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1. 发明申请

US20230018264A1 METHOD FOR DETERMINING A MATERIALS CHARACTERISTIC VALUE OF MAGNETIZABLE METAL BODIES BY MEANS OF A MICROMAGNETIC SENSOR ASSEMBLY, AND CORRESPONDING SENSOR ASSEMBLY 有权
公开(公告)号：US20230018264A1
公开(公告)日：2023-01-19
申请号：US17757171
申请日：2020-12-08
申请人： ROSEN SWISS AG
发明人： Werner Thale , Sebastian Hühn
IPC分类号： G01N27/72
摘要： A method is provided for determining at least one material characteristic of a magnetizable metal body by means of a micromagnetic sensor arrangement, which comprises at least one excitation coil having a magnetic core for signal excitation and at least one receiver. The body is magnetized by the sensor arrangement via current or voltage excitation of the sensor arrangement, which comprises at least one sign change between a positive part of a half-wave and a negative part of a half-wave. At least one signal is measured in the receiver, and the signal is Fourier transformed. The material characteristic are determined from at least one Fourier component. The excitation is turned off, and the post-oscillation of the signal is measured in the receiver. At least the part of the signal resulting from the post-oscillation in the Fourier transformation is used.

2. 发明申请

US20160231277A1 METHOD FOR THE CONTACTLESS DETERMINATION OF A MECHANICAL-TECHNOLOGICAL CHARACTERISTIC VARIABLE OF FERROMAGNETIC METALS, AND ALSO APPARATUS FOR SAID METHOD 审中-公开
标题翻译：用于联合确定机械性能特征的变形金属的方法，以及用于确定方法的装置
公开(公告)号：US20160231277A1
公开(公告)日：2016-08-11
申请号：US15023104
申请日：2014-09-16
申请人： ROSEN SWISS AG
发明人： Daniel Molenda , Werner Thale , Bernhard Reining
IPC分类号： G01N27/80 , G01N27/90 , G01N27/02
CPC分类号： G01N27/80 , G01N27/025 , G01N27/72 , G01N27/9006 , G01N27/9033
摘要： A method is disclosed for determining a mechanical-technological characteristic variable of ferromagnetic metals, preferably ferromagnetic steels, and in particular fine-grained steels, which are used in pipelines. A magnetization apparatus, which has at least one permanent magnet or solenoid, magnetizes the metal which is to be determined, and a sensor apparatus comprising a transmission coil generates a magnetic field which interacts with the magnetic field which is generated by the magnetization apparatus in the metal, and which generates an eddy current. The eddy current is generated in the magnetically at least substantially saturated metal, and the eddy current is measured by an eddy current sensor of the sensor apparatus. A magnetic field strength sensor measures the magnetic field of the metal at least close to the surface, and the electrical conductivity or the specific electrical resistance of the metal is ascertained from the data from the eddy current sensor on the basis of reference data by means of an evaluation apparatus. The characteristic variable of the metal is derived from the conductivity or the resistance, and also an inspection gauge for carrying out a method of this kind.
摘要翻译：公开了一种用于确定用于管道中的铁磁性金属，优选铁磁性钢，特别是细粒度钢的机械技术特征变量的方法。具有至少一个永磁体或螺线管的磁化装置对要确定的金属进行磁化，并且包括传输线圈的传感器装置产生与由磁化装置产生的磁场相互作用的磁场金属，并产生涡流。在磁性至少基本上饱和的金属中产生涡流，并且涡电流由传感器装置的涡流传感器测量。磁场强度传感器至少接近表面测量金属的磁场，并根据参考数据从涡流传感器的数据中确定金属的电导率或比电阻，借助于评价装置。金属的特征变量来源于电导率或电阻，也是用于执行这种方法的检验仪。

