公开(公告)号：US20100024556A1

公开(公告)日：2010-02-04

申请号：US12299566

申请日：2006-05-12

申请人： Masayuki Hirose ,  Masashi Kameyama ,  Yukihisa Hasegawa ,  Nobuki Dohi ,  Hong Zhang ,  Mitsuo Okumura

发明人： Masayuki Hirose ,  Masashi Kameyama ,  Yukihisa Hasegawa ,  Nobuki Dohi ,  Hong Zhang ,  Mitsuo Okumura

IPC分类号： G01N29/12

CPC分类号： G01N29/348 ,  G01N29/12 ,  G01N29/46 ,  G01N2291/02854 ,  G01N2291/044 ,  G01N2291/267 ,  G01N2291/2693

摘要： A transmission probe and a reception probe for transmitting and receiving a wideband ultrasonic wave are provided. Each time when the locations of the probes and are moved, a received wave Gj(t) is obtained. Based on a spectrum Fj(f) corresponding to the received wave Gj(t), a narrowband spectrum FAj(f) is extracted. A component wave GAj(t) corresponding to the narrowband spectrum FAj(f) is found by inverse Fourier transformation. A longitudinal wave primary resonance frequency f1 having a relationship with a thickness W (mm) of an inspection target and a primary resonance frequency fS1 of a transverse wave generated by mode conversion are calculated. A comparative display of the component waves GAj(t) is presented using f1, fS1 and sizing coefficients ns1, ns2, ns3 and ns4 for high precision inspection. Based on the measurement point which shows a wave generation in the comparative screen of the component waves GAj(t), it is determined that there is a flaw Z at a certain position inside the inspection target immediately below a line segment connecting the transmission probe and the reception probe.

摘要翻译： 提供了用于发送和接收宽带超声波的传输探针和接收探头。 每次当探针的位置移动时，获得接收波Gj（t）。 基于对应于接收波Gj（t）的频谱Fj（f），提取窄带频谱FAj（f）。 通过傅里叶逆变换得到对应于窄带频谱FAj（f）的分量波GAj（t）。 计算与检查对象的厚度W（mm）和通过模式转换产生的横波的初级共振频率fS1有关的纵波一次谐振频率f1。 使用f1，fS1和尺寸系数ns1，ns2，ns3和ns4来呈现分量波GAj（t）的比较显示，用于高精度检测。 基于表示分量波GAj（t）的比较画面中的波形产生的测量点，确定在检测目标内的特定位置处存在缺陷Z，紧接在连接传输探针和 接收探头。

公开(公告)号：US08074520B2

公开(公告)日：2011-12-13

申请号：US12299566

申请日：2006-05-12

申请人： Masayuki Hirose ,  Masashi Kameyama ,  Yukihisa Hasegawa ,  Nobuki Dohi ,  Hong Zhang ,  Mitsuo Okumura

发明人： Masayuki Hirose ,  Masashi Kameyama ,  Yukihisa Hasegawa ,  Nobuki Dohi ,  Hong Zhang ,  Mitsuo Okumura

IPC分类号： G01N29/12

CPC分类号： G01N29/348 ,  G01N29/12 ,  G01N29/46 ,  G01N2291/02854 ,  G01N2291/044 ,  G01N2291/267 ,  G01N2291/2693

摘要： A transmission probe and a reception probe for transmitting and receiving a wideband ultrasonic wave are provided. Each time when the locations of the probes and are moved, a received wave Gj(t) is obtained. Based on a spectrum Fj(f) corresponding to the received wave Gj(t), a narrowband spectrum FAj(f) is extracted. A component wave GAj(t) corresponding to the narrowband spectrum FAj(f) is found by inverse Fourier transformation. A longitudinal wave primary resonance frequency f1 having a relationship with a thickness W (mm) of an inspection target and a primary resonance frequency fS1 of a transverse wave generated by mode conversion are calculated. A comparative display of the component waves GAj(t) is presented using f1, fS1 and sizing coefficients ns1, ns2, ns3 and ns4 for high precision inspection. Based on the measurement point which shows a wave generation in the comparative screen of the component waves GAj(t), it is determined that there is a flaw Z at a certain position inside the inspection target immediately below a line segment connecting the transmission probe and the reception probe.

