公开(公告)号：US20230251226A1

公开(公告)日：2023-08-10

申请号：US18001266

申请日：2021-06-14

Applicant: JFE STEEL CORPORATION

Inventor： Yutaka MATSUI ,  Takafumi OZEKI ,  Kazuki TERADA ,  Kenji ADACHI ,  Hiroki IMANAKA ,  Daichi IZUMI ,  Junji SHIMAMURA

IPC: G01N27/80 ,  G01N27/9013 ,  B21C51/00

CPC classification number: G01N27/80 ,  G01N27/902 ,  B21C51/00

Abstract: Provided are: a mechanical property measuring apparatus and method that can accurately measure a mechanical property through physical quantities; a substance manufacturing equipment and method that can improve the production yield rate. A mechanical property measuring apparatus (100) comprises: a physical quantity measuring unit (5) configured to measure a plurality of physical quantities of a measured object that includes a substance and a film on a surface of the substance; a classification processing unit (81) configured to select one of a plurality of calculation models (M1, M2, . . . , Mn) for calculating a mechanical property of the substance, based on at least two of the plurality of physical quantities measured; and a mechanical property calculating unit (82) configured to calculate the mechanical property of the substance using the calculation model selected by the classification processing unit (81) and the at least two of the plurality of physical quantities.

公开(公告)号：US11320400B2

公开(公告)日：2022-05-03

申请号：US16951211

申请日：2020-11-18

Applicant: QASS GmbH

Inventor： Ulrich Seuthe

IPC: G01N27/72 ,  G01N27/82 ,  G01N27/90 ,  G01N27/80 ,  G01N27/9013 ,  G01N27/904 ,  G01R33/00

Abstract: The invention relates to a method for observing a magnetic field of a material volume, in particular for determining properties of a workpiece under, in particular, magnetic, mechanical, thermal, and/or electrical excitation of a material volume of the workpiece, wherein the magnetic field of the material volume is sensed as a function of time and of frequency with high frequency resolution.

公开(公告)号：US10962503B2

公开(公告)日：2021-03-30

申请号：US16338937

申请日：2017-06-01

Applicant: SINTOKOGIO, LTD.

Inventor： Yoshiyasu Makino

IPC: G01N27/90 ,  G01N27/80

Abstract: The present invention provides a surface property inspection method including a step of setting a resistance ratio between resistors R1 and R2 of an AC bridge circuit 20 in a surface properly inspection apparatus 1. The step includes a step for placing a non-surface-treated reference test pieces S on a reference detector 22 and an inspection detector 23 and measuring a first setting output signal while changing the resistance ratio γ, a step for placing the reference test piece S on the reference detector 22, placing a surface-treated setting test piece on the inspection detector 23, and measuring a second setting output signal while changing the resistance ratio, a step for calculating the differential value between the first and second output signals, and a step for setting the resistance ratio so that the absolute value of the differential value is maximized.

公开(公告)号：US20200331811A1

公开(公告)日：2020-10-22

申请号：US16880131

申请日：2020-05-21

Applicant: US SYNTHETIC CORPORATION

Inventor： Kenneth E. Bertagnolli ,  Jiang Qian ,  Jason Wiggins ,  Michael Vail ,  Debkumar Mukhopadhyay

IPC: C04B37/00 ,  C22C26/00 ,  F16C33/04 ,  F16C33/26 ,  B21C3/02 ,  G01N27/80 ,  G01N27/72 ,  B24D18/00 ,  E21B10/567

Abstract: Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteds (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm3/grams (“G·cm3/g”) or less. Other embodiments are directed to polycrystalline diamond compacts (“PDCs”) employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

公开(公告)号：US20190226289A1

公开(公告)日：2019-07-25

申请号：US16254186

申请日：2019-01-22

Applicant: ConocoPhillips Company

Inventor： Avinash L. Ramjit ,  Alexander B. Bowen

IPC: E21B21/06 ,  E21B47/12 ,  E21B21/12 ,  G01V3/28 ,  G01N27/74 ,  G01N27/80

Abstract: During a drilling operation, drilling mud is degaussed to remove magnetic interference that may disrupt measurements.

