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Electromagnetic Flow Meter Having a Driver Circuit Including a Current TransducerAn electromagnetic flow meter (EMFM) accurately measures both the complete flow rate and the dynamically fluctuating flow rate of a fluid by applying a unipolar DC voltage to excitation coils for a predetermined period of time, measuring the electric potential at a pair of electrodes, determining a complete flow rate and independently measuring the dynamic flow rate during the "on" cycle of the DC excitation, and correcting the measurements for errors resulting from galvanic drift and other effects on the electric potential. The EMFM can also correct for effects from the excitation circuit induced during operation of the EMFM.
Document ID
20150003425
Acquisition Source
Marshall Space Flight Center
Document Type
Other - Patent
Authors
Karon, David M.
Cushing, Vincent
Patel, Sandeep K.
Date Acquired
March 20, 2015
Publication Date
September 30, 2014
Subject Category
Electronics And Electrical Engineering
Report/Patent Number
Patent Number: US-Patent-8,844,370
Patent Application Number: US-Patent-Appl-SN-14/212,967
Funding Number(s)
CONTRACT_GRANT: NNM08AA55C
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-8,844,370
Patent Application
US-Patent-Appl-SN-14/212,967

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