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Error analysis of the micro temperature control system 会议论文
2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China
Han Z.; Song K.
收藏  |  浏览/下载：12/0  |  提交时间：2014/05/15
Error analysis of the micro temperature control system (EI CONFERENCE) 会议论文
2012 International Conference on Measurement, Instrumentation and Automation, ICMIA 2012, September 15, 2012 - September 16, 2012, Guangzhou, China
Han Z.; Song K.
收藏  |  浏览/下载：41/0  |  提交时间：2013/03/25
Optical design of zoom hyper spectral system 会议论文
Asia Pacific Conference on Optics Manufacture 2012, APCOM 2012, August 26, 2012 - August 28, 2012, Changchun, China
Liu Z.; Cui C.; Song Y.
收藏  |  浏览/下载：10/0  |  提交时间：2014/05/15
Design of thermostat system based on Proteus simulation software (EI CONFERENCE) 会议论文
2011 International Conference on Electronic and Mechanical Engineering and Information Technology, EMEIT 2011, August 12, 2011 - August 14, 2011, Harbin, China
Han Z.; Song K.
收藏  |  浏览/下载：33/0  |  提交时间：2013/03/25
In order to solve the problem of precise temperature control  the thermoelectric cooler (TEC) principle widely used is analyzed for the design of the whole control process and selection of control parameters  and then accurate simulation model of the TEC is established in Proteus simulation software. Moreover  combined with the traditional circuit simulation model  the temperature control loop is designed  and the response characteristics of the system are tested using an input signal similar to the unit-step function to achieve the precise temperature control. Simulation results show that the proposed control circuits can precisely convert error signal to output voltage sent to TEC model  and TEC model behaves approximately like a two-pole system. The first pole starts at 20mHz and a second pole at 1Hz. 2011 IEEE.  
Analysis Model of X-ray Coherent Scatter Images 会议论文
2010
Liu T. H.; Li Y. H.; Liu J. X.; Qiao S.; Song J. Z.
收藏  |  浏览/下载：8/0  |  提交时间：2013/03/28
Study on annular polishing for a rectangle optical flat with high aspect ratio (EI CONFERENCE) 会议论文
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, April 26, 2010 - April 29, 2010, Dalian, China
Ma Z.; Li J.; Song S.
收藏  |  浏览/下载：13/0  |  提交时间：2013/03/25
Study on annular polishing for a rectangle optical flat with high aspect ratio 会议论文
2010
Ma Z. C.; Li J. F.; Song S. M.
收藏  |  浏览/下载：2/0  |  提交时间：2013/03/28
The Algorithm of Extracting Energy Curve from X-ray Coherent Scatter Images 会议论文
2010
Liu T. H.; Liu J. X.; Qiao S.; Xie C. J.; Song J. Z.; Ieee
收藏  |  浏览/下载：3/0  |  提交时间：2013/03/28
Electrophoresis deposition of carbon nanotubes for triode type CNT-FED cathode 会议论文
2007
Lu W. H.; Song H.; Li Z. M.; Zhao H.; Cao L. Z.; Zhao H. F.; Jiang H.; Miao G. Q.; Jin Y. X.; East China Normal Unviersity P.
收藏  |  浏览/下载：159/0  |  提交时间：2013/03/28
The synthesis and field emission property of carbon nanotubes on carbon fibers substrate (EI CONFERENCE) 会议论文
Technical Digest of the 20th International Vacuum Nanoelectronics Conference, IVNC 07, July 8, 2008 - July 12, 2008, Chicago, IL, United states
Leyong Z.; Weibiao W.; Jingqiu L.; Yuxue X.; Da L.; Song C.; Haifeng Z.
收藏  |  浏览/下载：21/0  |  提交时间：2013/03/25
Using ferrocene as catalyst precursor  C2H2 as carbon source  carbon nanotubes (CNTs) with uniform density were synthesized on carbon fibers substrate by floating catalyst method. The morphology and microstructure were characterized by field emission scanning electron microscope (FESEM) and high-resolution transmission electron microscopy (HRTEM). The observation showed that the length of CNTs is about 2 m  the average space between adjacent CNTs is about 300 nm and the diameter of CNT is about 45 nm. The less dense "short and stubby" aligned CNTs films should have good electron field emission characteristics. The results of field emission showed that the emission current of CNTs/carbon fibers was 5 A at the field of 2.5 V/m  and the emission current can be 280 A with a field of 7 V/m (the specimen area is 0.25 cm2 and the distance between cathode and anode is 200 m). The calculation based on the F-N plot indicated that the field enhancement factor of CNTs tip is 499122. Using the conductivity and chemical stability of carbon fibers and the uniform and sparse density distribution of CNTs on carbon fibers substrate  the tip predominance of carbon nanotubes can be exerted  and simultaneously the effect of screening effects between adjacent carbon nanotubes on the field emission performance can also be effectively decreased. The CNTs synthesized on carbon fibers substrate has many predominances for the fabrication of cold cathode devices. For example  using the removability of carbon fibers  the cathode of CNTs/carbon fibers can be arbitrarily moved  enlaced or combined to form different patterns  and the cathode of CNTs/carbon fibers can be also fabricated in large size. Therefore  CNTs/carbon fibers may have potential application in field emission displays.  

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