Paramagnetic gas sensor apparatus and adjustment method
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United States of America Patent
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Jul 28, 2015
Grant Date -
Aug 9, 2012
app pub date -
Feb 3, 2012
filing date -
Feb 8, 2011
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Abstract
This present invention relates to a device for the measurement of the amount of oxygen in a gas mixture, or other gas with significantly different magnetic susceptibility than the background gas mixture, by the use of a suspended test body in a magnetic field that experiences force due to the magnetic susceptibility of the measurand gas. In order to enable a fast time response for the system with a change in oxygen concentration, a flow regime is presented which allows a fast sweep of the measurement volume combined with adjustable, balanced pressure drops via a flow balancing element (or elements) within the flow channels to independently minimise flow related uncertainties.
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