公开(公告)号：US20110040499A1

公开(公告)日：2011-02-17

申请号：US12935307

申请日：2009-03-27

申请人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

发明人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

IPC分类号： G01N33/20

CPC分类号： G01N21/892 ,  G01N21/8922 ,  G01N27/83 ,  G01N2021/8918

摘要： An apparatus for detecting periodic defects includes a sensor that obtains signals to evaluate properties of an area having a length longer than an expected defect period on a target sample; a small area selector that separates a plurality of small areas whose area length is shorter than that of the area so that all distance intervals adjacent to one another are equal in a periodic defect arrangement direction to determine positions of the plurality of small areas, and selecting signals corresponding to the positions of the plurality of small areas from outputs from the sensor; an evaluation index calculator that calculates a similarity evaluation index between signal patterns among a plurality of signals selected by the small area selector; a set value changer that changes the positions of the small areas and the distance interval, and repeating computational processings of the small area selector and the evaluation index calculator; and a period judgment device that judges the distance interval as a period when the evaluation index is higher than a value set beforehand.

摘要翻译： 用于检测周期性缺陷的装置包括：传感器，其获取信号以评估长度大于目标样品上的预期缺陷周期的区域的性质; 小区域选择器，其区分面积长度小于区域长度的多个小区域，使得在周期性缺陷排列方向上彼此相邻的所有距离间隔相等，以确定多个小区域的位置，并选择 对应于来自传感器的输出的多个小区域的位置的信号; 评估指标计算器，计算由小区域选择器选择的多个信号之间的信号模式之间的相似度评估指标; 改变小区域和距离间隔的位置的设定值改变器，并且重复小区域选择器和评估指标计算器的计算处理; 以及周期判断装置，其将所述距离间隔判定为所述评价指标高于预先设定的值的期间。

公开(公告)号：US20110000338A1

公开(公告)日：2011-01-06

申请号：US12667437

申请日：2008-08-20

申请人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

发明人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

IPC分类号： C22B5/00 ,  G01B7/24 ,  G01L1/00 ,  C21B3/00

CPC分类号： G01B7/34 ,  G01N27/83

摘要： A detection method for detecting a concavo-convex shape surface defect existing on a ferromagnetic metal object including sensing a signal attributed to strain of the concavo-convex shape surface defect having a size in a range of 0.5 to 6 μm. The signal is magnetic flux leaking from the ferromagnetic metal to which magnetic flux is applied. A detecting apparatus incorporates a magnetizer for magnetizing a ferromagnetic metal and a plurality of magnetic sensors arranged in the direction perpendicular to a traveling direction of the ferromagnetic metal to sense a signal attributed to strain of a concavo-convex shape surface defect having a size in a range of 0.5 to 6 μm.

摘要翻译： 一种用于检测存在于强磁性金属物体上的凹凸形状表面缺陷的检测方法，包括感测归因于具有0.5至6μm范围内的尺寸的凹凸形状表面缺陷的应变的信号。 该信号是从施加磁通的铁磁金属泄漏的磁通量。 一种检测装置包括用于磁化铁磁金属的磁化器和沿与铁磁金属的行进方向垂直的方向布置的多个磁性传感器，以感测归因于具有尺寸的凹凸形状表面缺陷的信号 范围为0.5〜6μm。

公开(公告)号：US5575232A

公开(公告)日：1996-11-19

申请号：US360731

申请日：1994-12-21

申请人： Hiroharu Kato ,  Yoshiaki Takahashi

发明人： Hiroharu Kato ,  Yoshiaki Takahashi

IPC分类号： B63B1/38

CPC分类号： B63B1/38 ,  B63B2001/387 ,  Y02T70/122

摘要： A method for reducing the frictional resistance of a navigating vehicle, and a method for generating micro-bubbles for reducing the friction of the navigating vehicle and an apparatus therefor. The friction reduction is achieved with the expenditure of a small amount of energy, thereby improving the overall energy efficiency for operating the ship. An air bubble/water mixture is injected towards the stern of the ship, at an inclined angle to the underwater surface, into a boundary layer formed in the vicinity of the underwater surface of the ship. The friction reduction is effectively performed because of the dynamic energy of the water, being a larger mass than air, enables the gas-including mixture to be injected over a longer distance into the boundary layer than in the case of air bubbles alone.

