Measurement for smoke efficiency to small scene imaging with laser implements array

Lu Bin; Lv Junwei

The laser beam is the most precise and popular instrument to measure the smoke permeate rate. But in most field testing cases, the scene of laser beam light is too small for the smoke field testing and the synchronization problem is also unavoidable when it works at scanning way. In order to insure the measurement precision for the disturbance effect of smoke to the small scene imaging, it introduces the design of lasers array with multi small power same semiconductor laser after beam homogeneous enlarge shaping. The relative variety rate of room permeating rate can be measured by the imaging sensor. It can measure 2.8 m2.8 m smoke at 113.4 m distance with 33 beam homogenous enlarge shaping laser array during the principle test. The scene of CCD is 1010and the error of relative variety rate is less than 0.5% when grey level is no more than 230.

1. Control Engineering Department of Navy Aeronautical and Astronautical University,Yantai 264001,China

Received Date: 2012-09-17

Rev Recd Date: 2012-10-15

Publish Date: 2013-05-25

Key words:

Abstract: The laser beam is the most precise and popular instrument to measure the smoke permeate rate. But in most field testing cases, the scene of laser beam light is too small for the smoke field testing and the synchronization problem is also unavoidable when it works at scanning way. In order to insure the measurement precision for the disturbance effect of smoke to the small scene imaging, it introduces the design of lasers array with multi small power same semiconductor laser after beam homogeneous enlarge shaping. The relative variety rate of room permeating rate can be measured by the imaging sensor. It can measure 2.8 m2.8 m smoke at 113.4 m distance with 33 beam homogenous enlarge shaping laser array during the principle test. The scene of CCD is 1010and the error of relative variety rate is less than 0.5% when grey level is no more than 230.

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Reference (25)

[1]	Yao Lujiu, Gao Junlin. Theory and Testing Technique of Smoke[M]. Beijing: National Defense Industry Press, 2009. (in Chinese)姚禄玖, 高钧麟. 烟幕理论与测试技术[M]. 北京: 国防工业出版社, 2004.
[2]
[3]
[4]	Shen Tao, Song Jianshe. Study on multi-channel measurement of transmissivity of smoke[J]. Electronics Optics Control, 2007(5): 124-126. (in Chinese)沈涛. 动态烟幕透过率测试方法研究[J]. 电光与控制, 2007(5): 124-126.
[5]	Lin Yong, Hu Jiasheng. Laser beam shaping techniques[J]. Laser Journal, 2008, 6: 1-4. (in Chinese)林勇, 胡家升. 激光光束的整形技术[J]. 激光杂志, 2008, 6: 1-4.
[6]
[7]
[8]	Li Yiyu, Wang Wei, Chen Jiaojie, et al. Beam shaping and homogenization system with lens array for ophthalmic excimer laser refractive surgery[J]. Laser and Optoelectronics Progress, 2011, 081403: 1-4. (in Chinese)厉以宇, 王伟, 陈娇洁, 等. 基于透镜阵列的眼科准分子激光光束整形与匀光系统[J]. 激光与光电子学进展, 2011, 081403: 1-4.
[9]
[10]	Du Guojun, Chen Tao. Lens array homogenizer for excimer lasers[J]. Journal of OptoelectronicsLaser, 2005, 16(3): 279-281. (in Chinese)杜国军, 陈涛. 应用于准分子激光的透镜阵列均束器[J]. 光电子激光, 2005, 16(3): 279-281.
[11]
[12]	Yi Hengyu, Su Yi. Modeling and experimental validating on array combination of rectangle laser beams[J]. Infrared and Laser Engineering, 2011, 40(3): 472-475. (in Chinese)易亨瑜, 苏毅. 矩形光束合成的建模与实验验证[J]. 红外与激光工程, 2011, 40(3): 472-475.
[13]	Yang Pengling, Feng Guobin. Mid-infrared high energy laser beam detector array[J]. Chinese Journal of Lasers, 2011, 7: 070200821-070200826. (in Chinese)杨鹏翎, 冯国斌. 中红外激光光斑探测阵列[J]. 中国激光, 2011, 7: 070200821-070200826.
[14]
[15]
[16]	Li Haiyai. Research for the efficacy of laser to IR imaging guiding system[D]. Changsha: Defense Science and Technique University, 2005. (in Chinese)李海燕. 激光对红外成像制导系统干扰效能研究[D]. 长沙: 国防科学技术大学, 2005.
[17]	Jiang Sanping, Hao Xiaojian. Vertical coordinates measurement based on laser screen and photodiode arrays[J]. Journal of Ballistics, 2011, 3: 89-92. (in Chinese)姜三平, 郝晓剑. 基于激光光幕和光电二极管阵列的立靶坐标测量[J]. 弹道学报, 2011, 3: 89-92.
[18]
[19]	Chen Qiuling, Xu Wenhai. Test of beam homogeneity of plane-array laser's output light pane[J]. Jouranl of Dalian Maritime University, 2007, 33: 44-46. (in Chinese)陈秋玲, 许文海. 半导体激光器阵列发光面光束均匀度的特性测试[J]. 大连海事大学学报, 2007, 33: 44-46.
[20]
[21]	Zhao Baoyin, Duan Kaiqiong. Research of the testing for the 22 laser beam array synthesize[J]. Infrared and Laser Engineering, 2012, 41(1): 58-62. (in Chinese)赵保银, 段开椋. 22全光纤激光器阵列部分相干合成的实验研究[J]. 红外与激光工程, 2012, 41(1): 58-62.
[22]
[23]
[24]	Fan Zengming, Li Zuo, Laser beam shaping system of non-spherical surface lens[J]. Infrared and Laser Engineering, 2012, 41(2): 353-357. (in Chinese)范增明, 李卓. 非球面透镜组激光光束整形系统[J]. 红外与激光工程, 2012, 41(2): 353-357.
[25]	Liu Xiangcui, Cheng Xiang. Shield ration measurement of smoke to the IR thermometer[J]. Infrared and Laser Engineering, 2012, 41(1): 37-42. (in Chinese)刘香翠, 程翔. 烟幕对红外热像仪遮蔽效果的定量表征[J].红外与激光工程, 2012, 41(1): 37-42. (in Chinese)

Measurement for smoke efficiency to small scene imaging with laser implements array

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