At the Fourth international specialized exhibition “AVIA-2004” LOMO PLC devices, entered into the complex of airfield equipment (Russian abbreviation is KAO), were awarded with diploma and medal “For designing and mastering in production of modern opto-electronic meteosensors”.

   Exhibition “Avia-2004” passed in Moscow in February, from 24 till 27. LOMO PLC represented two devices there – clouds altitude laser sensor DOL-1 and meteorological distance of visibility determiner FI-3.

   DOL is a complicated optical and electronical device. The heart of the product is a solid-state laser with diodes pumping. Clouds altitude laser sensor allows with the high precision and reliability defining the height of low edge of clouds – both the first and the second stratum – in the range from 10 till 3000 m with allowed error plus-minus 10 meters. The complication of work is in the following: it's impossible to get precise reflection from clouds like from the firm surface.  That's why specialists of LOMO were forced to solve the whole complex of complicated scientific and engineering tasks during creation of the instrument. DOL also can measure the density of clouds and automatically produce statistic processing of the measuring results, what is significantly simplifies the work of meteorologist. And neither rain no snow can be the obstacle to this device.

   FI-3 is intended for measuring of meteorological distance of visibility at landing ground. This device distinguishes from its predecessor FI-2 by significantly more perfect dimensional, weight and technical specifications and improved ergonomics. Thanks to usage of advanced electronic base the exploitation of the product has considerably simplified, and precision of measurements has risen. FI-3 consists of two blocks - photometrical and reflective. The first of them sends its light impulse, which is reflected by the second block and later the impulse comes back to photometrical block. Measurement of the degree of weakening of the impulse after passing through the stratum of atmosphere allows getting necessary data. Impulse photometers of LOMO are high precision sophisticated devices. They have to work continuously round-the-clock in the range of temperatures from -50 till  50 degrees. Radiated light stream saves stability and doesn’t depend on humidity, pressure, sudden voltage changes and other interference.

   DOL-1 and FI-3 made a good impression on potential customers. At present time the both devices – DOL-1 and FI-3 passed through the whole cycle of necessary tests and got corresponding documents and certificates. FI-3 from the beginning of 2004 is produced regularly; DOL-1is being prepared to the production.