Welcome to Winner!
Global Site：简体中文
LASER PARTICLE SIZE ANALYZER FOR 30 YEARS
CHINA PARTICLE TESTING LEADING BRAND
SALES PHONE：0086-531-88876213
    SEARCH
    •  
    Your present location:Home >> Technology >> Technical Articles >> Optical Density

    Optical Density

    Writer:Jinan WinnerSource:Jinan Winner Number of visits: Date:2013-07-01
    Image
    Shading rate can be defined as the ratio of the particles in the beam cross-section to the total area of laser beam, represented as The percentage of particles scattering and absorbing account of the total light output, Thus, shading rate, also known as optical density.
     
    Specifically calculation:
    Difference between the probe center light intensity I0 after laser pass through the pure medium and the probe center light intensity li after adding samples, Divided by light intensity I0,  namely shading rate = (I0-Ii) / I0 x 100%,
    Winner Laser particle size analyzer with channels the best optical density is between 10%-15%.  
     
     
    Optical density is different from Particle Volume (mass) concentration, The former is referent to particle size, smaller particle size, bigger specific surface area, the stronger the light-shielding ability. 
     
     Therefore,  2 samples of the same volume concentration, the smaller particles show a greater optical density in the laser particle size instrument.

     

    Previous post:Jinan Winner Particle Instruments Joint Stock Co. Ltd.

    Next post:济南微纳颗粒仪器股份有限公司面向国内外厂家提供测试服务

    TypeInfo: Technical Articles

    Keywords for the information:Particle Optical Density  particle size analyzer 

    Messages
     
    Message:
    * Entered characters:0 Word
    Less than or equal500Character
    Your E-Mail:
    *
    example@mail.com
    Phone number:
     
    Please enter your Phone number
    Verification code:
    * Can't see clearly? Change an image