On the basis of theory of electromagnetic field, this paper introduces a fundamental equation for electromagnetic flowmeter and a calculating equation of electrode electromotive forces.
本文根据电磁场理论，引出电磁流量计的基本方程和电极电势的计算公式。
The electromagnetic flowmeter applied in the oil field injection profile test has better accuracy and effect.
油田注入剖面测试中应用的电磁流量计测量精度高，有较好的应用效果。
The electromagnetic flowmeter applied in the oil field injection profile test has better accuracy and effect.
油田注入剖面测试中应用的电磁流量计测量精度高，有较好的应用效果。
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