Electromagnetic flow meter having processing means resolving...

Details Electromagnetic flow meter having processing means resolving... Electromagnetic flow meter having processing means resolving...

2005-12-13

2005-12-13

Patel, Harshad (Department: 2855)

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

C702S045000

Reexamination Certificate

active

06973839

ABSTRACT:
A method of obtaining a measure of flow from an electromagnetic flow meter is disclosed. A shaped excitation waveform is applied to the flow meter and an output is received from the meter. The sampled output data from the meter is then resolved into a non-flow waveform component and a flow waveform component to derive a measure of flow. Resolving the data into expected waveform components rather than correlating each frequency component of the sampled output data with a sine wave may allow readings to be obtained without processing each frequency component separately. Also, the method may allow more accurate removal of the non-flow component from the output signal, and may decrease the time delay before the initial reading and allow the use of a greater reading repetition rate.

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patent: 2380798 (2003-04-01), None

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