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1. 发明申请

US20140062241A1 MAGNETIC SHEAR FORCE TRANSFER DEVICE 有权
标题翻译：磁力剪切力传递装置
公开(公告)号：US20140062241A1
公开(公告)日：2014-03-06
申请号：US13604939
申请日：2012-09-06
申请人： Robert S. Evans
发明人： Robert S. Evans
IPC分类号： H02K49/10
CPC分类号： H02K49/104 , H02K49/108 , H02K2213/03
摘要： A magnetic shear force transfer device for transferring shear forces across a non-magnetic gap includes a first magnetic structure comprising concentric circular tracks of magnetic sources magnetically printed into a first magnetizable material a second magnetic structure comprising concentric circular tracks of magnetic sources magnetically printed into a second magnetizable material. Each concentric circular track has an even number of magnetic sources where adjoining magnetic sources alternate in polarity. One or more tracks of the first magnetic structure are rotated relative to one or more tracks of the second magnetic structure such that a maximum torque condition coincides to one angular orientation between the first and second magnetic structures.
摘要翻译：用于在非磁性间隙上传递剪切力的磁性剪切力传递装置包括第一磁性结构，其包括磁性地印刷到第一可磁化材料中的磁性体的同心圆形轨道，第二磁性结构包括磁性地印刷成第二可磁化材料。每个同心圆形轨道具有偶数个磁源，其中相邻的磁源在极性上交替。第一磁性结构的一个或多个轨道相对于第二磁性结构的一个或多个轨道旋转，使得最大转矩条件与第一和第二磁性结构之间的一个角度取向一致。

2. 发明授权

US09219403B2 Magnetic shear force transfer device 有权
标题翻译：磁剪力传递装置
公开(公告)号：US09219403B2
公开(公告)日：2015-12-22
申请号：US13604939
申请日：2012-09-06
申请人： Robert S. Evans
发明人： Robert S. Evans
IPC分类号： H02K49/00 , H02K49/10
CPC分类号： H02K49/104 , H02K49/108 , H02K2213/03
摘要： A magnetic shear force transfer device for transferring shear forces across a non-magnetic gap includes a first magnetic structure comprising concentric circular tracks of magnetic sources magnetically printed into a first magnetizable material a second magnetic structure comprising concentric circular tracks of magnetic sources magnetically printed into a second magnetizable material. Each concentric circular track has an even number of magnetic sources where adjoining magnetic sources alternate in polarity. One or more tracks of the first magnetic structure are rotated relative to one or more tracks of the second magnetic structure such that a maximum torque condition coincides to one angular orientation between the first and second magnetic structures.
摘要翻译：用于在非磁性间隙上传递剪切力的磁性剪切力传递装置包括第一磁性结构，其包括磁性地印刷到第一可磁化材料中的磁性体的同心圆形轨道，第二磁性结构包括磁性地印刷成第二可磁化材料。每个同心圆形轨道具有偶数个磁源，其中相邻的磁源在极性上交替。第一磁性结构的一个或多个轨道相对于第二磁性结构的一个或多个轨道旋转，使得最大转矩条件与第一和第二磁性结构之间的一个角度取向一致。

3. 发明授权

US4859943A Inspection method using magnetic particles in a liquid carrier in combination with electrical detection means 失效
标题翻译：使用液体载体中的磁性颗粒与电气检测装置结合的检查方法
公开(公告)号：US4859943A
公开(公告)日：1989-08-22
申请号：US138888
申请日：1987-12-28
申请人： Robert S. Evans , Wayne M. Latham , Thomas Powers , Michael O. Robertson
发明人： Robert S. Evans , Wayne M. Latham , Thomas Powers , Michael O. Robertson
IPC分类号： G01N27/84
CPC分类号： G01N27/84
摘要： A method for inspecting the surface of a workpiece for the presence of flaws using a ferrofluid as a penetrant which is applied to the surface of the workpiece and then scanning the surface of the workpiece with electrical detection means placed adjacent to the surface for providing responses indicative of the presence of flaws in the surface of the workpiece. If desired, a magnetic field can be used to induce the flow of the ferrofluid into any flaws prior to inspection, and for post-inspection cleanup as well. By the use of a ferrofluid, the sensitivity of the electrical detection means, advantageously of the eddy current type, is enhanced in typical applications, and also allows the use of an eddy current probe to inspect workpieces made of nonconductive and/or nonferromagnetic materials.
摘要翻译：一种用于使用铁磁流体作为渗透剂检查工件表面以存在瑕疵的方法，该渗透剂施加到工件的表面上，然后用放置在表面附近的电检测装置扫描工件的表面，以提供响应指示在工件表面存在缺陷。如果需要，可以使用磁场来引导铁磁流体在检查之前流入任何缺陷，以及用于检查后清理。通过使用铁磁流体，有利于涡电流型的电气检测装置的灵敏度在典型应用中得到增强，并且还允许使用涡流探针来检查由非导电和/或非铁磁材料制成的工件。

4. 发明授权

US4858462A Acoustic emission leak source location 失效
标题翻译：声发射泄漏源位置
公开(公告)号：US4858462A
公开(公告)日：1989-08-22
申请号：US300408
申请日：1989-01-20
申请人： John E. Coulter , Robert S. Evans , Michael O. Robertson
发明人： John E. Coulter , Robert S. Evans , Michael O. Robertson
IPC分类号： G01M3/24
CPC分类号： G01M3/243
摘要： A method and apparatus for locating a leak which produces a continuous acoustic emission having background noise and spikes, comprises continuously monitoring the acoustic emissions using spaced apart detectors which produce signals having background noise and spikes corresponding to those of the continuous acoustic emissions. The spikes of one signal are offset in time with respect to the spikes of the other signal, which corresponds to the difference in travel time of the acoustic signals to each of the detectors. By measuring the offset between the spikes, the relative position of the acoustic emission, and thus the relative position of the leak, can be determined with respect to the position of the detectors. To facilitate separating the spikes from the background noise, a floating detection threshold value is applied to the signals for eliminating the background noise.
摘要翻译：用于定位产生具有背景噪声和尖峰的连续声发射的泄漏的方法和装置包括使用产生具有与连续声发射相对应的背景噪声和尖峰的信号的间隔开的检测器来连续监测声发射。一个信号的尖峰相对于另一个信号的尖峰在时间上偏移，这对应于声信号到每个检测器的行进时间差。通过测量尖峰之间的偏移，可以相对于检测器的位置来确定声发射的相对位置以及因此泄漏的相对位置。为了便于将峰值与背景噪声分离，将浮动检测阈值应用于消除背景噪声的信号。

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