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Analysis of Equipmental Error Effect on Accuracy of the Optical Angle Measuring System Within the Field 设备误差对光学角度测量系统精度的影响分析
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112804.0056
李. L. Bo, 黄志立 Huang Zhi-li, 李. L. Qi, 江振 Jiang Zhen
{"title":"Analysis of Equipmental Error Effect on Accuracy of the Optical Angle Measuring System Within the Field","authors":"李. L. Bo, 黄志立 Huang Zhi-li, 李. L. Qi, 江振 Jiang Zhen","doi":"10.3788/OMEI20112804.0056","DOIUrl":"https://doi.org/10.3788/OMEI20112804.0056","url":null,"abstract":"Accuracy testing is an important test during the manufacturing of the optical angle measurement system.The testing facility's error affects the experiment result.In this paper,equipment errors are analyzed based on the principles of optical angle measuring system and accurate testing measurment.An error model is developed and the accureacy of optical angle measuring system is simulated with this model.Finally,the possibele methods of reducing testing equipment errors are proposed.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"56-60"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70572715","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
Calibration and R-T Characteristics of NTC Thermistor NTC热敏电阻的校正及R-T特性
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112807.0069
关奉伟 Guan Feng-wei, 刘巨 Liu Ju, 于善猛 Yu Shan-meng, 江. J. Fan, 杨近松 Yang Jin-song
{"title":"Calibration and R-T Characteristics of NTC Thermistor","authors":"关奉伟 Guan Feng-wei, 刘巨 Liu Ju, 于善猛 Yu Shan-meng, 江. J. Fan, 杨近松 Yang Jin-song","doi":"10.3788/OMEI20112807.0069","DOIUrl":"https://doi.org/10.3788/OMEI20112807.0069","url":null,"abstract":"The resistance of NTC thermistors is decrease with the increase of temperature,and they generally have nonlinear resistance(R)-temperature(T) behavior.In practice,such thermistor sensor needs to be individually calibrated over the operating temperature range to ascertain the R-T characteristics.The MF501 thermistor applied in spacecraft thermal test was illustrated in this paper to introduce a simple and effective calibration and data processing method.The fitting residual,average error and function transfer error were selected to assess the adequateness of the method.The result showed that the calibration error could be controlled within 0.45 ℃ based on three-point calibration over the operating temperature range and the precision was fully satisfied.Calibration precision could be improved with increasing the calculated calibration points.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"69-73"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573779","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: 2
Installation Methods of Lithography Projection Lens 光刻投影透镜的安装方法
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112808.0022
Qi Ke-qi
{"title":"Installation Methods of Lithography Projection Lens","authors":"Qi Ke-qi","doi":"10.3788/OMEI20112808.0022","DOIUrl":"https://doi.org/10.3788/OMEI20112808.0022","url":null,"abstract":"Different installation method of projection lens corresponds to different method of vibration isolation,different isolation method of lithography projection system affects transfer ability of the graphics.Two main installation methods of lithography projection lens were studied in this paper,and their characteristics were discussed.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"22-26"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573904","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
Implementation of Speech Recognition Algorithm in VC 语音识别算法在VC中的实现
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112804.0050
乔. Q. Bing, 吴庆林 Wu Qing-lin, 阴玉梅 Yin Yu-mei
{"title":"Implementation of Speech Recognition Algorithm in VC","authors":"乔. Q. Bing, 吴庆林 Wu Qing-lin, 阴玉梅 Yin Yu-mei","doi":"10.3788/OMEI20112804.0050","DOIUrl":"https://doi.org/10.3788/OMEI20112804.0050","url":null,"abstract":"With the continuous development of speech recognition algorithms,the recognition rate is increasing,and can be applied in practice gradually.In this paper,a speech recognition algorithm is implemented by VC++ and its recognition ability is tested.The results show that the algorithm has high recognition success rate,up to 95% in short term,and up to 90% in long term.The algorithm also has low recognition delay less than 50 ms,which can meet the application needs.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"50-55"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70572691","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: 2
Design of Multi-port Area CCD Imaging System based on FPGA 基于FPGA的多端口区域CCD成像系统设计
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112806.0039
武奕楠 Wu Yi-Nan, 吕增明 Lv Zeng-ming, 张. Z. Yu, 王文华 Wang Wen-hua, 李国宁 Li Guo-ning, 金龙旭 Jin Long-xu
{"title":"Design of Multi-port Area CCD Imaging System based on FPGA","authors":"武奕楠 Wu Yi-Nan, 吕增明 Lv Zeng-ming, 张. Z. Yu, 王文华 Wang Wen-hua, 李国宁 Li Guo-ning, 金龙旭 Jin Long-xu","doi":"10.3788/OMEI20112806.0039","DOIUrl":"https://doi.org/10.3788/OMEI20112806.0039","url":null,"abstract":"Using VCCD1024H made in Sarnoff as image sensor,a multi-port area CCD imaging system based on FPGA was designed. VCCD1024H working principle,the whole structure of imaging system,driving circuit,working mode and design of FPGA timing logic were particularly introduced. Then,the imaging timing sequence and the storage of multi-port data were mainly discussed. The logic design of FPGA could meet the demand of imaging and data transmission through simulation and verification. The imaging system will establish reliable foundation for the future application.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"39-43"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573006","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
Simulative Proposal of High-power White LED for Street Lamp Lighting System 大功率白光LED路灯照明系统仿真方案
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112806.0044
Liu Xi
