Measuring and testing – Volume or rate of flow – By measuring electrical or magnetic properties
Patent
1995-03-08
1997-01-21
Chilcot, Richard
Measuring and testing
Volume or rate of flow
By measuring electrical or magnetic properties
128691, G01F 158
Patent
active
055961509
ABSTRACT:
Method and apparatus for making measurements on fluids are disclosed, including the use of a capacitive probe for measuring the flow volume of a material within a flow stream. The capacitance probe has at least two elongate electrodes and, in a specific embodiment of the invention, has three parallel elongate electrodes with the center electrode being an extension of the center conductor of a co-axial cable. A conductance probe is also provided to provide more accurate flow volume data in response to conductivity of the material within the flow stream. A preferred embodiment of the present invention provides for a gas flow stream through a micro-gravity environment that allows for monitoring a flow volume of a fluid sample, such as a urine sample, that is entrained within the gas flow stream.
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Paper entitled "Electromagmetic Probe Technique for Fluid Flow Measurements", J. R. Carl & G. D. Arndt.
Arndt G. Dickey
Carl James R.
Nguyen Thanh X.
Artis Jewel
Barr Hardie R.
Chilcot Richard
The United States of America as represented by the Administrator
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