TRANSPARENT SEA WATER GAUGE Russian patent published in 2024 - IPC G01J3/42 

FIELD: measuring technology.

SUBSTANCE: invention is intended for measuring the attenuation of directional light (transparency) in sea water in situ. The transparent meter contains a sealed container with two identical porthole lenses in the form of identical plano-convex lenses of given sizes, which contains: a radiation source in the form of a multicolor LED; limiting diaphragm; a beam splitter in the form of a thin transparent partially reflective plate with a high refractive index; radiation beam interrupter in the form of a controlled rotary curtain in the shape of a sector of a thin-walled cylinder; radiation receiver; radiation receiver diaphragm. The reference and measuring channels are brought out into the medium under study and contain two identical reflective triple prisms installed opposite the corresponding porthole lenses at specified distances from them. The triple prism of the reference channel is installed at the closest possible distance from the porthole lens of this channel. The triple prism of the measuring channel is installed with the ability to move relative to the porthole lens of this channel - to ensure a change in the length of the optical base of the measuring channel in a given wide range, and with the possibility of fixing it at a given length of the optical base of the measuring channel.

EFFECT: increasing in the accuracy of measurements of the attenuation index of directional light in absolute values; increasing the scope of use of the device.

5 cl, 2 dwg