Spectral diagnostics in a magnetic flow meter
作者： David L. Wehrs
DOI:
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摘要: A magnetic flow transmitter (20) provides a coil driver output (46) at selected fundamental to (48) on tube (22, 42) carrying of liquid (21). An amplifier (60) amplifies an electrode signal from the (42) and A/D converter (66) converts amplified signal. digital processor (DSP) (70) uses spectral transform such as Fourier type generate (80) based components or near noise diagnosing (82) frequency.
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