Patent ID: 11874221
Assignee: YOKOGAWA ELECTRIC CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. A dissolved oxygen measurement system comprising:
a container including an interior to temporarily store liquid for analysis, the container further including an exterior surface with one or more optical windows that are transparent or semi-transparent;
an optical source to emit optical radiation, the optical source located external to the container and positioned to emit the optical radiation through at least one of the one or more optical windows and into the interior of the container, and the optical radiation comprising radiation at a wavelength that conforms to an absorption band of dissolved oxygen, wherein the wavelength is in the infrared spectrum, and wherein the optical radiation emitted by the optical source causes luminescence, the luminescence being by dissolved oxygen in the liquid; and
a photodetector located external to the container, the photodetector being in optical communication with the liquid in the interior of the container via one or more of the optical windows.