Multi-wavelength ozone concentration sensor and method of use

A method of measuring a concentration of ozone within a fluid, comprising:

• generating at least one initial optical signal having a wavelength from 400 nm to 700 nm via at least one light source;
• generating at least one UV optical signal having a wavelength from 200 nm to 400 nm via at least one UV light source;
• directing the at least one initial optical signal to traverse through a conduit via one or more reflecting sites formed on the conduit, the at least one initial optical signal traversing along a first optical path through the conduit;
• directing the at least one UV optical signal to traverse through the conduit via the one or more reflecting sites formed on the conduit, the at least one UV optical signal traversing along a second optical path through the conduit,
• wherein the at least one light source and the at least one UV light source are arranged such that the first optical path of the at least one initial optical signal is longer than the second optical path of the at least one UV optical signal due to the at least one UV optical signal reflecting off of the one or more reflecting sites of the conduit fewer times than the at least one initial optical signal during the traversal through the conduit;
• sensing at least one of the at least one initial optical signal and the at least one UV optical signal after traversing through an ozonated fluid;
• and
• modifying the concentration of ozone within the ozonated fluid based on the sensed at least one of the at least one initial optical signal and the at least one UV optical signal.

An apparatus for measuring a concentration of ozone within a fluid, comprising:

• a conduit defining at least one passage therein, the conduit having at least one coating selectively applied thereto and defining one or more transmission regions on the conduit;
• a multi-wavelength light source system having at least one light source and at least one UV light source in optical communication with the at least one passage of the conduit, wherein:
• the multi-wavelength light source system is configured to emit a first optical signal having a first peak wavelength and at least a second optical signal having at least a second peak wavelength through an ozonated fluid within the conduit, and
• the at least one UV light source is configured to direct a first UV optical signal having a first peak UV wavelength and at least a second UV optical signal having at least a second peak UV wavelength through the ozonated fluid,
• wherein the at least one light source and the at least one UV light source are arranged such that the first and the at least the second optical signals and the first and the at least a second UV optical signals traverse through the conduit along different optical paths via respective reflections from the at least one coating of the conduit;
• wherein an optical path of the first and the at least a second UV optical signals traversing through the conduit is shorter than an optical path of the first and the at least the second optical signals traversing through the conduit due to the first and the at least a second UV optical signals reflecting off of the at least one coating of the conduit fewer times than the first and the at least the second optical signals during the traversal through the conduit;
• and
• at least one detector positioned proximate to the at least one transmission region formed on the conduit, the at least one detector configured to detect the first optical signal, the at least the second optical signal, the first UV optical signal, and the at least a second UV optical signal for measuring the concentration of ozone within an ozonated fluid.