The designing idea, testing principle and realization of electric circuit about the two - frequency eddy testing 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。
And they used what they called eddy current testing.
他们使用涡流检测。
Eddy current testing system bearing bearing parts dedicated to the automatic detection equipment.
轴承涡流检测系统专用于轴承类零件自动检测的设备。
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