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Proceedings Paper

Laser-based sensor for measuring drifting-snow parameters
Author(s): Arun Kumar Gupta; Vinod Kumar; Punit Vashisth; Om Prakash Nijhawan
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Paper Abstract

The present paper discusses the design and development of diode laser based sensor, which measures the snow particle size,the number of drifting snow particles passing per unit time through sampling volume and the speed of drifting snow particle. These factors, in turn determine the mass flux of drifting snow over the range of wind speeds. The design of sensor is based on interruption of the laser beam as the snow particle traverse through it. The extinction is detected by a suitable bi-element Pin photo detector. The sensor is designed for measuring snow particle size in the range of 100 micrometers to 2000 micrometers diameter and can count up to 100,000 particles per minute. The sensor is capable of measuring particle speed up to 50 meters per second. The sampling volume of sensor is selected in such a way that a single particle crosses the sampling volume at a time.

Paper Details

Date Published: 4 November 1999
PDF: 6 pages
Proc. SPIE 3898, Photonic Systems and Applications in Defense and Manufacturing, (4 November 1999); doi: 10.1117/12.368493
Show Author Affiliations
Arun Kumar Gupta, Instruments Research & Development Establishment (India)
Vinod Kumar, Instruments Research & Development Establishment (India)
Punit Vashisth, Instruments Research & Development Establishment (India)
Om Prakash Nijhawan, Instruments Research & Development Establishment (India)

Published in SPIE Proceedings Vol. 3898:
Photonic Systems and Applications in Defense and Manufacturing
Yee Loy Lam; Koji Ikuta; Metin S. Mangir, Editor(s)

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