Electromagnetic flowmeter

Details Electromagnetic flowmeter Electromagnetic flowmeter

2005-01-25

2005-01-25

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Mechanical measurement system

C702S045000, C702S050000, C702S100000, C073S861000

Reexamination Certificate

active

06847901

ABSTRACT:
An electromagnetic flowmeter includes a exciting coil, exciting section, and arithmetic processing section. The exciting coil applies a magnetic field to a fluid flowing in a pipe line. The exciting section supplies an exciting current to the coil. The arithmetic processing section calculates a measurement flow rate on the basis of the measurement signal detected from the excited fluid. The arithmetic processing section includes a measurement flow rate calculation section. In calculating a measurement flow rate from the measurement signal, the measurement flow rate calculation section corrects the flow rate calculated from the measurement signal on the basis of one of adjustment coefficients, set in advance in correspondence with current values of exciting currents, which corresponds to a current value of an exciting current by which the measurement signal is obtained.

REFERENCES:
patent: 4010644 (1977-03-01), Bonfig et al.
patent: 4303980 (1981-12-01), Yard
patent: 4644799 (1987-02-01), Tomita
patent: 4709583 (1987-12-01), De Paepe et al.
patent: 4856345 (1989-08-01), Mochizuki
patent: 5443552 (1995-08-01), Tomita

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