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1.发明授权
公开(公告)号：US4736630A
公开(公告)日：1988-04-12
申请号：US891644
申请日：1986-08-01
CPC分类号： G01S15/8925 , G01N29/262 , G01S15/8918 , G01S15/8927 , G10K11/345 , G01S7/5209
摘要： An ultrasonic inspection apparatus and method in which a linear array of acoustic transmitters and receivers are disposed adjacent to a workpiece, and alternating potential source is connected to some of the acoustic transmitters to project a side lobe of an acoustic wave toward a specific zone of the workpiece. Thereafter, the connections between some of the acoustic transmitters and the potential source are automatically changed, to move the specific zone as many times as may be necessary to provided scanning of the workpiece.
摘要翻译： 一种超声波检查装置和方法，其中声发射器和接收器的线性阵列邻近工件设置，并且交替的电位源连接到一些声发射器，以使声波的旁瓣朝向 工件。 此后，一些声发射器和电位源之间的连接被自动地改变，以便将特定区域移动到为了提供工件的扫描而需要的次数。
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公开(公告)号：US4615217A
公开(公告)日：1986-10-07
申请号：US709704
申请日：1985-03-08
CPC分类号： G01N29/11 , G01N29/4454 , G01N2291/044 , G01N2291/102 , G01N2291/2693 , G01N2291/2695
摘要： A two-probe ultrasonic flaw detection apparatus, in which an ultrasonic wave is transmitted from a transmission probe into an object being inspected and ultrasonic waves reflected from a reflection surface in the object are received by a reception probe, operates to determine the position at which the combined intensity of ultrasonic waves reflected from each part of the reflection surface form a maximum. The reception probe is then moved to the position of maximum reception intensity. The position of maximum reception intensity is determined using as input parameters the ultrasonic characteristics of the object being inspected and of the transmission and reception probes, and the position of the transmission probe and the angle of incidence of the ultrasonic wave into the object.
摘要翻译： 一种双探头超声波探伤装置，其中超声波从传输探头传输到被检查物体中，并且由物体的反射面反射的超声波由接收探头接收，操作以确定位置 从反射表面的每个部分反射的超声波的组合强度形成最大值。 然后将接收探头移动到最大接收强度的位置。 使用作为被检查对象的超声波特性和发送接收探头的输入参数以及发送探针的位置和超声波入射到对象中的角度来确定最大接收强度的位置。
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公开(公告)号：US4831598A
公开(公告)日：1989-05-16
申请号：US33756
申请日：1987-04-03
IPC分类号： G01S7/04 , A61B6/03 , A61B8/00 , G01B11/00 , G01B17/00 , G01B17/06 , G01N29/06 , G01S15/89 , G06T5/00 , H04N7/18
CPC分类号： G01S15/8977 , G06T5/002 , G06T5/003 , G06T5/10 , G06T2207/20056
摘要： Disclosed is a picture display apparatus connected to a low resolution ultrasonic inspector so as to display a picture with high resolution. In the apparatus, an approximate spectrum of a theoretical spectrum representing an object having a known shape as a reference and a spectrum obtained through measurement of the known-shaped object are subject to Fourier transformation so that a transfer function of a measurement device is calculated from the ratio between the respective values obtained through the two operations of Fourier transformation, whereby an unknown shape of an object is displayed on the basis of the transfer function and Fourier transformation values of a measured spectrum of the object having the unknown shape. A modified Gaussian distribution obtained by combining two Gaussian distributions, in which the transformation values of the spatial spectrum of the known shape are reduced in a high frequency range and in which oscillations are less spread in the high frequency range, is employed as the approximate spectrum of the theoretical spectrum representing the known-shaped object, so that the high frequency components of the spatial spectrum of the unknown shape can be reduced and therefore a clear picture can be displayed with high resolution.
