| CPC G01N 21/35 (2013.01) [G01N 21/33 (2013.01); G01N 21/85 (2013.01); G06N 20/00 (2019.01); G01N 2201/022 (2013.01)] | 26 Claims |
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1. An optical monitoring apparatus for determining a characteristic of a fluid, comprising:
a housing removably attachable to a pipe having a sight glass, the housing defining a first cavity, the housing comprising:
a first housing member and a second housing member; and
a latching mechanism configured to latch the first housing member to the second housing member;
a spectral optical sensor comprising:
an optical source disposed in the first cavity, the optical source being aligned with the sight glass when the first housing member is latched to the second housing member with the pipe passing therebetween, wherein the optical source is configured to emit light having an emission spectrum with a bandwidth in excess of 100 nm; and
an optical detector configured to produce an output signal by receiving the light upon being scattered by the fluid; and
a controller configured to:
select a target sub-band of the emission spectrum based on information associated with the fluid; and
determine the characteristic of the fluid using a portion of the output signal associated with the target sub-band of the emission spectrum.
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