公开(公告)号：US20180179114A1

公开(公告)日：2018-06-28

申请号：US15901124

申请日：2018-02-21

Applicant: US SYNTHETIC CORPORATION

Inventor： Kenneth E. Bertagnolli ,  Jiang Qian ,  Jason Wiggins ,  Michael Vail ,  Debkumar Mukhopadhyay

IPC: C04B37/00 ,  G01N27/80 ,  G01N27/72 ,  B21C3/02 ,  B24D18/00 ,  C22C26/00 ,  E21B10/567 ,  F16C33/04 ,  F16C33/26 ,  F16C17/04 ,  F16C17/02

Abstract: Embodiments of the invention relate to polycrystalline diamond (“PCD”) exhibiting enhanced diamond-to-diamond bonding. In an embodiment, PCD includes a plurality of diamond grains defining a plurality of interstitial regions. A metal-solvent catalyst occupies at least a portion of the plurality of interstitial regions. The plurality of diamond grains and the metal-solvent catalyst collectively exhibit a coercivity of about 115 Oersteds (“Oe”) or more and a specific magnetic saturation of about 15 Gauss·cm3/grams (“G·cm3/g”) or less. Other embodiments are directed to polycrystalline diamond compacts (“PDCs”) employing such PCD, methods of forming PCD and PDCs, and various applications for such PCD and PDCs in rotary drill bits, bearing apparatuses, and wire-drawing dies.

公开(公告)号：US20130076348A1

公开(公告)日：2013-03-28

申请号：US13696021

申请日：2011-06-15

Applicant: Naotaka Ide ,  Takanari Yamamoto ,  Tatsuo Hiroshima

Inventor： Naotaka Ide ,  Takanari Yamamoto ,  Tatsuo Hiroshima

IPC: G01N27/80

CPC classification number: G01N27/80 ,  G01N27/90 ,  G01N27/9046

Abstract: An eddy current sensor that includes: a probe and a computing unit. The probe has an exciting portion and a detecting portion. The exciting portion includes a first excitation coil that is wound around a non-magnetic bobbin so that a center axis direction is oriented in an x-axis direction and a second excitation coil that is wound around the non-magnetic bobbin to intersect with the first excitation coil so that a center axis direction is oriented in a y-axis direction. The detecting portion includes a detection coil that is arranged at the lower one of two intersecting portions of the first excitation coil and the second excitation coil. An eddy current measurement method for determining the thickness of a hardened layer.

Abstract translation: 涡流传感器，包括：探头和计算单元。 探针具有激励部分和检测部分。 励磁部包括卷绕在非磁性线轴上以使得中心轴方向在x轴方向上定向的第一激励线圈和缠绕在非磁性线轴上的第二激励线圈与第一激励线圈相交， 励磁线圈，使得中心轴方向在y轴方向上取向。 检测部分包括布置在第一激励线圈和第二激励线圈的两个交叉部分中的下一个处的检测线圈。 用于确定硬化层厚度的涡流测量方法。

公开(公告)号：US4947117A

公开(公告)日：1990-08-07

申请号：US293120

申请日：1989-01-03

Applicant: Otto Buck ,  David J. Bracci ,  David C. Jiles ,  Lisa J. H. Brasche ,  Jeffrey E. Shield ,  Leonard S. Chumbley

Inventor： Otto Buck ,  David J. Bracci ,  David C. Jiles ,  Lisa J. H. Brasche ,  Jeffrey E. Shield ,  Leonard S. Chumbley

IPC: G01N27/02 ,  G01N27/80 ,  G01N33/20

CPC classification number: G01N27/80 ,  G01N27/023 ,  G01N33/20

Abstract: A method is disclosed for detecting the T.sub.1 phase in aluminum-lithium alloys through simultaneous measurement of conductivity and hardness. In employing eddy current to measure conductivity, when the eddy current decreases with aging of the alloy, while the hardness of the material continues to increase, the presence of the T.sub.1 phase may be detected.

Abstract translation: 公开了通过同时测量导电性和硬度来检测铝锂合金中的T1相的方法。 在采用涡电流测量电导率时，当涡流随合金老化而下降时，材料的硬度持续增加，可能会检测到T1相的存在。

公开(公告)号：US4881030A

公开(公告)日：1989-11-14

申请号：US182845

申请日：1988-04-18

Applicant: Erwin Stuecker ,  Gerhard Hofer ,  Dietmar Koch ,  Uenal Guenes

Inventor： Erwin Stuecker ,  Gerhard Hofer ,  Dietmar Koch ,  Uenal Guenes

IPC: G01L1/00 ,  G01N27/72 ,  G01N27/80 ,  G01R33/12 ,  G01B7/24 ,  G01R33/00 ,  G01R35/00

CPC classification number: G01N27/725

Abstract: A method and apparatus for ascertaining internal stresses in a hardened region to be tested for a component made of a predetermined material includes measuring coercive field strength and amplitude of magnetic Barkhausen noise as a function of mechanical stress and hardness in calibration samples of a predetermined material of known hardness and known internal stress. Calibration functions are ascertained from the measured values indicating the dependency of the hardness and the amplitude of the magnetic Barkhausen noise as functions of the hardness and mechanical stress. The coercive field strength and the amplitude of the magnetic Barkhausen noise is measured in a location-dependent manner over the region of the component to be tested. The measured values of the coercive field strength and the amplitude of the magnetic Barkhausen noise are converted in the region to be tested into location-dependent hardness and into location-dependent mechanical stress using the ascertained calibration functions. The location-dependent mechanical stress and the location-dependent hardness in the region to be tested are present independently of one another and are available for further processing.