摘要翻译： 提供了用于发送和接收宽带超声波的传输探针和接收探头。 每次当探针的位置移动时，获得接收波Gj（t）。 基于对应于接收波Gj（t）的频谱Fj（f），提取窄带频谱FAj（f）。 通过傅里叶逆变换得到对应于窄带频谱FAj（f）的分量波GAj（t）。 计算与检查对象的厚度W（mm）和通过模式转换产生的横波的初级共振频率fS1有关的纵波一次谐振频率f1。 使用f1，fS1和尺寸系数ns1，ns2，ns3和ns4来呈现分量波GAj（t）的比较显示，用于高精度检测。 基于表示分量波GAj（t）的比较画面中的波形产生的测量点，确定在检测目标内的特定位置处存在缺陷Z，紧接在连接传输探针和 接收探头。

公开(公告)号：US20090139333A1

公开(公告)日：2009-06-04

申请号：US11719194

申请日：2004-11-16

申请人： Masayuki Hirose ,  Masashi Kameyama ,  Nobuki Dohi ,  Mitsuo Okumura ,  Hong Zhang

发明人： Masayuki Hirose ,  Masashi Kameyama ,  Nobuki Dohi ,  Mitsuo Okumura ,  Hong Zhang

IPC分类号： G01H13/00

CPC分类号： G01N29/348 ,  G01N29/069 ,  G01N29/11 ,  G01N29/265 ,  G01N29/46 ,  G01N2291/044 ,  G01N2291/102

摘要： A flaw Z with a long probing length inside a probing target is allowed to be probed. The waves other than the probing target waves are removed or reduced, so that the individual difference in the sizing result due to the ability of the measuring personnel is eliminated to improve the precision of the probing. A transmission probe 31 and a receiving probe 32 for transmitting and receiving a wide band ultrasonic wave are included. Each time the positions of the probes 31 and 32 are moved, a received wave Gj(t) is obtained. From a spectrum Fj(f) corresponding to the received wave Gj(t), a narrowband spectrum FAj(f) is extracted. A component wave GAj(t) corresponding to the narrow band spectrum FAj(f) is obtained by inverse Fourier transformation. The component wave GAj(t) is provided for a comparative display using a predetermined sizing coefficient. The position of a flaw Z is determined inside a probing target 30 right below the line segment connecting the centers of the transmission probe 31 and the receiving probe 32, based on at which of the measurement points a wave is generated on the comparative display screen.

摘要翻译： 探测目标内长探测长度的缺陷Z被允许探测。 消除或减少除探测目标波之外的波，从而消除由测量人员的能力引起的施胶结果中的个体差异，以提高探测精度。 包括用于发送和接收宽带超声波的传输探针31和接收探头32。 每次探针31和32的位置移动时，获得接收波Gj（t）。 从对应于接收波Gj（t）的频谱Fj（f），提取窄带频谱FAj（f）。 通过逆傅里叶变换获得与窄带频谱FAj（f）相对应的分量波GAj（t）。 分量波GAj（t）用于使用预定的尺寸系数的比较显示。 基于在比较显示画面上产生波的哪一个测量点，在连接发射探针31和接收探头32的中心的线段的正下方的探测目标30内确定缺陷Z的位置。

公开(公告)号：US07600442B2

公开(公告)日：2009-10-13

申请号：US11719194

申请日：2004-11-16

申请人： Masayuki Hirose ,  Masashi Kameyama ,  Nobuki Dohi ,  Mitsuo Okumura ,  Hong Zhang

发明人： Masayuki Hirose ,  Masashi Kameyama ,  Nobuki Dohi ,  Mitsuo Okumura ,  Hong Zhang

IPC分类号： G01N29/12 ,  G01N29/26

CPC分类号： G01N29/348 ,  G01N29/069 ,  G01N29/11 ,  G01N29/265 ,  G01N29/46 ,  G01N2291/044 ,  G01N2291/102

摘要： A flaw Z with a long probing length inside a probing target is allowed to be probed. The waves other than the probing target waves are removed or reduced, so that the individual difference in the sizing result due to the ability of the measuring personnel is eliminated to improve the precision of the probing. A transmission probe 31 and a receiving probe 32 for transmitting and receiving a wide band ultrasonic wave are included. Each time the positions of the probes 31 and 32 are moved, a received wave Gj(t) is obtained. From a spectrum Fj(f) corresponding to the received wave Gj(t), a narrowband spectrum FAj(f) is extracted. A component wave GAj(t) corresponding to the narrow band spectrum FAj(f) is obtained by inverse Fourier transformation. The component wave GAj(t) is provided for a comparative display using a predetermined sizing coefficient. The position of a flaw Z is determined inside a probing target 30 right below the line segment connecting the centers of the transmission probe 31 and the receiving probe 32, based on at which of the measurement points a wave is generated on the comparative display screen.

摘要翻译： 探测目标内长探测长度的缺陷Z被允许探测。 消除或减少除探测目标波之外的波，从而消除由测量人员的能力引起的施胶结果中的个体差异，以提高探测精度。 包括用于发送和接收宽带超声波的传输探针31和接收探头32。 每次探针31和32的位置移动时，获得接收波Gj（t）。 从对应于接收波Gj（t）的频谱Fj（f），提取窄带频谱FAj（f）。 通过逆傅里叶变换获得与窄带频谱FAj（f）相对应的分量波GAj（t）。 分量波GAj（t）用于使用预定的尺寸系数的比较显示。 基于在比较显示画面上产生波的哪一个测量点，在连接发射探针31和接收探头32的中心的线段的正下方的探测目标30内确定缺陷Z的位置。