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Performance Analysis of Flexure Bearing Component Radial Stiffness for Linear Compressors 线性压缩机柔性轴承构件径向刚度性能分析
红外技术 Pub Date : 2020-02-01 DOI: 10.3724/sp.j.7100931207
史 和春, 邹 丁立, 李 海英
{"title":"Performance Analysis of Flexure Bearing Component Radial Stiffness for Linear Compressors","authors":"史 和春, 邹 丁立, 李 海英","doi":"10.3724/sp.j.7100931207","DOIUrl":"https://doi.org/10.3724/sp.j.7100931207","url":null,"abstract":"： In the applications of linear compressors, flexure bearings maintain axial periodic motion of the piston without offset in the radial direction. This is very important for the seal clearance of the compressor. The performance of different thicknesses, number of slices, spacings, and spatial arrangements of flexure of the bearing component were compared on the basis of finite element analyses. The performance of radial stiffness and the torque characteristic has been especially considered. The conclusions drawn from this study can be used to guide the design of a flexure bearing component.","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46088788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
State Model Construction Method for Fast Steering Mirror and Its Control System Design 快速转向镜状态模型构建方法及其控制系统设计
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7100840884
Zhiwei Ai, Jianbo Ji, LI ，, Jing , Huang
{"title":"State Model Construction Method for Fast Steering Mirror and Its Control System Design","authors":"Zhiwei Ai, Jianbo Ji, LI ，, Jing , Huang","doi":"10.3724/sp.j.7100840884","DOIUrl":"https://doi.org/10.3724/sp.j.7100840884","url":null,"abstract":": To reduce structural parameters needed in the process of the state space modeling of a fast steering mirror (FSM), a modeling method based on system identification is proposed. Only two structural parameters, namely, coil resistance and inductance, are needed when using this modeling method. Based on the state model, a set of combined control systems consisting of a reduced-order observer, state feedback, an internal model, and a stabilization compensator were designed; the internal model and stabilization compensator were designed by using state feedback. Furthermore, current and angular velocity can be obtained using a reduced-order observer. The combined system can progressively track of input signals and suppress disturbances; the simulation model was built using SIMULINK. The simulation results show that, compared with the incomplete differential proportional integral derivative (PID) control system, the setting time decreases by 53.6% and the overshoot increases by 131.2% without considering the disturbance in the composite system. The dynamic and steady-state performance of the incomplete differential PID control system decreases significantly after adding the disturbance signal, while the composite system is maintained. The simulation results verify the correctness of the theoretical analysis.","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45866334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Infrared and Visible Image Fusion Algorithm Based on the Rolling Guidance Filter 基于滚动制导滤波器的红外与可见光图像融合算法
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7100840886
峰，李 敏，马 乐，邱晓华, Chen Feng, LI ，, Min , MA Le, Xiaohua Qiu
{"title":"Infrared and Visible Image Fusion Algorithm Based on the Rolling Guidance Filter","authors":"峰，李 敏，马 乐，邱晓华, Chen Feng, LI ，, Min , MA Le, Xiaohua Qiu","doi":"10.3724/sp.j.7100840886","DOIUrl":"https://doi.org/10.3724/sp.j.7100840886","url":null,"abstract":"： For the fusion of infrared and visible images, it is easy to produce problems such as missing detail information and suppressing less noise. In this paper, an improved fusion algorithm is proposed by applying the characteristics of a rolling guidance filter, which preserves edge and local brightness. First, the input images are decomposed into base and detail layers by mean filtering. Second, the saliency maps of the input images are obtained by combining the rolling guidance and Gaussian filters. The weight maps are then optimized by guided filters of different scales. The optimized maps are used to instruct the fusion of the base and detail layers. Finally, the fused image is reconstructed by combining the merged sub-images. The method of this paper is superior on the six indicators, such as nonlinear correlation information entropy and phase consistency, compared to the classical methods such as non-subsampled contourlet transform(NSCT), image fusion with guided filtering(GFF), and two-scale image fusion based on visual saliency(TSIFVS).","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43560216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Parameter Identification for Miniature Stabilized Platforms Based on Infrared Imaging 基于红外成像的小型稳定平台参数识别
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7100840883
Xuefeng Guo, Lin Yu
{"title":"Parameter Identification for Miniature Stabilized Platforms Based on Infrared Imaging","authors":"Xuefeng Guo, Lin Yu","doi":"10.3724/sp.j.7100840883","DOIUrl":"https://doi.org/10.3724/sp.j.7100840883","url":null,"abstract":"： This study focuses on parameter identification for miniature stabilized platforms based on infrared imaging and offers a linearization technique to reduce the nonlinear effect on modeling identification. During the identification process, a pseudorandom binary sequence is used as the modulated input signal to drive the system","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45905407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Objective Design of Visible Light/Low-Light and Infrared Parallel Optical Path Fusion 可见光/弱光与红外平行光路融合的目的设计
