光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112810.0001B
邵俊峰 Shao Jun-feng, 施. S. Long
{"title":"Atmospheric Attenuation Analysis for Terrestrial FSO System","authors":"邵俊峰 Shao Jun-feng, 施. S. Long","doi":"10.3788/OMEI20112810.0001B","DOIUrl":"https://doi.org/10.3788/OMEI20112810.0001B","url":null,"abstract":"FSO system has the advantages of high bandwidth,high speed,high stability,immunity to external EMI source and better security property.Terrestrial FSO system is badly influenced by the atmospheric signal channel,so it is of great importance to research and conclude the property of the atmospheric channel.In this paper,the atmospheric composition and its attenuation property of the FSO system was discussed,after which the theoretical equations of the attenuation were given.Due to the pain in unavailability of the parameters of the theoretical equations in real time application,the experimental equations were also given which parameter was the visibility of the atmosphere.It could be used in real time to determine the system margin.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70574823","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112810.0071
杨国波 Yang Guo-bo, 谭伟伟 Tan Wei-wei, 赵. Z. Jun, 程. C. Shi, 石天雷 Shi Tian-lei
{"title":"Design of ODF Production Line","authors":"杨国波 Yang Guo-bo, 谭伟伟 Tan Wei-wei, 赵. Z. Jun, 程. C. Shi, 石天雷 Shi Tian-lei","doi":"10.3788/OMEI20112810.0071","DOIUrl":"https://doi.org/10.3788/OMEI20112810.0071","url":null,"abstract":"The key points of design an ODF production line were described in this paper.According to the required capacity and the equipment's cycle time,we calculated the number of process equipments.The requirements of spacer system,liquid crystal dropping system and vacuum align system were studied,according to the operating characteristics of process equipments,methods and other elements.We have designed the first domestic production line of multi-functional automatic ODF,and have gone into mass production successfully.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"71-75"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70574830","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112811.0089
Zhu Wan-bin
{"title":"Influnce of Filter on Measure Error of Displacement Sensor","authors":"Zhu Wan-bin","doi":"10.3788/OMEI20112811.0089","DOIUrl":"https://doi.org/10.3788/OMEI20112811.0089","url":null,"abstract":"In order to improve receiving system signal to noise ratio of the laser displacement sensor,people often place receiver filter in front of CCD or PSD.But the filter for receiving light refraction will cause measurement error,the error is non-linear,and can not be ignored by high-precision displacement sensor.We design a compensation method for this non-linear measure error.The experiments show that the method is feasible.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"89-91"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70575601","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112801.0033
王春雨 Wang Chun-yu, 麻忠文 Ma Zhong-wen, 李洋 Li Yang, 谭健 Tan Jian
{"title":"Study on Precise Control of PZT Ceramics of Rich Power Piezoelectric","authors":"王春雨 Wang Chun-yu, 麻忠文 Ma Zhong-wen, 李洋 Li Yang, 谭健 Tan Jian","doi":"10.3788/OMEI20112801.0033","DOIUrl":"https://doi.org/10.3788/OMEI20112801.0033","url":null,"abstract":"The basic principle,characteristics and driving means of the piezoelectric ceramic were discused in this paper,and the open loop measure method of piezoelectric ceramic's characteristics was designed.In the course of experiments,the stability of optical table should be further adjusted.The photoelectricity receiving amplifier was designed,and the piezoelectric charactoristics of piezoelectric ceramic were analysed in detail by confocal cavity interference version.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"33-35"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70571895","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}
{"title":"Design of Infrared Ear Thermometer based on MLX90615","authors":"魏计林 Wei Ji-lin, 吴海洋 Wu Hai-yang, 邱选兵 Qiu Xuan-bing","doi":"10.3788/OMEI20112806.0035","DOIUrl":"https://doi.org/10.3788/OMEI20112806.0035","url":null,"abstract":"The design of infrared ear thermometer based on medical digital infrared sensor MLX90615 was presented. According to infrared temperature measurement principle,the design mainly consisted of digital infrared sensor,low power consuption CPU unit,LCD display and other external circuit. The CPU unit read infrared ray siginal collected by MLX90615 through I2C bus,converted the digital signal to corresponding temperature of ear cavity and showed in LCD display. The experiment showed that the resolution and accuracy of the design reached 0.02 ℃ and 0.1 ℃,and achieved the goal to measure ear cavity accurately and rapidly.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"35-38"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573449","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112808.0001B
