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61. 发明专利

JPS63279185A METHOD OF DETECTING INHERENT STRESS OF PART 失效
公开(公告)号：JPS63279185A
公开(公告)日：1988-11-16
申请号：JP9123788
申请日：1988-04-12
申请人： SIEMENS AG
发明人： GERUHARUTO HOOFUAA , DEIITOMAARU KOTSUHO , ERUUIN SHIYUTEYUTSUKAA , UENARU GIYUNESU
IPC分类号： G01L1/00 , G01N27/72 , G01N27/80 , G01R33/12

62. 发明专利

JPS62240851A METHOD AND APPARATUS FOR MATERIAL TESTING 失效
公开(公告)号：JPS62240851A
公开(公告)日：1987-10-21
申请号：JP8422286
申请日：1986-04-14
申请人： TOSHIBA CORP
发明人： KISANUKI TETSUYA
IPC分类号： G01N3/00 , G01N27/80
摘要： PURPOSE:To facilitate the measurement of a part heretofore hard to test, particularly, the inner wall of a piping, center hole of a rotor and the like, by measuring changes in the initial permeability of a test object before and after it is subjected to a plastic deformation. CONSTITUTION:The initial permeability mu1 of a test object is measured and then, after the test object is subjected to a plastic deformation, the initial perme ability mu2 of the plastically deformed part thereof is measured. Based on the difference between the two initial permeability mu1 and mu2, the hardness of the test object is measured and further, the mechanical nature thereof is determined. In this process, an indenter 19 or the like having a pressurizer 16 to be driven by a hydraulic pressure or the like can be applied to cause a plastic deforma tion. In the measurement of the initial permeability mu1 and mu1, two coils are combined as a double coil and a magnetic field is given the test object with one coil 23 to generate an eddy current while the eddy current thus generated is detected and measured with the other coil 22.

63. 发明专利

JPS6266156A METHOD AND INSTRUMENT FOR MEASURING HARDNESS 失效
公开(公告)号：JPS6266156A
公开(公告)日：1987-03-25
申请号：JP20736185
申请日：1985-09-19
申请人： SUZUKI MOTOR CO
发明人： OHASHI SEIICHI , AOKI NORIO , TERADA MASAAKI
IPC分类号： G01N27/80
摘要： PURPOSE:To efficiently measure the hardness of a magnetic material member without exerting external force at all to the magnetic material member or destructing said member by obtaining the current value at which the residual magnetism of the magnetic material member changing in conformity with the hardness of the magnetic material member to be measured is made zero. CONSTITUTION:A primary coil 10A for generating a magnetic field and a secondary coil 10B for detecting a magnetic flux are wound as a yoke 8 of a magnetic sensor as a magnetic path forming part having a U-shaped section. The magnetic material member 2 to be measured is pressed to such sensor 4 to form a closed magnetic circuit. A coil sensor driving means 6 is connected to the sensor 4. Electric current for excitation is passed from a primary circuit 6A of the means 6 to the coil 10A to magnetize the member 2 to the satd. region. The demagnetization current in the reverse direction is then passed from a secondary circuit 6B to the coil 10A so that the residual magnetism of the member 2 is made zero. The current value at which the residual magnetism changing in conformity with the hardness of the member 2 is made zero is displayed on an ammeter 24 as a means for displaying the current value. The hardness of the member 2 is thus efficiently measured.

64. 实用新型

JPS6224984U 失效
公开(公告)号：JPS6224984U
公开(公告)日：1987-02-16
申请号：JP11484685
申请日：1985-07-26
IPC分类号： G01N27/80 , B07C5/34 , B07C5/36 , B65G47/84

65. 发明专利

JPS59162448A Magnetic flaw detecting method 失效
标题翻译：磁力检测方法
公开(公告)号：JPS59162448A
公开(公告)日：1984-09-13
申请号：JP3645383
申请日：1983-03-05
申请人： Shimadzu Corp
发明人： TODA YOSHIKAZU
IPC分类号： G01N27/80 , G01N27/82
CPC分类号： G01N27/82
摘要： PURPOSE:To make it possible to detect the defects in the axial direction and in the circumferential direction simultaneously, by arranging a plurality of sensor groups in alignment with the diverging direction of a magnetic field and in the direction of the magnetic field generated from a magnet, so that the sensors can be revolved around the magnetic field. CONSTITUTION:When a magnet is fixed and a current is flowed through a magnetizing coil 40 so as to generate a magnetic field, the magnetic field passes a material to be checked 10 from a magnetic pole 31 and returns to a core 30. When there is a defect in the material to be checked 10, leaking magnetic flux directed outward is generated and synthesized with a bias magnetic field. The resultant field enters one magnetic sensor 51 of sensor groups 50. When a mounting table 60 is rotated in association with the moving speed of the material to be checked 10 in the direction of an arrow, the leaking magnetic flux is detected by the magnetic sensor 50. The magnetic flux is guided to a flaw-signal judging circuit 90 by way of a rotary transformer 80. Thus the defects in the axial direction and in the circumferential direction in the material to be checked can be simultaneously detected.
摘要翻译：目的：为了能够同时检测轴向和周向上的缺陷，通过将多个传感器组布置成与磁场的发散方向对准，并且在从磁体产生的磁场的方向上，使得传感器可以围绕磁场旋转。构成：当磁体固定并且电流流过磁化线圈40以产生磁场时，磁场从磁极31通过要检查的材料10并返回到芯30。当存在要检查的材料中的缺陷10，产生泄漏的磁通量，并用偏置磁场合成。所得到的场进入传感器组50的一个磁传感器51.当安装台60与被检查材料10的移动速度相对于箭头方向旋转时，泄漏的磁通量由磁传感器通过旋转变压器80将磁通量引导到缺陷信号判断电路90.因此，可以同时检测待检查材料中的轴向和周向上的缺陷。

66. 发明专利

JPS52113280A HEAT RESISTING COIL PARTS MATERIAL OF MEASURING INSTRUMENT BY SUPERSON IC WAVE FOR DEFECT INSECTION OF STEEL MATERIAL 失效
公开(公告)号：JPS52113280A
公开(公告)日：1977-09-22
申请号：JP3026976
申请日：1976-03-19
申请人： NIPPON STEEL CORP , KYOTO CERAMIC
发明人： SUZUKI HISAO , KAWASHIMA KATSUHIRO , KOYAMA WAROU , SAGAWA NOBUKAZU
IPC分类号： G01N27/80 , G01N27/82 , G01N29/04
摘要： PURPOSE:To increase the detection sensitivity, by increasing the number of coil turn with the lamination and making possible the generation of strong electromagnetic supersonic wave.

67. 发明专利

JPS526116B2 失效
公开(公告)号：JPS526116B2
公开(公告)日：1977-02-18
申请号：JP4716272
申请日：1972-05-15
IPC分类号： G01R27/02 , G01N27/80 , G01R33/12 , G01R33/16

68. 发明专利

JPS4979287A 失效
公开(公告)号：JPS4979287A
公开(公告)日：1974-07-31
申请号：JP12135272
申请日：1972-12-04
IPC分类号： G01N27/72 , G01N27/80

69. 发明专利

JPS4828293A 失效
公开(公告)号：JPS4828293A
公开(公告)日：1973-04-14
申请号：JP6103671
申请日：1971-08-13
IPC分类号： G01N27/72 , G01N27/80 , G01N27/82

70. 实用新型

JPS4214633Y1 失效
公开(公告)号：JPS4214633Y1
公开(公告)日：1967-08-21
申请号：JP5533864
申请日：1964-07-14
IPC分类号： G01R33/12 , G01N27/72 , G01N27/80

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