Loading patent…
AssigneeTelectro-Mek, Inc.
InventorJames Edward Andrews, JR.
Estimating the term…
An apparatus and method of measuring free water, also known as undissolved water, in hydrocarbon fuel. A housing defines a chamber and is adapted to receive a fluorescein impregnated filter pad in the chamber between a UV light source and a light sensor. The filter pad is exposed to the fuel causing the free water to react with the fluorescein and is then placed within the chamber between the light source and sensor. The UV light strikes one side surface of the filter pad and excites the reacted fluorescein thereby causing light emitted from the UV light reacted fluorescein filter pad opposite side surface to strike the light sensor. An output from the light sensor is proportional to the fluorescein on the filter pad which reacted with free water and is used for providing an output value representative of the free water present in the hydrocarbon fuel.
A method of measuring free water in hydrocarbon fuel comprising the steps of:
The method of claim 17 further comprising providing a 300 nm to 500 nm light bandpass optical filter in the chamber between the UV light source and the filter pad, and providing a 500 nm to 650 nm light bandpass optical filter in the chamber between the filter pad and the light sensor.
Dependencies are inferred from the claim text.