摘要翻译： 公开了连接到低分辨率超声波检查器以便以高分辨率显示图像的图像显示装置。 在该装置中，表示具有已知形状的对象的理论光谱的近似光谱作为参考，并且通过测量已知形状的物体获得的光谱进行傅里叶变换，从而计算测量装置的传递函数， 通过傅里叶变换的两个操作获得的各个值之间的比率，由此基于具有未知形状的对象的测量光谱的传递函数和傅里叶变换值来显示对象的未知形状。 采用通过组合两个高斯分布获得的经修正的高斯分布，其中已知形状的空间频谱的变换值在高频范围内降低，并且其中振荡在高频范围内较小的扩展被采用为近似频谱 表示已知形状的物体的理论光谱，使得可以减小未知形状的空间光谱的高频分量，因此可以以高分辨率显示清晰的图像。
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4.发明授权Ultrasonic flaw detecting apparatus for inspecting multi-layer structure and method thereof 失效用于检查多层结构的超声波探伤仪及其方法
公开(公告)号：US5681995A
公开(公告)日：1997-10-28
申请号：US614184
申请日：1996-03-12
IPC分类号： G01N29/00 , G01N29/04 , G01N29/11 , G01N29/34 , G01N29/44 , G01N29/48 , G01N29/06 , G01N29/10
CPC分类号： G01N29/343 , G01N29/11 , G01N29/348 , G01N29/48 , G01N2291/0231 , G01N2291/044 , G01N2291/103
摘要： An ultrasonic flaw detecting apparatus for efficiently detecting a flaw existing in a deep portion of a multi-layer structure includes a first sensor arranged so as to transmit an ultrasonic wave into a different property layer surrounded by a medium having a different acoustic impedance in the multi-layer structure, a function generator for generating a pulse-shaped sine wave, a power amplifier for amplifying and supplying the pulse-shaped sine wave to the first sensor, a second sensor arranged so as to receive a boundary echo from the different property layer, a first amplifier for amplifying the boundary echo received by the second sensor, an intensity detector for judging the intensity of an amplified signal of the boundary echo, a third sensor arranged so as to receive an echo from a flaw inside a layer in a deep portion of the different property layer, a second amplifier for amplifying the flaw echo received by the third sensor, a recorder for recording the amplified flaw echo signal, and a control unit for reading data from the intensity detector and outputting commands to the function generator and the recorder.
摘要翻译： 一种用于有效检测存在于多层结构的深部中的缺陷的超声波探伤装置，包括：第一传感器，被布置成将超声波传输到由多重声音阻抗不同的介质围绕的不同特性层 层结构，用于产生脉冲形正弦波的函数发生器，用于将脉冲形正弦波放大并提供给第一传感器的功率放大器，布置成接收来自不同特性层的边界回波的第二传感器 用于放大由第二传感器接收的边界回波的第一放大器，用于判断边界回波的放大信号的强度的强度检测器，布置成从深度上的层内的缺陷接收回波的第三传感器 不同属性层的部分，用于放大由第三传感器接收的缺陷回波的第二放大器，用于记录放大的缺陷回波信号si 以及用于从强度检测器读取数据并将命令输出到功能发生器和记录器的控制单元。
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公开(公告)号：US06240784B1
公开(公告)日：2001-06-05
申请号：US08715221
申请日：1996-09-17
申请人： Masahiro Koike , Fuminobu Takahashi , Hideki Inoue , Yosinori Musha , Shuuji Kamimoto , Shinji Naito , Tsukasa Sasaki
发明人： Masahiro Koike , Fuminobu Takahashi , Hideki Inoue , Yosinori Musha , Shuuji Kamimoto , Shinji Naito , Tsukasa Sasaki
IPC分类号： G01N2918
CPC分类号： G01N29/07 , G01N29/30 , G01N2291/0258 , G01N2291/0421 , G01N2291/0422 , G01N2291/2675
摘要： A stress evaluation method for evaluating stress acting on a test piece includes the steps of transmitting acoustic waves including a surface wave, a longitudinal wave, and a shear wave through the test piece; receiving the acoustic waves after they have propagated through the test piece; obtaining acoustic velocities of the surface wave at a non-loaded portion and a loaded portion of the test piece based on the received acoustic waves; evaluating a stress in a surface layer of the test piece based on a difference between the surface wave acoustic velocities at the non-loaded portion and the loaded portion and a predetermined relationship between surface wave acoustic velocities and stresses; obtaining an acoustic velocity of the longitudinal wave at the non-loaded portion based on the received acoustic waves; calculating an acoustic velocity of the shear wave at the loaded portion based on the received acoustic waves and the longitudinal wave acoustic velocity at the non-loaded portion; evaluating an internal average stress in the test piece based on the shear wave acoustic velocity at the loaded portion; evaluating an internal stress distribution in the test piece by correcting a hypothetical internal stress distribution in the test piece based on the stress in the surface layer and the internal average stress; and conducting a diagnosis of the test piece based on the internal stress distribution.
