradiance by the SIM at each angle  and compares to the irradiances of the SIAR reference radiometers  and gets the coefficient curves of the three channels of the SIM. Finally  by the quadratic fitting  gets the correction equations on the incidence angles: R 1=5.7110-52 -2.45310 -3+1.0302  R2=2.8410-5-1. 96510-3+1.0314 and R3 =1.7210 -52-4.18410-4+0.9946. The equations will aimprove the on-orbit measurement accuracy of the solar irradiance  and are very important to the on-orbit data processing after the satellite launched. 2011 SPIE.   The research for EO imaging system simulation (EI CONFERENCE) 会议论文 International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings, September 9, 2007 - September 12, 2007, Beijing, China Yang H.-M.; Wang L.-J.; Fang Z.-L.; Zhang J.-P.; Zhang X. 收藏  |  浏览/下载：19/0  |  提交时间：2013/03/25 Electric-Optical (EO) imaging systems are modern systems  especially the one consists of aspheric optics and image processing called wavefront coding system. The design concept of this kind system is totally different from the traditional image system. The trade-off between the complexity of the image deconvolution and the depth of focus extended should be considered. So we establish a simulation model consisting of optical optimization design  system signal-to-noise ratio analysis and recovered image evaluation. The data can be exchanged among them. This simulation tools will be very useful in system design process.   Optoelectronic non-contact measuring method for the taper of a bore (EI CONFERENCE) 会议论文 ICO20: Optical Devices and Instruments, August 21, 2005 - August 26, 2005, Changchun, China Zhang L.; Tian Q.; Zhou X.; Yang L.; Fang Y.; Zhang G.; Xu X. 收藏  |  浏览/下载：30/0  |  提交时间：2013/03/25 Based on laser optical triangulation displacement and grating displacement inspecting principle  optoelectronic non-contact inspecting method and inspecting system for the taper of small-calibre bore are presented. In this paper  the constitute and overall structure of the system are described. Then  the taper inspecting method and principle of the bore are discussed and theoretically analyzed  and also  the corresponding mathematics model is established. As inner diameter measurement is an important parameter for the taper of small-bore  an inner diameter laser non-contact measuring method is presented based on the structure characteristic of the taper of small-calibre bore  which adopted optoelectronic probe sensitive device (PSD) and laser optical triangulation inspecting principle. And then  the laser probe inner diameter measuring system is designed based them. Moreover  the measuring principle  the project of optical system of this measuring system are illuminated in detail in this article. The accuracy of inspecting system is verified by experiment. The results showed that the measuring error of inspecting system is superior to 0.005  and the inspecting repetition is superior to 0.003. It indicates that the system can fulfill the inspecting accuracy demand for inspecting the taper of the small-calibre bore  and the inspecting method is applicable.