**4. Conclusion**

404 Atmospheric Aerosols – Regional Characteristics – Chemistry and Physics

Arbitrary unit


0.0

0.5

Polarization

1.0

 left right

0 30 60 90 120 150 180

**Figure 8.** Photo of fiber micro-particle by CCD and respective scattering and polarization

Observation angle

up down

*p*11

*i*11

photometric characteristics are much less dependent on particle shape.

P11 and P22, since up aperture and aerosol particle inlet with a same positions, similarly to bottom aperture and aerosol particle outlet, too. i11 and P11are more close to calculation than i22 and P22, which might be caused by different outline of fibre cotton particles. Clearly, the difference between cotton fibre in image A and infinitely long cylinder is smaller than that between image B and infinitely long cylinder. The experiment is cursory in describing trendy of scattering intensity and polarization restricted by the number of optical fibre for collecting scattering light; on the one hand, the angle increments between apertures for optical fibre are limited in manufacturing process; on the other hand, the cone angle of receiving plane for every optical fibre is 3o, unlike the elements of calculation, the integral

0 30 60 90 120 150 180

Observation angle

up down

 left right


**A B**

0.0

Polarization

0.5

*p*22

*i*22

1.0

Arbitrary unit

An experimental apparatus has been built to measure the images and light scattering characteristics of aerosol particles simultaneously. The core portion of the analyzer is a homocentric hollow black chamber. Images, corresponding scattering intensity and polarization of fiber cottons are received. Wave theory for infinitely long cylinder has been compiled with LabVIEW. By comparison of experimental data and calculation, the affecting factors to results are pointed out, which provides a good foundation to further study.
