Laser-based sensor for measuring drifting-snow parameters

Arun Kumar Gupta; Vinod Kumar; Punit Vashisth; Om Prakash Nijhawan

doi:10.1117/12.368493

4 November 1999 Laser-based sensor for measuring drifting-snow parameters

Arun Kumar Gupta, Vinod Kumar, Punit Vashisth, Om Prakash Nijhawan

Proceedings Volume 3898, Photonic Systems and Applications in Defense and Manufacturing; (1999) https://doi.org/10.1117/12.368493
Event: International Symposium on Photonics and Applications, 1999, Singapore, Singapore

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.

Citation Download Citation

Arun Kumar Gupta, Vinod Kumar, Punit Vashisth, and Om Prakash Nijhawan "Laser-based sensor for measuring drifting-snow parameters", Proc. SPIE 3898, Photonic Systems and Applications in Defense and Manufacturing, (4 November 1999); https://doi.org/10.1117/12.368493

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