METHOD FOR MONITORING STATE OF LIQUID FLOWING MEDIUM Russian patent published in 2021 - IPC G01N33/00 

FIELD: medical technology.

SUBSTANCE: invention relates to medical technology, and in particular to methods and devices for determining the state of a poorly transparent flowing medium in express mode in the presence of large inclusions and undissolved particles, gas bubbles with their constant mixing. The maximum intensity of the reflected laser radiation is recorded on one sensor of the photodiode array, from the output of the photodiode array, the recorded signal is converted by an analog-to-digital converter into a digital code and enters the processing and control device, where it is further processed by a specialized program, as well as the issuance of appropriate commands for adjusting the optical systems, to determine the parameters of the current environment, taking into account the measurement of its temperature T with information processing.

EFFECT: use of autotuning commands makes it possible to ensure the fall of the center of the laser radiation pattern on the interface between the prism and the flowing medium at a critical angle α_с with various deviations in the state of the medium from the standard one, providing the maximum value of the degree of contrast of the light-shadow border when measuring its position on the photodiode ruler.

1 cl, 3 dwg