Fraunhofer diffraction Fraunhofer diffraction technique using Fraunhofer diffraction effects arising from the droplets to get somewhere in a certain particle size of the spray volume as a percentage of the volume of all the particles and other information . With Phase Doppler technology, Fraunhofer diffraction technology can only spray a small area of the field particle size measurement. That is, compared with the overall scale of the spray , both of which can give fog test techniques in the field of particle measurement results of a point , but can not give information on the particle size distribution of the audience .

( 3 ) Laser Induced Fluorescence (LIF) laser-induced fluorescence spectroscopy LIF (Laser Induced Fluorescence) is an effective means of measuring the concentration distribution of the spray . Application of a sheet of laser irradiation LIF , or rely on fuel in the fuel itself is added to the laser measuring fluorescence fluorescent agent , can be observed , the fuel concentration distribution , the configuration of the high-resolution CCD camera can also observe the motion of the droplet and particle distribution . China Tianjin University research undertaken in this area earlier , but also achieved remarkable results.

( 4 ) Thompson et al holographic technology using laser holographic technology was first successfully used to study aerosol measuring large field near the sea . British JCDent focuses on the possibility of laser interferometry technique in the measurement of the fuel spray . Advantages of laser holography is sprayed can be obtained while the particle size distribution of the audience , the image three-dimensional image is obtained , which can effectively identify the characteristics of a droplet of non- circular , thereby obtaining high analytical accuracy. Many domestic research institutions to carry out work in this area , mainly used to measure the concentration field and temperature field , achieved a lot . Off-axis holography applications in the field of industrial diesel spray nozzle is more extensive . For particle field coaxial and off-axis holographic recording , it requires no scattering of not less than 50% -80 % of the incident light energy through the fog light energy field , otherwise it will not be good holographic recording . Depth of field , one question remains puzzled problem holography . In addition , there are some applications earlier laser testing techniques , such as Rayleigh scattering , laser shadow method, Schlieren photography method , are still often used in experimental studies of industrial spray nozzle nozzle nozzle nozzle nozzle nozzle Dongguan industrial metal spiral nozzle nozzle fan nozzle cone nozzle atomizer nozzles hair clip stainless steel nozzle nozzle nozzle nozzle manufacturers wholesale

Fraunhofer diffraction Fraunhofer diffraction technique using Fraunhofer diffraction effects arising from the droplets to get somewhere in a certain particle size of the spray volume as a percentage of the volume of all the particles and other information . With Phase Doppler technology, Fraunhofer diffraction technology can only spray a small area of the field particle size measurement. That is, compared with the overall scale of the spray , both of which can give fog test techniques in the field of particle measurement results of a point , but can not give information on the particle size distribution of the audience .

( 3 ) Laser Induced Fluorescence (LIF) laser-induced fluorescence spectroscopy LIF (Laser Induced Fluorescence) is an effective means of measuring the concentration distribution of the spray . Application of a sheet of laser irradiation LIF , or rely on fuel in the fuel itself is added to the laser measuring fluorescence fluorescent agent , can be observed , the fuel concentration distribution , the configuration of the high-resolution CCD camera can also observe the motion of the droplet and particle distribution . China Tianjin University research undertaken in this area earlier , but also achieved remarkable results.

( 4 ) Thompson et al holographic technology using laser holographic technology was first successfully used to study aerosol measuring large field near the sea . British JCDent focuses on the possibility of laser interferometry technique in the measurement of the fuel spray . Advantages of laser holography is sprayed can be obtained while the particle size distribution of the audience , the image three-dimensional image is obtained , which can effectively identify the characteristics of a droplet of non- circular , thereby obtaining high analytical accuracy. Many domestic research institutions to carry out work in this area , mainly used to measure the concentration field and temperature field , achieved a lot . Off-axis holography applications in the field of industrial diesel spray nozzle is more extensive . For particle field coaxial and off-axis holographic recording , it requires no scattering of not less than 50% -80 % of the incident light energy through the fog light energy field , otherwise it will not be good holographic recording . Depth of field , one question remains puzzled problem holography . In addition , there are some applications earlier laser testing techniques , such as Rayleigh scattering , laser shadow method, Schlieren photography method , are still often used in experimental studies of industrial spray nozzle nozzle nozzle nozzle nozzle nozzle Dongguan industrial metal spiral nozzle nozzle fan nozzle cone nozzle atomizer nozzles hair clip stainless steel nozzle nozzle nozzle nozzle manufacturers wholesale