withlight

  • HOME
  • KOREAN
  • bullet Lightings

    OPI-210   Optical Flicker Test System

    Calculate the highest percent flicker and flicker index by measuring average optical power of lamp


    • Technical Specifications
    • * Photo diode : silicone photodiode, effective section area :100mm2, Mismatching factor : f1’<1.5% Class L

      * Equipment Sampling Rate : 5 kHz

      * Calculate Flicker Index and Percent Flicker


       

    • Measurement algorithm
    • 소프트웨어화면.JPG

      a. Frequency: Detect frequency using fourier transform

      b. Percent flicker: 100 X ( A B ) / ( A + B )

      c. Flicker index : Area1 / ( Area1 + Area2 )

      그림1.jpg

      < Frequency ONE CYCLE detected by fourier transform>