3. 发明申请

US20210255146A1 DEVICE AND METHOD FOR DETERMINING THE EXTENT OF DEFECTS BY MEANS OF V THROUGH-TRANSMISSION 有权
公开(公告)号：US20210255146A1
公开(公告)日：2021-08-19
申请号：US17049227
申请日：2019-04-12
申请人： ROSEN SWISS AG
发明人： Michael Esseling , Werner Thale
IPC分类号： G01N29/11 , G01N29/04 , G01N29/22 , G01N29/24 , G01N29/265
摘要： Method is provided for determining the extent of defects, in particular of crack depths, in a test specimen. At least one transmitting transducer excites sound waves in the ultrasonic range, and the sound waves propagate in the form of a sound beam. The acoustic axis of the sound beam preferably forms an angle the normal to a surface of the test specimen facing the transmitting transducer. The sound waves couple into the test specimen obliquely and are reflected in particular in a V-shaped manner at a preferably outer interface of the test specimen. At least one receiving transducer spaced apart from the transmitting transducer receives the sound waves reflected at the interface of the test specimen. By means of an evaluation unit, an extent of a defect arranged within a sound path is determined from a reduction of the amplitude of the sound waves received by the receiving transducer. The transmitting transducer and the receiving transducer are guided past the test specimen at an at least substantially constant distance therefrom, and the sound waves are coupled into the test specimen with an advance section via a liquid medium. A device for detecting signals based on defects in a test specimen is also provided.

4. 发明授权

US11913909B2 Device and method for determining the extent of defects by means of v through-transmission 有权
公开(公告)号：US11913909B2
公开(公告)日：2024-02-27
申请号：US17049227
申请日：2019-04-12
申请人： ROSEN SWISS AG
发明人： Michael Esseling , Werner Thale
IPC分类号： G01N29/11 , G01N29/04 , G01N29/22 , G01N29/24 , G01N29/265
CPC分类号： G01N29/11 , G01N29/043 , G01N29/221 , G01N29/2487 , G01N29/265 , G01N2291/0289 , G01N2291/044 , G01N2291/056
摘要： Method is provided for determining the extent of defects, in particular of crack depths, in a test specimen. At least one transmitting transducer excites sound waves in the ultrasonic range, and the sound waves propagate in the form of a sound beam. The acoustic axis of the sound beam preferably forms an angle the normal to a surface of the test specimen facing the transmitting transducer. The sound waves couple into the test specimen obliquely and are reflected in particular in a V-shaped manner at a preferably outer interface of the test specimen. At least one receiving transducer spaced apart from the transmitting transducer receives the sound waves reflected at the interface of the test specimen. By means of an evaluation unit, an extent of a defect arranged within a sound path is determined from a reduction of the amplitude of the sound waves received by the receiving transducer. The transmitting transducer and the receiving transducer are guided past the test specimen at an at least substantially constant distance therefrom, and the sound waves are coupled into the test specimen with an advance section via a liquid medium. A device for detecting signals based on defects in a test specimen is also provided.

5. 发明授权

US11604166B2 Method for the contactless determination of a mechanical-technological characteristic variable of ferromagnetic metals, and also apparatus for said method 有权
公开(公告)号：US11604166B2
公开(公告)日：2023-03-14
申请号：US15023104
申请日：2014-09-16
申请人： ROSEN Swiss AG
发明人： Daniel Molenda , Werner Thale , Bernhard Reining , Michael Rapp
IPC分类号： G01N27/80 , G01N27/72 , G01N27/02 , G01N27/90
摘要： A method is disclosed for determining a mechanical-technological characteristic variable of ferromagnetic metals, preferably ferromagnetic steels, and in particular fine-grained steels, which are used in pipelines. A magnetization apparatus, which has at least one permanent magnet or solenoid, magnetizes the metal which is to be determined, and a sensor apparatus comprising a transmission coil generates a magnetic field which interacts with the magnetic field which is generated by the magnetization apparatus in the metal, and which generates an eddy current. The eddy current is generated in the magnetically at least substantially saturated metal, and the eddy current is measured by an eddy current sensor of the sensor apparatus. A magnetic field strength sensor measures the magnetic field of the metal at least close to the surface, and the electrical conductivity or the specific electrical resistance of the metal is ascertained from the data from the eddy current sensor on the basis of reference data by means of an evaluation apparatus. The characteristic variable of the metal is derived from the conductivity or the resistance, and also an inspection gauge for carrying out a method of this kind.

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