Unibody, zero maintenance, oxygen sensor for jet fuel environments

PhotoSense, LLC proposes to design an oxygen measurement system for use in jet fuel tanks based on the selective quenching of the luminescence of certain dye molecules by oxygen. The system will require no wiring or optical paths inside the fuel tank, no heaters, will be lightweight, compact, and consume under 1 watt of power. Construction is entirely solid state, employing no liquids, valves or other moving parts. In order to calculate oxygen percentage from oxygen partial pressure, tank pressure and temperature will be measured. The unit can be constructed in a single, solid, molded package for high impact resistance, stability and ease of replacement. Each measurement includes a self-calibration to compensate for long-term drift in the electronics or optics and gives a 10 flight-year operational lifetime. The unit would require no maintenance or in-situ calibration. At the end of its life it would simply be replaced.