梅. M. Gui, 翟岩 Zhai Yan, 苗健宇 Miao Jian-yu
{"title":"Alignment of Off-axis Three-mirror Multispectral Camera","authors":"梅. M. Gui, 翟岩 Zhai Yan, 苗健宇 Miao Jian-yu","doi":"10.3788/OMEI20112808.0001B","DOIUrl":"https://doi.org/10.3788/OMEI20112808.0001B","url":null,"abstract":"The alignment of off-axis three-mirror system is difficult in the research and development of remote sensor.In this paper,an off-axis three-mirror multispectral camera was developed with the help of many instruments and computer aided alignment software.The final test results showed that the static MTF of each spectrum in library was more than 0.24(at Nyquist frequency),which could well meet the requirement.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70573841","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112809.0050
朱万彬 Zhu Wan-bin, 曹世豪 Cao Shi-hao
{"title":"Application of Confocal Chromatic Displacement Sensors to Measuring Thickness of Transparent Material","authors":"朱万彬 Zhu Wan-bin, 曹世豪 Cao Shi-hao","doi":"10.3788/OMEI20112809.0050","DOIUrl":"https://doi.org/10.3788/OMEI20112809.0050","url":null,"abstract":"The structure and principle of the spectral confocal displacement sensor were described in this paper,and the application to measuring the thickness was analyzed.The paper focused on the feasibility of measuring the parallel plates made of transparent materials.The measurement errors were also analyzed,and the corresponding compensation ways were given.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"50-53"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70574106","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112809.0059
Wang Di-nan
{"title":"Laser Modulation Techniques in FSO System","authors":"Wang Di-nan","doi":"10.3788/OMEI20112809.0059","DOIUrl":"https://doi.org/10.3788/OMEI20112809.0059","url":null,"abstract":"With the high speed development and driving of information technology,internet technology,laser and detector technology,FSOC system has shown its great potential in both military and commercial field as a communication method with high speed,high bandwidth,immunity to EMI and better security property.Light source and detectors are the key factors in improving data rate,communication distance and bit error rate performance in FSOC system.The choice of the light source and modulation methods used for the choice source were discussed in this paper.Comparison among the modulation methods in the aspect of average power consumption,average bandwidth requirement and packet error rate performance was also presented.","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":"70574794","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112811.0063
徐. X. Zhen
{"title":"Thermal Design and Thermal Analysis of Space Observation Equipment","authors":"徐. X. Zhen","doi":"10.3788/OMEI20112811.0063","DOIUrl":"https://doi.org/10.3788/OMEI20112811.0063","url":null,"abstract":"On the research of observation equipment,the method of heat conduction was chosen aiming at high-power electronic components based on the working environment and structure characteristics.The thermal design was finished on the research of heat conduction theory for the high-power electronic components.After the finite element model was built,the relations between the thickness and contact area of heat sink and the steady temperature of high-power electronic components were analyzed,and the design of heat sink was optimized.The experimental results showed that the equipment worked well in range of-30~50 ℃ environment,and the steady temperature was less than 85 ℃.Therefore,the equipment of thermal design can satisfy the temperature requirements in the space environment.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"63-67"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70575449","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}
光机电信息Pub Date : 2011-01-01DOI: 10.3788/OMEI20112804.0033
庄昕宇 Zhuang Xin-yu, 陈兆兵 Chen Zhao-bing
{"title":"Technology Analysis of Big Dimension Column Plane Carrying Airborne Pod","authors":"庄昕宇 Zhuang Xin-yu, 陈兆兵 Chen Zhao-bing","doi":"10.3788/OMEI20112804.0033","DOIUrl":"https://doi.org/10.3788/OMEI20112804.0033","url":null,"abstract":"The airborne pod is very important in military affairs area.The requests of many equipments and multifunction,which can't be solved by small ball airborne,can be solved by big dimension plane carrying airborne pod.The application and technology of the airborne pod equipments were analyzed and discussed on opto-electronic measure and opto-electronic countermine.The characteristics,application,technology level and development direction of big dimension plane carrying airborne pod were summarized.","PeriodicalId":68706,"journal":{"name":"光机电信息","volume":"28 1","pages":"33-38"},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70572779","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}
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