| 摘要 |
An electromagnetic flowmeter works with insulating liquids, and includes circuitry for handle drifting zero-point offset and triboelectric noise occurring in turbulently flowing dielectrics. Two signal processing schemes are presented-using high frequency induction and low frequency induction, but instead of measuring total voltage, the processor senses total voltage differentials, smooths the differentials, then integrates (sums) them such that the three components of total voltage are articulated-and, importantly, the flow voltage component itself is measured.
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