The Jayaparkash Narayan Internation Airport, Patna would be soon equipped with Dristhi, An indigenous transmissometer (Runway - visibility instrument), to help pilots land and take off safely in poor visibility condition.
DRISHTI, is the only indigenously developed transmissometer, which helps in determining runway visibility range at airports.
Requirement of this instrument, The assessment of visibility at Patna airport is done using human eyes and a detailed scientific map is drawn up using Global Positioning System(GIS). This practice is unsafe and international agencies like International Civil Aviation Organisation and world Meteorological Organisation insist on the use of transmissometer for this purpose.
Drishti, is the only indigenously built transmissometer of its kind. Its cost is just one-third of imported transmissometers and is considered more accurate.
Features:-
- Capable of handling both low (25m) and high (2000m) visibility accurately.
- Remote access and control provided.
- Web- enabled data accessibility system.
How Works:-
- Drishti is suitable for installation in all categories of Airports-- CAT I, CAT II, CAT III A and CAT III B.
- It comprises a transmitter that sends collimated beam of light and a receiver that is set up at a distance to collect the transmitted beam.
- The instrument is set up parallel to airport runway.
- A detector collects the transmitted light beam and measures the attenuation of light intensely while traversing through the atmosphere.
- It works on the principle of higher the attenuation factor lower is the visibility of the runway.
- Data from field site is transmitted to ATC room through cable and Wi- Fi.
Source =>> The Telegraph
One machine can do the work of fifty ordinary men. No machine can do the work of one extraordinary man. MUSKAN
--MNJ Corp..
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