SELF-CLEANING OPTICAL SENSOR Russian patent published in 2018 - IPC G01N21/64 

FIELD: physics.

SUBSTANCE: optical sensor comprises: a sensor head including the first and the second optical window, at least, one light source emitting light through the first optical window into the fluid flow and, at least, one detector detecting fluorescent emissions through the second optical window from the fluid flow; a flow chamber including a housing defining a cavity, into which a sensor head is inserted, an inlet port conveying the fluid flow beyond the cavity within the cavity, and an outlet port conveying the fluid flow from within the cavity back outside the cavity. The inlet port defines the first nozzle guiding a portion of the fluid flow to the first optical window and the second nozzle guiding a portion of the fluid flow to the second optical window. The method for determining a characteristic of fluid, in which fluid is guided through the first nozzle to the first optical window of the sensor head and through the second nozzle to the second optical window of the sensor head.

EFFECT: improving the accuracy of fluid characterization.

30 cl, 10 dwg