Static light scattering laser granulometer

Static light scattering laser granulometer

  • CN 2,581,978 Y
  • Filed: 09/10/2002
  • Issued: 10/22/2003
  • Est. Priority Date: 09/10/2002
  • Status: Active Grant
First Claim
Patent Images

1. static light scattering laser particle analyzer, its structure comprises laser instrument, plane mirror, beam expanding lens, fourier transform lens, photovoltaic cell arrays, the optics guide rail, the transparent sample window, ebullator and solenoid valve, the fourier transform lens focal length is 70-180mm, the aperture is 30-70mm, the transparent sample window places Fourier to change and changes converging on the light path between lens and the photovoltaic cell arrays, and can move along optical axis direction, it is characterized in that:

  • photovoltaic array is classified the silicon materials photodiode as, the photoelectric cell center pit is 30-80um, and the photoelectric cell innermost ring is 40-120um, becomes big from inside to outside gradually, the irregular ring spacing of width is 20-50um, and number of rings is between 30-50.

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