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7100840885
孙 爱平, 余 海红, 赵 德利, 李 泽民, 王 京云, 龚 杨云, 杨 绍明, 曾 邦泽
{"title":"Objective Design of Visible Light/Low-Light and Infrared Parallel Optical Path Fusion","authors":"孙 爱平, 余 海红, 赵 德利, 李 泽民, 王 京云, 龚 杨云, 杨 绍明, 曾 邦泽","doi":"10.3724/sp.j.7100840885","DOIUrl":"https://doi.org/10.3724/sp.j.7100840885","url":null,"abstract":"： Most of the published literature relating to parallel optical path fusion focuses on analysis and research of image fusion algorithms; little literature discusses the optical system for image fusion. This paper designs and analyzes a fusion optical system of visible light /low-light and a long wave infrared image fusion and parallel light path layout according to the characteristics of a hand-held fusion observation lens. Firstly, the advantages and disadvantages of a shared optical path optical layout pattern and parallel optical path optical layout pattern were introduced. The optical layout pattern of the parallel optical path was selected according to the characteristics of the handheld fusion observation lens. Secondly, according to the requirements of the hand-held fused observation lens, the “heat dissipation difference” and fixed-focus optical design of the visible light /low-light optical objective lens were determined and the internal focusing optical design was performed for the long-wave infrared objective lens. Thirdly, the image registration accuracy was analyzed from the three aspects of the optical layout, magnification, and distortion of the parallel light path, according to the design of the fused optical system. Finally, the fusion image of the actual scene of the handheld fusion observation lens was analyzed and judged; it was found that the fusion image quality is suitable and the fusion performance of the handheld fusion observation lens can meet the requirements.","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47107757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Research Progress in Photodetectors Based on Topological Insulators 基于拓扑绝缘体的光电探测器研究进展
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.1001-8891.2020.0101
唐 利斌, 张 玉平
{"title":"Research Progress in Photodetectors Based on Topological Insulators","authors":"唐 利斌, 张 玉平","doi":"10.3724/sp.j.1001-8891.2020.0101","DOIUrl":"https://doi.org/10.3724/sp.j.1001-8891.2020.0101","url":null,"abstract":"","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47998907","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Research Progress in Photodetectors Based on Topological Insulators 基于拓扑绝缘体的光电探测器研究进展
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7100840878
利斌 唐, 玉平 张
{"title":"Research Progress in Photodetectors Based on Topological Insulators","authors":"利斌 唐, 玉平 张","doi":"10.3724/sp.j.7100840878","DOIUrl":"https://doi.org/10.3724/sp.j.7100840878","url":null,"abstract":"","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49492737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
昆明物理研究所2020年全日制学术型研究生招生简章 Kunming Institute of Physics 2020 Full time Academic Graduate Enrollment Brochure
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7101791856
{"title":"昆明物理研究所2020年全日制学术型研究生招生简章","authors":"","doi":"10.3724/sp.j.7101791856","DOIUrl":"https://doi.org/10.3724/sp.j.7101791856","url":null,"abstract":"","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47007130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Design of Long-wave Athermal Optical System Based on Binary Diffraction Surface 基于二元衍射面的长波非热光学系统设计
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7100840882
华卫 张, 发平 张
{"title":"Design of Long-wave Athermal Optical System Based on Binary Diffraction Surface","authors":"华卫 张, 发平 张","doi":"10.3724/sp.j.7100840882","DOIUrl":"https://doi.org/10.3724/sp.j.7100840882","url":null,"abstract":"： Using only three lenses, an infrared system matching 640×512 uncooled vanadium oxide long-wave focal plane detector was designed. The system has a focal length of 100 mm, an F-number of 1.1, a total length of 107 mm, and a working band range of 8-12  m. A binary diffraction surface was introduced to realize the non-thermal temperature compensation function. The simulation design using Zemax shows that the modulation transfer function (MTF)value at the Nyquist frequency (30 lp/mm) of the system reached 0.49 in the temperature range of -40 ℃-+60 ℃ , which is close to the diffraction limit. The system has the characteristics of a long focal length, large relative aperture, good image quality in the full field of view, suitable temperature adaptation, high binary diffraction efficiency, easy processing, and compact structure.","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49573444","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
《红外技术》第八届编辑委员会名单 《红外技术》第八届编辑委员会名单
红外技术 Pub Date : 2020-01-01 DOI: 10.3724/sp.j.7100840881
{"title":"《红外技术》第八届编辑委员会名单","authors":"","doi":"10.3724/sp.j.7100840881","DOIUrl":"https://doi.org/10.3724/sp.j.7100840881","url":null,"abstract":"","PeriodicalId":64126,"journal":{"name":"红外技术","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47518138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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