Abstract translation: 用于确定待测试的用于由预定材料制成的部件的硬化区域中的内部应力的方法和装置包括测量磁性Barkhausen噪声的矫顽场强度和幅度作为机械应力和硬度的函数，该预定材料的校准样品 已知的硬度和已知的内应力。 校准功能由测量值确定，表明硬度和磁性Barkhausen噪声的振幅作为硬度和机械应力的函数。 在待测试部件的区域上以位置相关的方式测量磁性Barkhausen噪声的矫顽场强度和振幅。 使用确定的校准函数，将要测试的区域中的矫顽场强度和磁性Barkhausen噪声的测量值转换为位置相关硬度和位置相关的机械应力。 要测试的区域中的位置相关的机械应力和位置相关的硬度彼此独立地存在，并且可用于进一步的加工。

公开(公告)号：US4647856A

公开(公告)日：1987-03-03

申请号：US476877

申请日：1983-03-22

Applicant: Mikhail A. Melgui ,  Valery B. Kratirov ,  Anatoly I. Filippov ,  Viktor V. Deinekin

Inventor： Mikhail A. Melgui ,  Valery B. Kratirov ,  Anatoly I. Filippov ,  Viktor V. Deinekin

IPC: G01R33/12 ,  G01N27/72 ,  G01N27/80

CPC classification number: G01N27/80 ,  G01N27/72

Abstract: A method comprises repeatedly magnetizing a test article by a pulsed axially symmetric magnetic field normal to the surface of the test article, and reading the gradient of a residual field. Magnetizing the article is effected by two trains of pulses in two steps: first until a first instant of discontinuance in the growth of the gradient of a remanent magnetic field and then until a second instant of discontinuance, the pulse amplitude of the second pulse train being lower than a maximum amplitude of the second pulse train.An apparatus to carry out the proposed method comprises a pulse shaper 1 for forming pulses of an axially symmetric magnetic field and a measuring circuit for measuring the gradient of a remanent field normal component. According to the invention said apparatus is further provided with a working storage 4, a comparison circuit 5 and a pulse amplitude measuring device 2 for measuring pulse amplitude at the output of the pulse shaper 1. The amplitude measuring device 2 has its inputs connected to the outputs of the comparison circuit 5 and the pulse shaper 1. The inputs of the working storage 4 and the comparison circuit 2 are connected to the output of the gradient measuring circuit 3. The other input of the comparison circuit 5 is connected to the output of the working storage 4. The pulse shaper 1 includes a storage capacitor, charging and discharging circuits of said capacitor, an inhibit circuit and a comparison circuit, a pulse counter, a decoder and a code-to-analog converter electrically connected to one another.

Abstract translation: PCT No.PCT / SU81 / 00063 Sec。 371日期1983年3月22日 102（e）1983年3月22日PCT PCT。1981年7月28日PCT公布。 公开号WO83 / 00560 日期：1983年2月17日。一种方法包括通过垂直于测试物品表面的脉冲轴对称磁场和读取残余场的梯度来重复地使测试物体磁化。 物品的磁化是通过两列脉冲进行两个步骤：首先直到第一个停止生长剩余磁场梯度的瞬间，然后直到第二个停止时刻，第二个脉冲串的脉冲幅度为 低于第二脉冲串的最大振幅。 用于实现所提出的方法的装置包括用于形成轴对称磁场的脉冲的脉冲整形器1和用于测量剩磁场法线分量的梯度的测量电路。 根据本发明，所述装置还设置有工作存储器4，比较电路5和用于测量脉冲整形器1的输出处的脉冲幅度的脉冲幅度测量装置2.振幅测量装置2的输入连接到 比较电路5和脉冲整形器1的输出。工作存储器4和比较电路2的输入连接到梯度测量电路3的输出。比较电路5的另一个输入端连接到 脉冲整形器1包括存储电容器，所述电容器的充电和放电电路，禁止电路和比较电路，脉冲计数器，解码器和彼此电连接的代码到模拟转换器。