Nosov V.N., Volodin V.D., Ivanov S.G.
A description of the set-up of a new compact optoelectronic device designed for remote registration of sea wave characteristics from the ship’s board is given. The device registers laser radiation reflected from the sea surface in the form of a “fan” using a CCD arrays. The device uses the Oclaro HL63193 laser diode, which operates in continuous mode in the region of 634–637 nm wavelengths with an output power of up to 500 mW. The area illuminated by the laser on the sea surface is a band 3–5 mm wide and 2–3 m long (when placing the device on a ship at an altitude of 6–9 m above sea level). The receiving unit of the device is based on the OP‐55AR film projection lens and the Sony ILX554A CCD arrays. The device has been tested in laboratory and marine conditions. It is shown that the speed of scanning the sea surface can be significantly higher (up to 833 Hz) than in previously created models with a narrow beam when using mechanical mirror scanning (7–15 Hz). This makes it possible to increase the speed of data accumulation and thereby reduce the dispersion of the values measured over a given time, which in turn makes it possible to register weaker impacts of hydrodynamic processes on the sea surface. At the same time, the weight of the layout was reduced to 5 kg instead of 35 kg (for a layout with a narrow beam and a mechanical scanner).