摘要翻译： 一种用于降低导航车辆的摩擦阻力的方法，以及用于产生微气泡以减少导航车辆的摩擦力的方法及其装置。 摩擦减少是通过少量能源的消耗来实现的，从而提高了操作船舶的整体能源效率。 将气泡/水混合物以与水下表面倾斜的角度朝船的船尾喷射到形成在船舶的水下表面附近的边界层中。 由于水的动态能量，空气的质量比空气大，能够有效地进行摩擦减少，因此能够使含气体混合物比单独的气泡更长的距离喷入边界层。

公开(公告)号：US20110148405A1

公开(公告)日：2011-06-23

申请号：US13059467

申请日：2009-08-26

申请人： Hiroharu Kato ,  Akio Nagamune ,  Toshito Takamiya

发明人： Hiroharu Kato ,  Akio Nagamune ,  Toshito Takamiya

IPC分类号： G01R33/02 ,  C22C38/00

CPC分类号： G01R33/1223 ,  C21D8/12 ,  G01N27/82 ,  G01R33/04 ,  H01F1/16 ,  H01F7/20 ,  H01F13/00

摘要： A magnetism measuring method includes magnetizing a magnetic material with a direct current to a rotational magnetization region, performing an alternate current excitation in a direction having a component orthogonal to a direction of the direct current magnetization, and measuring a component of an alternate current magnetic field generated by an interaction with the magnetic material in a direction orthogonal to the direction of the direct current magnetization.

摘要翻译： 一种磁测量方法，包括：将具有直流电流的磁性材料磁化到旋转磁化区域，在具有与直流磁化方向正交的分量的方向上进行交流励磁，以及测量交流磁场的分量 在与直流磁化方向正交的方向上与磁性材料的相互作用产生。

公开(公告)号：US20090260488A1

公开(公告)日：2009-10-22

申请号：US12419027

申请日：2009-04-06

申请人： Atsushi Kanazawa ,  Hiroharu Kato

发明人： Atsushi Kanazawa ,  Hiroharu Kato

IPC分类号： B25B13/00

CPC分类号： B25B13/48 ,  B25B17/00 ,  B25B21/002

摘要： A clamping mechanism includes a pair of contact portions facing each other which is capable of directly contacting a tie rod hexagonal portion, and an open-close drive mechanism that causes the both contact portions to move away from and approach the tie rod hexagonal portion. By appropriately changing the distance between surfaces of the mutually facing pair of contact portions, the tie rod hexagonal portion will be securely clamped by the pair of contact portions, regardless of the size of the diameter of the tie rod. Then, the tie rod hexagonal portion is rotated to adjust the toe angle, by rotating the clamping mechanism via the rotation drive mechanism.

摘要翻译： 夹紧机构包括能够直接接触拉杆六角形部分的彼此相对的一对接触部，以及使两个接触部分远离并接近拉杆六角形部分的开闭驱动机构。 通过适当地改变相互面对的一对接触部分的表面之间的距离，拉杆六角形部分将被一对接触部分牢固地夹紧，而不管拉杆的直径如何。 然后，通过旋转驱动机构旋转夹紧机构，使拉杆六角形部分旋转以调节束角。

公开(公告)号：US6092480A

公开(公告)日：2000-07-25

申请号：US110558

申请日：1998-07-06

申请人： Yoshiaki Takahashi ,  Yuki Yoshida ,  Hiroharu Kato

发明人： Yoshiaki Takahashi ,  Yuki Yoshida ,  Hiroharu Kato

IPC分类号： B63B1/38 ,  B63B1/34

CPC分类号： B63B1/38 ,  B63B2001/387 ,  Y02T70/122

摘要： A method is provided for reducing skin-friction of a ship moving through bubbly flow fields generated in proximity of hull surfaces by jetting gas through a plurality of jet nozzles provided on hull surfaces of the ship. The gas flow rate is controlled so as to establish a peak void fraction in a turbulent boundary layer, by applying an observation that the location of a peak void fraction shifts away in a direction normal to the hull surface with increasing gas flow rate through the jet nozzles.

