Technology

The operating principal underlying optical DO sensors is the behavior of a special oxygen-sensitive molecule called a luminophore. For use in DO sensors, luminophore molecules are dispersed in an oxygen-permeable film, forming a sensing film. The distinguishing feature of the Opti O2 DO sensor is our patented (pending) sensing film. All other components of the Opti O2 device are available commercially and have been optimized for use with the Opti O2 sensing film.

To address the specific needs of the environmental monitoring sector, our DO sensor provide several key benefits. First, the sensor does not need to be cleaned or recalibrated, something that is not feasible with any other DO sensor on the market today and which renders existing DO sensor unsuitable for extended, hands-off operations. Second, the output of our sensor conforms to industry standards and does not require an expensive, external electronics box for interrogating the sensor. Third, our sensors (optionally) have integrated wireless capabilities, making them easy and inexpensive to deploy.

There are three methods for measuring dissolved oxygen: sampling methods (which cannot be fully automated), century-old electrochemical sensors (EC), and optical sensors. This chart compares the Opti O2 DO sensor to the alternative means for measuring dissolved oxygen concentration. The following chart qualtitatively compares the Opti O2 technology to these other approaches.

compchart