{"title":"Simulative Proposal of High-power White LED for Street Lamp Lighting System","authors":"Liu Xi","doi":"10.3788/OMEI20112806.0044","DOIUrl":"https://doi.org/10.3788/OMEI20112806.0044","url":null,"abstract":"Using high-power white LEDs as light source,a design proposal of simulative model of street lamp lighting system satisfying specific illumination and power demand was introduced,with the help of the optical software named \"Trace Pro\". The feasibility of the proposal was validated through an experiment. The simalative proposal can provide guiding significance for actual development.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"44-47"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573180","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
Methods of Vignette Elimination in Reflecting-mirror-jointed Camera 反光镜连接相机小波消除方法
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112806.0023
张. Z. Yu, 韩双丽 Han Shuang-li, 张. Z. Ke, 武奕楠 Wu Yi-Nan, 金龙旭 Jin Long-xu, 于浩 Yu Hao
{"title":"Methods of Vignette Elimination in Reflecting-mirror-jointed Camera","authors":"张. Z. Yu, 韩双丽 Han Shuang-li, 张. Z. Ke, 武奕楠 Wu Yi-Nan, 金龙旭 Jin Long-xu, 于浩 Yu Hao","doi":"10.3788/OMEI20112806.0023","DOIUrl":"https://doi.org/10.3788/OMEI20112806.0023","url":null,"abstract":"In order to solve the vignette phenomenon in the central visual field of the reflecting-mirror-jointed camera,the reasons of the vignette phenomenon were analyzed,and the vignette energy distribution mathematics model was obtained. The vignette energy distribution curve was got using the mathematics model with MATLAB. At the same time,considering the veiling glare of the joint reflecting mirrors and the CCD responding heterogeneity,the radicalization calibration experiment for the CCD camera was carried out. The vignette area was shown by the mathematics model,with function approach law to draft the compensation factor curve of each point in the vignette area,reaching the relation of the compensation factor and the brightness value. Handling the radicalization calibration image and the outfield image,the vignette phenomenon was solved very well.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"23-29"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573225","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
Dynamic Experiment of Large Space Remote Sensor 大型空间遥感器动态实验
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112807.0059
刘忠臣 Liu Zhong-chen, 朱延江 Zhu Yan-jiang
{"title":"Dynamic Experiment of Large Space Remote Sensor","authors":"刘忠臣 Liu Zhong-chen, 朱延江 Zhu Yan-jiang","doi":"10.3788/OMEI20112807.0059","DOIUrl":"https://doi.org/10.3788/OMEI20112807.0059","url":null,"abstract":"Large space remote sensor's structure is very complex,and it's weight is heavy.In development process,the design of fixture is a difficult work.The fixture is a force transmission component in vibration tests,which connecting the shaking table and the remote sensor directly.Its performance will affect the reliability of the vibration test.The development of the fixture and the vibration test process was discussed in this paper.Sine vibration and random vibration results showed that the input from the fixture consistent with shaking table.Test results indicated that the fixture did not amplify and shrink the input conditions obviously,which verified the effectiveness of vibration test.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"59-63"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573580","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
Study on Quantum Well Infrared Photo-detector based on Temperature Change 基于温度变化的量子阱红外探测器研究
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112802.0017
王忠斌 Wang Zhong-Bin, 温廷敦 Wen Tingdun, 许丽萍 Xu Li-Ping, 张家鑫 Zhang Jia-Xin
{"title":"Study on Quantum Well Infrared Photo-detector based on Temperature Change","authors":"王忠斌 Wang Zhong-Bin, 温廷敦 Wen Tingdun, 许丽萍 Xu Li-Ping, 张家鑫 Zhang Jia-Xin","doi":"10.3788/OMEI20112802.0017","DOIUrl":"https://doi.org/10.3788/OMEI20112802.0017","url":null,"abstract":"Quantum well infrared photo-detector was influenced by many factors such as temperature,pressure and so on.This paper makes a study on the influence of temperature mainly.Based on the paper [2],we derive the realitionship between the thermal strain and temperature in superlattice.Then combining energy level formula of quantum well infrared photo-detector with the relational expression of wavelength and energy level difference,we do quantitative analysis about the influence on detect peak wavelength of quantum well infrared photo-detector from tempereature.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"17-19"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70572143","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
Development of Multi-point Digital Forming Technology for Freeform Surface 自由曲面多点数字成形技术的发展
光机电信息 Pub Date : 2011-01-01 DOI: 10.3788/OMEI20112805.0006
龚学鹏 Gong Xue-peng, 彭忠琦 Peng Zhong-qi
{"title":"Development of Multi-point Digital Forming Technology for Freeform Surface","authors":"龚学鹏 Gong Xue-peng, 彭忠琦 Peng Zhong-qi","doi":"10.3788/OMEI20112805.0006","DOIUrl":"https://doi.org/10.3788/OMEI20112805.0006","url":null,"abstract":"Basic principle of multi-point forming technology was introduced.Research situation of multi-point forming in Japan,USA and South Korea was described.Researchers in Japan developed several multi-point forming experimental equipments in 1959-1980,but 3-D surface forming question was not solved.Researchers in USA developed multi-point stretching equipment in 1999.Researchers in South Korea developed multi-point elastic forming equipment in 1990s.Research situation which including forming theory,forming equipment and forming process was described.Development trend of multi-point forming was pointed out,large-scale forming,precision forming and continuous forming being the important development direction.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"6-11"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70572769","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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