摘要翻译： 提供一种方法，用于通过在船体的船体表面上提供的多个喷嘴喷射气体来减少移动通过在船体表面附近产生的气泡流场的船舶的皮肤摩擦。 控制气体流速，以便在湍流边界层中建立峰值空隙率，通过观察到峰值空隙率的位置在垂直于船体表面的方向上偏移，观察到通过喷射器的气体流速增加 喷嘴。

公开(公告)号：US5081658A

公开(公告)日：1992-01-14

申请号：US476251

申请日：1990-02-07

申请人： Kiyotaka Imai ,  Hiroharu Kato ,  Tadaaki Hattori ,  Katsuyuki Nishifuji

发明人： Kiyotaka Imai ,  Hiroharu Kato ,  Tadaaki Hattori ,  Katsuyuki Nishifuji

IPC分类号： G01N23/223

CPC分类号： G01N23/223 ,  G01N2223/076

摘要： The plating amount and composition of a plated steel plate are measured by determining a theoretical relation for an intensity at two different light-receiving angles of K-series fluorescent X-rays of analysis target elements reflected by the plate when monochromatized X-rays are radiated onto the plate at two incident angles, measuring a fluorescent X-ray intensity by using standard samples having known plating amounts and compositions, under the same conditions as for obtaining the theoretical relation, and calculating a conversion coefficient for converting the measured value into a theoretical value by the theoretical relation, measuring a fluorescent X-ray intensity obtained from a plated steel plate to be measured having unknown plating amount and composition under the same conditions for obtaining the theoretical relation, and converting the measured fluorescent X-ray intensity into a theoretical intensity by using the conversion coefficient, and calculating a plating amount and composition as parameters in the theoretical relation, which minimize a difference between the theoretical intensity obtained by the theoretical relation and the converted theoretical intensity, as a plating amount and composition of the plate to be measured.

公开(公告)号：US09008975B2

公开(公告)日：2015-04-14

申请号：US12935307

申请日：2009-03-27

申请人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

发明人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

IPC分类号： G01N21/00 ,  G01N21/892 ,  G01N27/83 ,  G01N21/89

CPC分类号： G01N21/892 ,  G01N21/8922 ,  G01N27/83 ,  G01N2021/8918

摘要： An apparatus for detecting periodic defects includes a sensor that obtains signals to evaluate properties of an area having a length longer than an expected defect period; a small area selector that separates small areas whose area length is shorter than that of the area so that all adjacent distance intervals are equal in a periodic defect arrangement direction, and selecting signals corresponding to the positions of the plurality of small areas from outputs from the sensor; an evaluation index calculator that calculates a similarity evaluation index between signal patterns among signals selected by the small area selector; a set value changer that changes the positions of the small areas and the distance interval, and repeating computational processings of the small area selector and the evaluation index calculator; and a period judgment device that judges the distance interval as a period when the evaluation index is higher than a value.

摘要翻译： 用于检测周期性缺陷的装置包括：传感器，其获得用于评估长度大于预期缺陷周期的区域的特性的信号; 区域选择器，其区域长度小于所述区域的小区域，使得周期性缺陷排列方向上的所有相邻距离间隔相等，并且从所述多个小区域的输出中选择与所述多个小区域的位置相对应的信号 传感器; 评估指标计算器，计算由小区域选择器选择的信号之间的信号模式之间的相似度评估指标; 改变小区域和距离间隔的位置的设定值改变器，并且重复小区域选择器和评估指标计算器的计算处理; 以及周期判断装置，其将所述距离间隔判定为所述评价指标高于所述值的期间。

