• Infrared and Laser Engineering
  • Vol. 49, Issue 4, 0403005 (2020)
Huimin Chen, Chao Ma, Bin Qi, Pengyu Guo, Shangxian Yang, Lijuan Gao, and Jian Huo
Author Affiliations
  • Science and Technology on Electromechanical Dynamic Control Laboratory, Beijing Institute of Technology, Beijing 100081, China
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    DOI: 10.3788/IRLA202049.0403005 Cite this Article
    Huimin Chen, Chao Ma, Bin Qi, Pengyu Guo, Shangxian Yang, Lijuan Gao, Jian Huo. Study on backscattering characteristics of pulsed laser fuze in smoke[J]. Infrared and Laser Engineering, 2020, 49(4): 0403005 Copy Citation Text show less
    Particle size distribution of smoke particles
    Fig. 1. Particle size distribution of smoke particles
    Efficiency factor curves of smoke particles at the wavelength of 905 nm
    Fig. 2. Efficiency factor curves of smoke particles at the wavelength of 905 nm
    Flowchart of simulation
    Fig. 3. Flowchart of simulation
    Schematic diagram of experimental system
    Fig. 4. Schematic diagram of experimental system
    Set up the experimental system
    Fig. 5. Set up the experimental system
    Comparison diagrams of simulation and test
    Fig. 6. Comparison diagrams of simulation and test
    Pulse laser echo intensity at different length of pipes
    Fig. 7. Pulse laser echo intensity at different length of pipes
    Comparison diagrams of simulation and test
    Fig. 8. Comparison diagrams of simulation and test
    ParametersValue
    Laser fuzeWavelength/nm905
    Pulse width/nm50
    Beam divergence/rad0.005
    Receiving optical lens diameter/mm50
    Emission-receiving distance/mm35
    Receiving field angle/rad0.2
    SmokeDensity/g·cm−31.096
    Complex index of refraction1.750-0.430i
    Particle size/μm3-26
    Parameters of testsConcentration of smoke/ g·m−33、7、10.5、14、18、21、24、28
    Length of pipe/m0.3、0.5、0.8、1.0
    Distance of fuze and smoke/m0.5、1.0、1.5、2.0、2.5、3.0
    Table 1. Settings in simulation
    Huimin Chen, Chao Ma, Bin Qi, Pengyu Guo, Shangxian Yang, Lijuan Gao, Jian Huo. Study on backscattering characteristics of pulsed laser fuze in smoke[J]. Infrared and Laser Engineering, 2020, 49(4): 0403005
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