摘要翻译： 用于评价作用在试件上的应力的应力评估方法包括以下步骤：通过所述试件发射包括表面波，纵波和剪切波的声波; 在声波传播通过测试片之后接收声波; 基于接收到的声波获得测试片的未加载部分和加载部分的表面波的声速; 基于无负载部分和负载部分之间的表面波声速之间的差异以及表面波声速和应力之间的预定关系来评估试件的表面层中的应力; 基于所接收的声波获得所述未加载部分处的所述纵波的声速; 基于所接收的声波和未加载部分的纵波声速来计算加载部分处的剪切波的声速; 基于加载部分的剪切波声速来评估试件中的内部平均应力; 通过基于表层中的应力和内部平均应力校正试件中的假想内部应力分布来评估试件中的内部应力分布; 并根据内部应力分布对试件进行诊断。
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公开(公告)号：US5748496A
公开(公告)日：1998-05-05
申请号：US700043
申请日：1996-08-20
申请人： Fuminobu Takahashi , Masahiro Koike , Shunsuke Uchida , Haruo Fujimori , Izumi Yamada , Takaharu Fukuzaki , Makoto Nagase
发明人： Fuminobu Takahashi , Masahiro Koike , Shunsuke Uchida , Haruo Fujimori , Izumi Yamada , Takaharu Fukuzaki , Makoto Nagase
CPC分类号： G21C17/00 , G05B23/0227 , G05B23/0272 , Y10S706/912 , Y10S706/915
摘要： A diagnosis system having sensors for supervising a plant, signal processors for processing signals of the sensors, and a state quantity arithmetic operation unit. The state quantity arithmetic operation unit calculates a quantity of state expressing the environment of the plant on the basis of supervisory information inputted through the signal processors. A state quantity prediction unit predictively calculates a quantity of state after a predetermined time on the basis of the quantity of state, supervisory information and a time change of the quantity of state inputted through the state quantity arithmetic operation unit. A future event prediction unit predicts a future event on the basis of predicted information of the quantity of state inputted through the state quantity prediction unit. An image information processor converts the quantity of state given by the state quantity arithmetic operation unit into image information and indicates the image information on a display unit. An image information processor converts the predicted quantity of state after the predetermined time, given by the state quantity prediction unit, into image information and indicates the image information on a display unit. An image information processor converts the future event predicted by the future event prediction unit into image information and indicates the image information on a display unit.
