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Method and device for the in situ detection of the degree of conversion of a non-magnetic phase in a ferromagnetic phase of a metallic work piece
Method and device for the in situ detection of the degree of conversion of a non-magnetic phase in a ferromagnetic phase of a metallic work piece
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机译:用于原位检测金属工件的铁磁性相中非磁性相的转化程度的方法和装置
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摘要
A method and measuring device for the in situ detection of the - phase transformation of strip steel. The detection takes place on the basis of the eddy currents of the nonmagnetic phase, which are caused from the workpiece when an electromagnetic excitation field is applied, and on the basis of response fields which are generated by the magnetic phase which may be present. At least one electromagnetic excitation field which acts on the workpiece is generated by means of at least one excitation coil, and a response field which results from the application of the excitation field is measured by means of at least one detector measurement coil. The resulting measurement signal, which is dependent on the distance between the measuring device and the workpiece, is used to detect the degree of transformation.
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