US 12,031,904 B2
Optical fluid analyzer
Momen Anwar, Cairo (EG); Mohamed H. Al Haron, Cairo (EG); Yasser M. Sabry, Cairo (EG); and Mohamed Sakr, Cairo (EG)
Assigned to SI-WARE SYSTEMS, Cairo (EG)
Filed by Si-Ware Systems, Cairo (EG)
Filed on Jun. 13, 2022, as Appl. No. 17/839,102.
Claims priority of provisional application 63/210,450, filed on Jun. 14, 2021.
Prior Publication US 2022/0397518 A1, Dec. 15, 2022
Int. Cl. G01N 21/3504 (2014.01); G01N 21/35 (2014.01); G01N 33/497 (2006.01)
CPC G01N 21/3504 (2013.01) [G01N 33/497 (2013.01); G01N 2021/3595 (2013.01); G01N 2201/0221 (2013.01); G01N 2201/0227 (2013.01); G01N 2201/127 (2013.01)] 19 Claims
OG exemplary drawing
 
1. An optical fluid analyzer, comprising:
a light source configured to generate input light;
a fluid cell configured to receive a fluid;
a first optical element configured to seal the fluid cell on a first side thereof, the first optical element further configured to direct the input light into the fluid cell on the first side thereof, wherein the first optical element comprises a ball lens coupled between the light source and the first side of the fluid cell, the ball lens being coated with a filter response coating on opposing ends thereof;
a second optical element configured to seal the fluid cell on a second side thereof opposite the first side, the second optical element further configured to receive output light from the fluid cell via the second side thereof;
a spectrometer configured to receive the output light via the second optical element and to obtain a spectrum of the fluid based on the output light;
a rotation device coupled to the ball lens and configured to rotate the ball lens between a first orientation in which the input light passes through the ball lens without passing through the filter response coating and a second orientation in which the input light passes through the filter response coating of the ball lens; and
a machine learning engine configured to receive the spectrum and to generate a result defining at least one parameter of the fluid, wherein the optical fluid analyzer is configured to operate in a calibration mode to calibrate the machine learning engine when the ball lens is in the second orientation.