A measuring method combining mainmagneticflux and magnetic flux leakage for approaching the residual wall thickness of the oil well tubing in-service was presented.
提出采用主磁通与漏磁通相结合的方法检测在用油管剩余壁厚的方法。
2
The main problem to calculate the emf within a rotating coil is to find out the magneticflux which is changing with time.
计算旋转着的线圈中的电动势的主要问题是求出线圈中随时间而变化的磁通量。
3
Around the main circuit, the magneticflux density was the strongest around high current conductors, then electrode, upright column and cross arm, and the weakest was around crystallizer.