NASA NTRS · 20080004753
Gas bubble detector
Abstract
A gas bubble detector having a modulated IR source focused through a bandpass filter onto a venturi, formed in a sample tube, to illuminate the venturi with modulated filtered IR to detect the presence of gas bubbles as small as 0.01 cm or about 0.004 in diameter in liquid flowing through the venturi. Means are provided to determine the size of any detected bubble and to provide an alarm in the absence of liquid in the sample tube.
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Mount, Bruce E., Burchfield, David E., Hagey, John M.. 1995-10-03. Gas bubble detector. https://ntrs.nasa.gov/citations/20080004753
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