SEA WATER TRANSPARENCY METER Russian patent published in 2008 - IPC G01N21/59 

FIELD: instrument making.

SUBSTANCE: invention relates to ocean water property researches in natural conditions. The proposed transparency meter comprises a container with view port and a reflecting prism arranged opposite to the aforesaid view port, a radiator, a photo receiver, a collimator, a beam splitter, lens, a beam modulator, a sync system, a reference and measuring circuits. The reference circuit is arranged inside the instrument. Note here that measuring channel optical circuit passes through a semi-transparent mirror, collimator and reflecting prism, while that of the reference channel is arranged perpendicular to the former and passes through semi-transparent mirror and spherical mirror center separated by the modulator cylindrical surface, the modulator axle being linked up with the engine furnished with an encoder which allows using the transparency meter in-situ. Note also that the proposed instrument incorporates temperature, vacuum and external pressure transducers connected to analogue-digital converter with its input connected to the photo receiver and its output connected to the controller, in its turn, connected to the memory unit, outer communication interface and modulator control unit connected to encoder and radiator.

EFFECT: proposed meter allows analysing ocean water properties in-situ.

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