Raindrop Detection Method using Light Scattering 


Vol. 34,  No. 2, pp. 48-52, Feb.  2009


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  Abstract

In this paper, we propose an efficient way of monitoring the amount of raindrop or mist by detecting the scattered light from the water particle of rain or mist. A conventional raindrop monitoring method such as directly detecting reflected light by raindrop or transmitted light through optical waveguide required the complex geometrical optics to collimate or focus the light beam. And it sensed only when raindrop is in contact with glass surface, while it had inherent high sensitivity because most light power from source was delivered to the photo-detector. The proposed raindrop detection method utilizing light scattering was insensitive to ambient light by adapting modulation using high frequency, and it compensated SNR by driving light source with high current using time division scheme. The fabricated, raindrop detection system using light scattering scheme showed particularly advantageous in detection of raindrop or mist even before those contact with glass surface.

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  Cite this article

[IEEE Style]

K. N. Choi, "Raindrop Detection Method using Light Scattering," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 2, pp. 48-52, 2009. DOI: .

[ACM Style]

Kyoo Nam Choi. 2009. Raindrop Detection Method using Light Scattering. The Journal of Korean Institute of Communications and Information Sciences, 34, 2, (2009), 48-52. DOI: .

[KICS Style]

Kyoo Nam Choi, "Raindrop Detection Method using Light Scattering," The Journal of Korean Institute of Communications and Information Sciences, vol. 34, no. 2, pp. 48-52, 2. 2009.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880