A sensor which is applicable to test thickness of gas pipe wall based on electromagnetic flux leakagemethod is proposed.
提出了一种基于电磁式漏磁检测原理的传感器,用于煤气管道壁厚检测。
2
A calculation method of deriving the reactance voltage of multi-oil ducts cylindric winding is introduced by using relative magnetic leakagemethod. And the calculation examples are given here.
介绍了一种用相对漏磁法推导几种多油道圆筒式绕组的电抗电压的计算方法,并给出了计算实例。
3
The reason for abnormal leakage of general spring direct acting safety valve is analyzed and the method for overcome this abnormal leakage is proposed.