The designing idea, testing principle and realization of electric circuit about the two - frequency eddytesting instrument WFL for aluminum alloy quality inspection are introduced.
论述了用于铝合金质量检测的WF L双频涡流检测仪的设计思路、检测原理和电路实现。
2
And they used what they called eddy current testing.
他们使用涡流检测。
3
Eddy current testing system bearing bearing parts dedicated to the automatic detection equipment.