摘要翻译： 具有用于监视设备的传感器，用于处理传感器的信号的信号处理器以及状态量算术运算单元的诊断系统。 状态量算术运算部根据通过信号处理部输入的监视信息来计算表示工厂环境的状态量。 状态量预测单元基于通过状态量算术运算单元输入的状态量，监视信息和状态量的时间变化，预测计算了预定时间之后的状态量。 未来事件预测单元基于通过状态量预测单元输入的状态量的预测信息来预测未来事件。 图像信息处理器将由状态量算术运算单元给出的状态量转换为图像信息，并在显示单元上指示图像信息。 图像信息处理器将由状态量预测单元给出的预定时间之后的预测状态量转换为图像信息，并在显示单元上指示图像信息。 图像信息处理器将未来事件预测单元预测的未来事件转换成图像信息，并在显示单元上指示图像信息。
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7.发明授权
公开(公告)号：US5663502A
公开(公告)日：1997-09-02
申请号：US544932
申请日：1995-10-18
申请人： Yoshiaki Nagashima , Kenichi Fujiwara , Masao Sato , Fuminobu Takahashi , Masahiro Koike , Hajime Umehara , Yoshihiro Michiguchi
发明人： Yoshiaki Nagashima , Kenichi Fujiwara , Masao Sato , Fuminobu Takahashi , Masahiro Koike , Hajime Umehara , Yoshihiro Michiguchi
CPC分类号： G01N29/46 , G01B17/025 , G01N29/11 , G01N2291/014 , G01N2291/015 , G01N2291/0231 , G01N2291/02854 , G01N2291/0421 , G01N2291/0422 , G01N2291/0428 , G01N2291/044 , G01N2291/048
摘要： Ultrasonic waves from a transmit device are transmitted to an object subject to measurement. A surface reflected wave propagated in a contact medium and reflected at the surface of a tube and bottom surface reflected waves passing through an oxidation layer on the tube and reflected at the inner surface of the tube are convened into electric signals. A feature extracting part 5, in consideration of a correlation relationship of energy with respect to the frequency of a received signal, based on the received signal of ultrasonic waves converted to electric signals, extracts a signal feature data determined beforehand which has a strong correlation relationship with the thickness of a measured part. Based on the extracted signal feature data, a thickness conversion part references a relationship storage part which has stored therein beforehand a function that shows a relationship between the signal feature data and the thickness of the oxidation layer, and obtains the thickness of the oxidation layer.
摘要翻译： 来自发送装置的超声波被发送到被测物体。 在接触介质中传播并在管表面反射的表面反射波和底面反射通过管上的氧化层并在管的内表面反射的反射波被转换为电信号。 考虑到能量相对于接收信号的频率的相关关系的特征提取部分5，基于被转换为电信号的超声波的接收信号，提取预先确定的具有强相关关系的信号特征数据 具有测量部分的厚度。 基于所提取的信号特征数据，厚度转换部分参考预先存储在其中的信息特征数据与氧化层的厚度之间的关系的函数的关系存储部分，并获得氧化层的厚度。
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公开(公告)号：US5557048A
公开(公告)日：1996-09-17
申请号：US313840
申请日：1994-09-28
申请人： Masahiro Koike , Fuminobu Takahashi , Hideki Inoue , Yosinori Musha , Shuuji Kamimoto , Shinji Naito , Tsukasa Sasaki
发明人： Masahiro Koike , Fuminobu Takahashi , Hideki Inoue , Yosinori Musha , Shuuji Kamimoto , Shinji Naito , Tsukasa Sasaki
CPC分类号： G01N29/07 , G01N29/30 , G01N2291/0258 , G01N2291/0421 , G01N2291/0422 , G01N2291/2675
摘要： A stress evaluation method for evaluating stress acting on a test piece includes the steps of transmitting acoustic waves including a surface wave, a longitudinal wave, and a shear wave through the test piece; receiving the acoustic waves after they have propagated through the test piece; obtaining acoustic velocities of the surface wave at a non-loaded portion and a loaded portion of the test piece based on the received acoustic waves; evaluating a stress in a surface layer of the test piece based on a difference between the surface wave acoustic velocities at the non-loaded portion and the loaded portion and a predetermined relationship between surface wave acoustic velocities and stresses; obtaining an acoustic velocity of the longitudinal wave at the non-loaded portion based on the received acoustic waves; calculating an acoustic velocity of the shear wave at the loaded portion based on the received acoustic waves and the longitudinal wave acoustic velocity at the non-loaded portion; evaluating an internal average stress in the test piece based on the shear wave acoustic velocity at the loaded portion; evaluating an internal stress distribution in the test piece by correcting a hypothetical internal stress distribution in the test piece based on the stress in the surface layer and the internal average stress; and conducting a diagnosis of the test piece based on the internal stress distribution.
