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1. 发明授权

US4573013A Magnetic inspection of reinforcing steel rods in prestressed concrete 失效
标题翻译：预应力混凝土中钢筋的磁检
公开(公告)号：US4573013A
公开(公告)日：1986-02-25
申请号：US363343
申请日：1982-03-29
申请人： Felix N. Kusenberger , John R. Barton , George A. Ferguson
发明人： Felix N. Kusenberger , John R. Barton , George A. Ferguson
IPC分类号： G01N27/82 , G01R33/12
CPC分类号： G01N27/82
摘要： A method of inspecting the reinforcing members in prestressed concrete beams by generating a magnetic field close to the beam and measuring the field by means of a Hall effect sensor located between the pole pieces of the magnet. A partial or total break in a reinforcing member produces an anomaly in the magnetic field, which in turn registers as a voltage "spike" in the output of the Hall effect sensor. The method further includes a method for enhancing the data by substantially reducing or eliminating the effects of transverse reinforcing steel or support members located at the site of a break in the prestressed member.
摘要翻译：通过产生靠近光束的磁场和通过位于磁体的极片之间的霍尔效应传感器测量场来检查预应力混凝土梁中的加强构件的方法。加强构件中的部分或全部断裂产生磁场中的异常，磁场又在霍尔效应传感器的输出中注册为电压“尖峰”。该方法还包括通过显着地减少或消除位于预应力构件的断裂位置的横向钢筋或支撑构件的作用来增强数据的方法。

2. 发明授权

US4675604A Computerized and motorized electromagnetic flux leakage internal diameter tubular inspection device 失效
标题翻译：电动机动电磁泄漏内径管状检测装置
公开(公告)号：US4675604A
公开(公告)日：1987-06-23
申请号：US770329
申请日：1985-08-28
申请人： Mark C. Moyer , William D. Perry , H. Stanley Silvus, Jr. , William C. Gibson , Felix N. Kusenberger, deceased
发明人： Mark C. Moyer , William D. Perry , H. Stanley Silvus, Jr. , William C. Gibson , Felix N. Kusenberger, deceased
IPC分类号： G01N27/83 , G01N27/82 , G01N27/72
CPC分类号： G01N27/82
摘要： A device for detecting defects in the bore of a tubular member. The device includes an inspection head including an electromagnet for magnetizing the internal surface of a tubular member. The device also includes a sensor or sensors to detect magnetic flux leakage indicative of a defect. The magnetic flux sensor output is sent to a control-data acquisition system concurrently with signals as to the axial and circumferential position of the defect, which are obtained by their respective encoders. The control-data acquisition system is capable of processing and displaying the data in analog and digital form.
摘要翻译：一种用于检测管状构件的孔中的缺陷的装置。该装置包括检查头，该检查头包括用于磁化管状构件的内表面的电磁体。该装置还包括用于检测指示缺陷的磁通量泄漏的传感器或传感器。磁通传感器输出与通过其各自的编码器获得的关于缺陷的轴向和圆周位置的信号同时发送到控制数据采集系统。控制数据采集系统能够以模拟和数字形式处理和显示数据。

3. 发明授权

US4503393A Method and apparatus for detecting flaws in the threaded end of an elongate member using electromagnetic excitation and an automated scanning sensor 失效
标题翻译：用于使用电磁激励和自动扫描传感器检测细长构件的螺纹端部中的瑕疵的方法和装置
公开(公告)号：US4503393A
公开(公告)日：1985-03-05
申请号：US308749
申请日：1981-10-05
申请人： Mark C. Moyer , Clifford W. Petersen , Felix N. Kusenberger , William D. Perry , Floyd A. Balter , Cecil M. Teller, II
发明人： Mark C. Moyer , Clifford W. Petersen , Felix N. Kusenberger , William D. Perry , Floyd A. Balter , Cecil M. Teller, II
IPC分类号： G01N27/82 , G01N27/72 , G01R33/12
CPC分类号： G01N27/82
摘要： Apparatus for detecting flaws in the threaded end of a ferromagnetic pipe is disclosed. The apparatus comprises means for applying a magnetic force to produce a field generally axially through the threaded end of the pipe, first and second means adjacent successive crests of a thread for sensing a generally radial magnetic field and generating a first and second signal corresponding to the sensed magnetic fields, and means for differentially connecting the signals generated by said first and second sensing means, whereby a differential output signal is produced in response to a flaw between the crests of the thread being inspected. The apparatus also comprises means for helically rotating said sensing means to follow a path corresponding to the threads of the pipe, whereby the first and second signals vary with time.A method for detecting flaws in the threaded end of a ferromagnetic pipe is also disclosed. The method comprises the steps of applying a magnetic force to produce a field generally axially through the threaded end of the pipe, sensing the radial magnetic field adjacent successive crests of a thread of the pipe, generating first and second signals corresponding to the sensed magnetic fields, and differentially connecting the first and second signals.
摘要翻译：公开了一种用于检测铁磁管的螺纹端部中的缺陷的装置。该装置包括用于施加磁力以产生大致轴向穿过管道的螺纹端的场的装置，邻近线的相邻波峰的第一和第二装置，用于感测大体上径向的磁场，并产生对应于该第一和第二信号的第一和第二信号感测磁场，以及用于差分地连接由所述第一和第二感测装置产生的信号的装置，由此响应于所检查的线程的波峰之间的缺陷而产生差分输出信号。该装置还包括用于螺旋地旋转所述检测装置以跟随对应于管道的螺纹的路径的装置，由此第一和第二信号随时间而变化。还公开了一种用于检测铁磁管的螺纹端部中的缺陷的方法。该方法包括以下步骤：施加磁力以产生大致轴向穿过管道的螺纹端的磁场，感测与管道的螺纹的相邻波峰相邻的径向磁场，产生对应于感测磁场的第一和第二信号，并差分地连接第一和第二信号。

4. 发明授权

US4531091A Magnetic inspection of reinforcing steel using sensor array 失效
标题翻译：使用传感器阵列对钢筋进行磁检
公开(公告)号：US4531091A
公开(公告)日：1985-07-23
申请号：US363219
申请日：1982-03-29
申请人： Felix N. Kusenberger , Albert S. Lozano , Wilson B. Tarver, Jr.
发明人： Felix N. Kusenberger , Albert S. Lozano , Wilson B. Tarver, Jr.
IPC分类号： G01N27/82 , G01N33/38 , G01R33/12
CPC分类号： G01N33/383 , G01N27/82
摘要： A method of inspecting the reinforcing members in prestressed concrete beams by generating a magnetic field close to the beam and measuring the field by means of a Hall effect sensor located between the pole pieces of the magnet. A partial or total break in a reinforcing member produces an anomaly in the magnetic field, which in turn registers as a voltage "spike" in the output of the Hall effect sensor. The method further includes a method for enhancing the data by substantially reducing or eliminating the effects of transverse reinforcing steel or support members located at the site of a break in the prestressed member.
摘要翻译：通过产生靠近光束的磁场和通过位于磁体的极片之间的霍尔效应传感器测量场来检查预应力混凝土梁中的加强构件的方法。加强构件中的部分或全部断裂产生磁场中的异常，磁场又在霍尔效应传感器的输出中注册为电压“尖峰”。该方法还包括通过显着地减少或消除位于预应力构件的断裂位置的横向钢筋或支撑构件的作用来增强数据的方法。

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