中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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A 2.5 ppm/degrees C Voltage Reference Combining Traditional BGR and ZTC MOSFET High-Order Curvature Compensation 期刊论文  OAI收割
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2021, 卷号: 68, 期号: 4, 页码: 1093-1097
作者:  
Liu, Xifeng;  Liang, Shan;  Liu, Wenju;  Sun, Ping
  |  收藏  |  浏览/下载:38/0  |  提交时间:2021/05/17
A new method on estimating object emissivity by using four times measuring and principle of temperature compensation 期刊论文  OAI收割
JOURNAL OF INFRARED AND MILLIMETER WAVES, 2017, 卷号: 36, 期号: 6, 页码: 783-+
作者:  
Zhang Ren-Hua;  Mi Su-Jnan;  Tian Jing;  Li Zhao-Liang;  Su Hong-Bo
  |  收藏  |  浏览/下载:28/0  |  提交时间:2019/05/30
A new method on estimating object emissivity by using four times measuring and principle of temperature compensation 期刊论文  OAI收割
JOURNAL OF INFRARED AND MILLIMETER WAVES, 2017, 卷号: 36, 期号: 6, 页码: 783-+
作者:  
Zhang Ren-Hua
  |  收藏  |  浏览/下载:10/0  |  提交时间:2019/05/30
Design of reimaging F/1.0 long-wavelength infrared optical system (EI CONFERENCE) 会议论文  OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Advances in Infrared Imaging and Applications, May 24, 2011 - May 24, 2011, Beijing, China
作者:  
Zhang X.;  Zhang X.;  Zhang X.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
A reimaging F/1.0 long-wavelength infrared optical system is proposed. The design has a flexible opto-mechanical layout. The design process is as follows. Firstly  the catadioptric reimaging system consists of two reflecting mirrors and a relay lenses. Two reflecting mirrors make up of the first imaging system and are therefore free of chromatic aberrations  while low dispersion lenses were used in the reimaging system  so the optical system do not need achromatic design for a high image quality. Then  to correct high-order aberrations resulting from large relative aperture  more parameters need to be used with aspheric or diffractive surfaces due to modern optic technology development. Here  aspheric is selected for easily manufacture. Finally  the design is completed with the help of ZEMAX software. The effective focal length of the objective is 120mm and the field of view (FOV) is 4. The simulated final design shows adequate image quality and the modulation transfer function (MTF) is close to diffraction limit. The effect of the surrounding environmental temperature is analyzed using the concept of thermal defocusing  and the thermal compensation is discussed. 2011 Copyright Society of Photo-Optical Instrumentation Engineers (SPIE).  
The research on distortion measurement and compensation technology in photoelectricity measurement system (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
Hong F.; Mujun X.; Zhiqian W.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Design and fabrication of CGH for aspheric surface testing and its experimental comparison with null lens (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Zhao J.;  Zhang X.;  Zhang X.;  Zhang X.;  Li F.
收藏  |  浏览/下载:34/0  |  提交时间:2013/03/25
Computer-generated hologram (CGH) is an effective way to compensate wavefront in null test of aspheric surfaces and freeform surfaces. Our strategies of CGH design and fabrication for optical testing are presented  and an experiment demonstrating the compensation results of CGH and null lens is also reported. In order to design complex CGH  software was developed  with which we can design a CGH including three sections: main section for compensating wavefront in null test  alignment section for adjusting the relative position between CGH and interferometer  and fiducial section for projecting fiducial marks around the optics under test. The design result is represented in GDS II format file which could drive a laser-direct-writer- machine to fabricate a photomask. Then  a 1:1 replication process is applied to duplicate the patterns from photomask to a parallel optical substrate whose surface is error better than /60 rms. Finally  an off-axis aspheric surface was tested with CGH and null lens respectively. The test result with CGH (0.019rms) is almost the same as the result with null lens (0.020 rms). This experiment also demonstrated that fiducial marks projected by CGH can be used to guide the alignment of the optics and measurement of its off-axis distance. 2010 Copyright SPIE - The International Society for Optical Engineering.  
A low-cost cmos programmable temperature 期刊论文  iSwitch采集
Sensors, 2008, 卷号: 8, 期号: 5, 页码: 3150-3164
作者:  
Li, Yunlong;  Wu, Nanjian
收藏  |  浏览/下载:34/0  |  提交时间:2019/05/12
A low-cost CMOS programmable temperature 期刊论文  OAI收割
sensors, 2008, 卷号: 8, 期号: 5, 页码: 3150-3164
Li, YL; Wu, NJ
收藏  |  浏览/下载:56/2  |  提交时间:2010/03/08