Skip to Content
Find More Like This
Return to Search

On-line fast response device and method for measuring dissolved gas in a fluid

United States Patent

January 11, 2011
View the Complete Patent at the US Patent & Trademark Office
Brookhaven National Laboratory - Visit the Office of Technology Commercialization and Partnerships Website
A method and device for the measurement of dissolved gas within a fluid. The fluid, substantially a liquid, is pumped into a pipe. The flow of the fluid is temporally restricted, creating one or more low pressure regions. A measurement indicative of trapped air is taken before and after the restriction. The amount of dissolved air is calculated from the difference between the first and second measurements. Preferably measurements indicative of trapped air is obtained from one or more pressure transducers, capacitance transducers, or combinations thereof. In the alternative, other methods such as those utilizing x-rays or gamma rays may also be used to detect trapped air. Preferably, the fluid is a hydraulic fluid, whereby dissolved air in the fluid is detected.
Tutu; Narinder Kumar (Manorville, NY)
The United States of America as represented by the United States Department of Energy (Washington, DC), N/A (
11/ 697,862
April 9, 2007
GOVERNMENT INTERESTS The United States Government has rights in this invention pursuant to Contract No. DE-AC02-98CH10886, between the U.S. Department of Energy (DOE) and Brookhaven Science Associates (BSA).