EFFECTS OF FEEDBACK PHASE IN AN EDDY-CURRENT FLAW DETECTOR ON THE RESPONSE TO DISPLACEMENT AND EFFECTS.

被引：0
|
作者：
Milyaev, D.V.
Panasyuchenko, A.M.
Nesterov, A.M.
机构：
来源：
Soviet Journal of Nondestructive Testing (English translation of Defektoskopiya) | 1975年 / 11卷 / 03期
关键词：
ELECTRIC MEASUREMENTS - Frequency - ELECTRONIC CIRCUITS - Tuning;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The effects of feedback phase are examined for an oscillator whose tuned circuit contains an eddy-current probe, with particular emphasis on the sensitivity to radial displacements and longitudinal defects in nonmagnetic components. It is shown that the influence of displacements can be eliminated. A method is given which is called phase-frequency selection. Two types of flaw detectors are compared which use phase-amplitude and phase-frequency selection, respectively.
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页码：356 / 358
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