Drishti for Fog Monitoring
Published: Jul 30, 2016
Photo courtesy: Drishti
Drishti-transmissiometer, seen above at the Lucknow airport, is a visibility measuring system developed indigenously by CSIR-NAL. The system is conceived from concept to product with international class I certification. The Drishti system at a field site consists of a transmitter and receiver separated by a characteristic distance called baseline to meet all categories of airport requirements for runway visual range (RVR). The transmitter sends a collimated beam of light which is received by an optical detector in the receiver separated by 30m.
Abstract: Reduced winter visibility due to fog can be a major deterrent to transport operations. The indigenously developed Drishti-transmissometers installed at Indian airports have successfully managed to overcome this challenge.
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