摘要翻译： 用于评价作用在试件上的应力的应力评估方法包括以下步骤：通过所述试件发射包括表面波，纵波和剪切波的声波; 在声波传播通过测试片之后接收声波; 基于接收到的声波获得测试片的未加载部分和加载部分的表面波的声速; 基于无负载部分和负载部分之间的表面波声速之间的差异以及表面波声速和应力之间的预定关系来评估试件的表面层中的应力; 基于所接收的声波获得所述未加载部分处的所述纵波的声速; 基于所接收的声波和未加载部分的纵波声速来计算加载部分处的剪切波的声速; 基于加载部分的剪切波声速来评估试件中的内部平均应力; 通过基于表层中的应力和内部平均应力校正试件中的假想内部应力分布来评估试件中的内部应力分布; 并根据内部应力分布对试件进行诊断。
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9.发明授权Plant monitoring and diagnosing method and system, as well as plant equipped with the system 失效植物监测和诊断方法和系统，以及配备该系统的植物
公开(公告)号：US5623109A
公开(公告)日：1997-04-22
申请号：US247039
申请日：1994-05-20
CPC分类号： G05B23/0259 , G05B23/0254 , G21C17/00 , G21Y2002/206 , G21Y2002/40 , G21Y2004/40
摘要： Plant operating conditions 1, apparatus operating conditions 2 and environment conditions 3 are accumulated, combined and put together as a set of plant status variables 8 -through a monitor 6, while water chemistry information 4 is accumulated as another set of plant status variables 9. The set of status variables 8 is updated and the past data are accumulated in the set of status variables 9. Periodical inspection data 5 are also accumulated in the set of status variables 9 along with the water chemistry information 4. The set 9 is compressed and stored as a plant chart 11 such as a personal clinical chart. A status variable prediction 12 is performed in consideration of the personality of a plant. Both data of the sets 8 and 10 are compared with each other by comparison means 13. If both the data nearly coincide with each other, the plant is diagnosed to be normal and, if not, it is diagnosed to be abnormal. When the plant is diagnosed to be abnormal, an abnormal apparatus and an abnormal factor are identified.
摘要翻译： 工厂操作条件1，设备操作条件2和环境条件3通过监视器6被累积，组合并作为一组工厂状态变量8组合，而水化学信息4被累积为另一组工厂状态变量9。 更新状态变量8的集合，并将过去的数据累积在状态变量组9中。定期检查数据5也与水化学信息4一起积累在状态变量组9中。组9被压缩，并且 存储为植物图11，如个人临床图表。 考虑到植物的个性来执行状态变量预测12。 通过比较装置13将组8和10的两个数据相互比较。如果这两个数据彼此几乎一致，则诊断为正常，如果不是，则被诊断为异常。 当植物诊断为异常时，识别出异常装置和异常因素。
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公开(公告)号：US4581939A
公开(公告)日：1986-04-15
申请号：US620021
申请日：1984-06-13
申请人： Fuminobu Takahashi
发明人： Fuminobu Takahashi
CPC分类号： G01N29/2418
摘要： The surface of a specimen to be inspected is irradiated with a light having an intensity which varies from a position distant from the material, so that ultrasonic beams are generated in the material to be inspected. A coherent light is also projected onto a fixed surface provided at a given position and onto the surface of said material to be inspected. Vibration generated in the surface of said material due to ultrasonic beams reflected by a defect in the material, is detected in the form of change in phase of the coherent light that is reflected by the surface of the material. The change of difference in phase between the coherent light reflected by said fixed surface and the coherent light reflected by the surface of the material is measured with the lapse of time, in order to detect the flaw.
摘要翻译： 用从远离材料的位置变化的强度的光照射待检查样品的表面，使得在待检查材料中产生超声波束。 相干光也投射到设置在给定位置上的固定表面上并且被投影到待检查材料的表面上。 由材料中的缺陷反射的超声波束在所述材料的表面产生的振动以由材料表面反射的相干光的相位变化的形式被检测。 测量由所述固定表面反射的相干光与由材料表面反射的相干光之间的相位差的变化随时间流逝，以便检测缺陷。
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