公开(公告)号：US4882539A

公开(公告)日：1989-11-21

申请号：US164575

申请日：1988-03-07

申请人： Joerg Quittkat ,  Gerhard Thiel

发明人： Joerg Quittkat ,  Gerhard Thiel

IPC分类号： G01B7/06 ,  G01B17/00 ,  G01B21/08

CPC分类号： G01B7/063 ,  G01B17/00 ,  G01B21/08

摘要： A monitoring system monitoring electrical components of an apparatus for electrodynamic wall-thickness and defect testing includes a transmitter generating brief signals. An electrodynamic converter has a transmitter coil connected to the transmitter for receiving the brief signals and feeding the brief signals into a workpiece to be tested in which the brief signals are reflected. The electrodynamic converter has a receiver coil receiving the reflected signals. An amplifier is connected to the receiver coil for receiving the reflected signals and an evaluation unit is connected to the amplifier for receiving the reflected signals. At least one damping element and a delay line are connected to the transmitter for delaying and damping the brief signals. The delay line is coupled through the electrodynamic converter to the evaluation unit for feeding the delayed and damped signals to the transmitter coil.

摘要翻译： 用于监测用于电动壁厚和缺陷测试的装置的电气部件的监视系统包括产生简短信号的发射器。 电动转换器具有连接到发射器的发射器线圈，用于接收短信号并将短信号馈送到待测试的工件中，其中短信号被反射。 电动转换器具有接收反射信号的接收器线圈。 放大器连接到接收器线圈以接收反射信号，并且评估单元连接到放大器以接收反射信号。 至少一个阻尼元件和延迟线连接到发射器，用于延迟和阻尼短路信号。 延迟线通过电动转换器耦合到评估单元，用于将延迟和衰减的信号馈送到发射器线圈。