SYSTEM TO MEASURE HYDROLOGICAL PARAMETERS AT LARGE DEPTHS Russian patent published in 2015 - IPC G01W1/04 

FIELD: instrumentation.

SUBSTANCE: system includes a detachable oceanographic probe comprising a nose part made heavier and a tail part. The tail part comprises facilities for stabilisation of probe position during motion, ballast with a hydrochemical breaker, and also a coil with a cable. Besides, the cable has an outlet via a hole in the tail part. In the nose part there is a reference temperature and pressure meter, a source of power supply, electronic means of conversion and synchronisation of measured signals, a hydroacoustic antenna. The reference temperature and pressure meter is made in the form of a laser fluorometer, the additional function of which is salinity measurement. The laser fluorometer includes a pulse nitrogen laser. At the outlet of the laser fluorometer in front of the inlet slot of the double scanning device there is an interferential filter in the form of a quartz cuvette. The specified electronic means of conversion and synchronisation of measurement signals comprise a functional logical unit for generation and autocompensation of a refraction index by each two of three measured hydrophysical parameters.

EFFECT: increased validity of measurement results.