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JP2013148587A Test set-up and test method for non-destructive detection of flaw in device under test by means of eddy current 有权
标题翻译：通过EDDY电流测试的器件中非法破坏性检测的测试设置和测试方法
公开(公告)号：JP2013148587A
公开(公告)日：2013-08-01
申请号：JP2013008844
申请日：2013-01-21
申请人： Prueftechnik Dieter Busch Ag , プリューフテヒニークディーターブッシュアクチェンゲゼルシャフト
发明人： HEINRICH LYSEN , WERNER BRAEU
IPC分类号： G01R31/28 , G06F11/22 , G06F11/24
CPC分类号： G01N27/9046
摘要： PROBLEM TO BE SOLVED: To provide test set-up and test method for non-destructive detection of a flaw in a device under test by means of an eddy current, with increased analysis accuracy.SOLUTION: A test set-up (10) for non-destructive detection of a flaw in a device under test by means of an eddy current comprises: an excitation coil (14), to which an excitation signal (SE) can be provided to act on the device under test (16) with an electromagnetic alternating magnetic field; a receiving coil (17) to generate a coil signal (SP), which is a function of the flaw in the device under test (16); an analog-digital converter (21), which is coupled to the receiving coil (17) on the input side; a filter arrangement (22), which is coupled to the analog-digital converter (21) on the input side and is designed for band-pass filtering and scanning frequency reduction; and a demodulator (27), which is coupled to an output of the filter arrangement (22) on the input side.
摘要翻译：要解决的问题：提供测试设置和测试方法，用于通过涡流对被测设备中的缺陷进行非破坏性检测，并提高分析精度。解决方案：测试设置（10）通过涡流对被测设备中的缺陷的非破坏性检测包括：激励线圈（14），激励信号（SE）可以被施加到激励信号（SE）以作用在被测器件（16）上，其中电磁交变磁场; 接收线圈（17），其产生线圈信号（SP），所述线圈信号（SP）是被测设备（16）中的缺陷的函数; 模拟数字转换器（21），其耦合到输入侧的接收线圈（17）; 滤波器装置（22），其耦合到输入侧的模拟数字转换器（21），并被设计用于带通滤波和扫描频率降低; 和解调器（27），其耦合到输入侧的滤波器装置（22）的输出端。

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