公开(公告)号：US06911826B2

公开(公告)日：2005-06-28

申请号：US10727401

申请日：2003-12-03

申请人： Yuri Alexeyevich Plotnikov ,  Thomas James Batzinger ,  Shridhar Champaknath Nath ,  Sandeep Kumar Dewangan ,  Carl Stephen Lester ,  Kenneth Gordon Herd ,  Curtis Wayne Rose

发明人： Yuri Alexeyevich Plotnikov ,  Thomas James Batzinger ,  Shridhar Champaknath Nath ,  Sandeep Kumar Dewangan ,  Carl Stephen Lester ,  Kenneth Gordon Herd ,  Curtis Wayne Rose

IPC分类号： G01B7/34 ,  G01B7/00 ,  G01N27/90 ,  G01N27/82 ,  G01R31/28 ,  G01R33/00 ,  G01R33/12

CPC分类号： G01N27/904

摘要： A pulsed eddy current sensor probe includes a sensor array board. A number of sensors are arranged on the sensor array board and are operable to sense and generate output signals from the transient electromagnetic flux in a part being inspected. Each of the sensors has a differential output with a positive and a negative output. At least one drive coil is disposed adjacent to the sensors and is operable to transmit transient electromagnetic flux into the part. A first and a second multiplexer are arranged on the sensor array board and are operable to switch between the sensors. The first and second multiplexers are connected to the positive and negative outputs of the sensors, respectively.

摘要翻译： 脉冲涡流传感器探头包括传感器阵列板。 多个传感器布置在传感器阵列板上，并且可操作以在被检查的部件中感测并产生来自瞬态电磁通量的输出信号。 每个传感器都具有带正和负输出的差分输出。 至少一个驱动线圈被布置成与传感器相邻，并且可操作以将瞬态电磁通量传输到该部件中。 第一和第二多路复用器布置在传感器阵列板上并可操作以在传感器之间切换。 第一和第二多路复用器分别连接到传感器的正和负输出。

公开(公告)号：US06707297B2

公开(公告)日：2004-03-16

申请号：US10122836

申请日：2002-04-15

申请人： Shridhar Champaknath Nath ,  Thomas James Batzinger ,  Curtis Wayne Rose ,  Yuri Alexeyevich Plotnikov ,  Kenneth Gordon Herd

发明人： Shridhar Champaknath Nath ,  Thomas James Batzinger ,  Curtis Wayne Rose ,  Yuri Alexeyevich Plotnikov ,  Kenneth Gordon Herd

IPC分类号： G01N2782

CPC分类号： G01N27/9046

摘要： A method for in-situ eddy current inspection of at least one coated component includes applying a drive pulse at a measurement position on an outer surface of the coated component, while the coated component is installed in an operational environment of the coated component. The coated component includes a base metal and a coating disposed on the base metal. The method further includes receiving a response signal from the coated component, comparing the response signal with a reference signal to obtain a compared signal, analyzing the compared signal for crack detection, and determining whether a crack near the measurement position has penetrated into the base metal, if the presence of the crack in the coating is indicated.

摘要翻译： 用于至少一个涂覆部件的原位涡流检查的方法包括在涂覆部件的外表面上的测量位置处施加驱动脉冲，同时将涂覆部件安装在涂覆部件的操作环境中。 涂覆的部件包括贱金属和设置在母材上的涂层。 该方法还包括从涂覆部件接收响应信号，将响应信号与参考信号进行比较以获得比较信号，分析用于裂纹检测的比较信号，以及确定测量位置附近的裂纹是否穿透到基底金属 如果指示涂层中存在裂纹。