公开(公告)号：US08466673B2

公开(公告)日：2013-06-18

申请号：US12667437

申请日：2008-08-20

申请人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

发明人： Takahiro Koshihara ,  Hiroharu Kato ,  Akio Nagamune

IPC分类号： G01N27/82

CPC分类号： G01B7/34 ,  G01N27/83

摘要： A detection method for detecting a concavo-convex shape surface defect existing on a ferromagnetic metal object including sensing a signal attributed to strain of the concavo-convex shape surface defect having a size in a range of 0.5 to 6 μm. The signal is magnetic flux leaking from the ferromagnetic metal to which magnetic flux is applied. A detecting apparatus incorporates a magnetizer for magnetizing a ferromagnetic metal and a plurality of magnetic sensors arranged in the direction perpendicular to a traveling direction of the ferromagnetic metal to sense a signal attributed to strain of a concavo-convex shape surface defect having a size in a range of 0.5 to 6 μm.

摘要翻译： 一种用于检测存在于铁磁金属物体上的凹凸形状表面缺陷的检测方法，包括感测归因于具有0.5至6μm范围内的尺寸的凹凸形状表面缺陷的应变的信号。 该信号是从施加磁通的铁磁金属泄漏的磁通量。 一种检测装置包括用于磁化铁磁金属的磁化器和沿与铁磁金属的行进方向垂直的方向布置的多个磁性传感器，以感测归因于具有尺寸的凹凸形状表面缺陷的信号 范围为0.5至6 mum。

公开(公告)号：US06324480B1

公开(公告)日：2001-11-27

申请号：US09317326

申请日：1999-05-24

申请人： Yoshiaki Takahashi ,  Yuki Yoshida ,  Hiroharu Kato

发明人： Yoshiaki Takahashi ,  Yuki Yoshida ,  Hiroharu Kato

IPC分类号： G01F1700

CPC分类号： B63B1/38 ,  B63B9/00 ,  G01N13/00 ,  G01N19/02 ,  G01N2013/0216 ,  G01N2013/0266 ,  Y02T70/122

摘要： A method is provided for analyzing the effects of bubbles on skin-friction reduction in a ship cruising in a bubbly flow field. A shear stress decrement &tgr;t produced by a bubble in a flow field is obtained in a high frequency band region, in which a product of a bubble time-constant T and a turbulence frequency &ohgr;L in a flow field is sufficiently greater than 1, based on a resistive force &Dgr;Rv acting on a bubble derived from the bubble movements in a fluid flow direction along a ship surface and in a direction at right angles to a ship wall surface. Assuming that the shear stress a decrement is generated by a decrease in a gas mixing length, an expression for the operative wall constant &kgr;1 for bubbly flow including a parametric bubble diameter db is derived. Based on an expression relating the operative wall constant &kgr;1 and a local friction factor Cf in bubbly flow, and an expression relating the normal wall constant &kgr; in non-bubbly flow and a local friction factor Cf0 in non-bubbly flow, an analytical solution is obtained for a skin-friction ratio Cf/Cf0.

摘要翻译： 提供了一种用于分析泡沫对气泡流场中船舶巡航中的皮肤 - 摩擦减少的影响的方法。 在流场中的气泡时间常数T和湍流频率ωL的乘积充分大于1的高频带区域中获得由流场中的气泡产生的剪切应力减小和t， 基于作用在沿着船舶表面的流体流动方向的气泡运动产生的气泡和与船舶壁表面成直角的方向上的阻力DFTARv。 假设剪切应力由于气体混合长度的减小而产生减量，则推导出包括参数气泡直径db在内的用于气泡流的操作壁常数kappa1的表达式。 基于与气泡流中的操作壁常数kappa1和局部摩擦系数Cf相关的表达式，以及与非气泡流中的正常壁常数kappa和非气泡流中的局部摩擦系数Cf0相关联的表达式，解析解是 获得的皮肤摩擦比Cf / Cf0。