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公开(公告)号：US20240272125A1
公开(公告)日：2024-08-15
申请号：US18641925
申请日：2024-04-22
发明人： Akihiro NARA , Hiroki KATAYAMA
CPC分类号： G01N29/4427 , G01N29/0645 , G01N29/069 , G01N29/4436 , G01N29/4445
摘要： An inspection method includes acquiring a plurality of signal strengths that correspond respectively to a plurality of positions, the plurality of positions being included in an inspection region of an inspection target and being arranged along a first direction and a second direction, each of the plurality of signal strengths indicating a signal strength corresponding to a reception of ultrasonic waves emitted into the inspection region. The inspection method further includes generating two-dimensional distribution data representing a relationship between the plurality of positions and the plurality of signal strengths. The inspection method further includes determining, by using the two-dimensional distribution data, a number of positions, among the plurality of positions, that are arranged along the second direction and that are associated with a signal strength included in a first range of signal strengths.
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公开(公告)号：US20180321193A1
公开(公告)日：2018-11-08
申请号：US16016846
申请日：2018-06-25
发明人： Akihiro NARA
IPC分类号： G01N29/04 , G01N29/265 , G01N29/32 , G01N29/38 , G01N29/48
CPC分类号： G01N29/043 , G01N29/04 , G01N29/26 , G01N29/265 , G01N29/32 , G01N29/38 , G01N29/48 , G01N2291/042
摘要： An ultrasonic inspection method that includes arranging an ultrasonic transmission element and an ultrasonic reception element symmetrically in relation to a straight line in a diameter direction orthogonal to the cylinder axis of a cylindrical inspection object, the inspection object being interposed between the ultrasonic transmission element and the ultrasonic reception element; transmitting ultrasonic waves from the ultrasonic transmission element at a plurality of positions in the diameter direction; receiving by the ultrasonic reception element the ultrasonic waves transmitted from the ultrasonic transmission element and transmitted through the inspection object by propagating through the inside of the inspection object; and inspecting the inspection object on the basis of a reception signal of the ultrasonic waves received by the ultrasonic reception element.
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公开(公告)号：US20240068992A1
公开(公告)日：2024-02-29
申请号：US18503264
申请日：2023-11-07
发明人： Akihiro NARA , Takao KOYAMA
CPC分类号： G01N29/221 , G01N29/4436 , G01N2291/103
摘要： An ultrasonic inspection device includes a transmitter configured to transmit an ultrasonic beam to a subject. The ultrasonic inspection device further includes a plurality of receivers that each have a reception surface configured to receive the ultrasonic beam having transmitted through the subject. An area of the reception surface of each of the plurality of receivers is equal to or less than (10×λ)2, where λ is a wavelength of the ultrasonic beam.
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公开(公告)号：US20160003783A1
公开(公告)日：2016-01-07
申请号：US14760713
申请日：2014-01-14
发明人： Akihiro NARA , Yukitoshi SUZUKI , Hidemi TAKAHASHI
IPC分类号： G01N29/24
CPC分类号： G01N29/2437 , G01N29/043 , G01N29/343 , G01N2291/0289 , G01N2291/048 , G01N2291/102
摘要： An ultrasonic inspection device includes a signal generator configured to generate a square wave burst signal, an ultrasonic wave transmitter configured to drive a probe according to the square wave burst signal output from the signal generator and transmit ultrasonic waves toward an inspection subject, an ultrasonic wave receiver configured to receive the ultrasonic waves transmitted toward the inspection subject and propagated through the inspection subject, and a defect determinator configured to determine the presence or absence of a defect in the inspection subject based on a signal from the ultrasonic wave receiver, wherein the square wave burst signal has square waves that continuously alternate due to positive voltages and negative voltages relative to a ground.
摘要翻译： 超声波检查装置包括：信号发生器，其被配置为产生方波突发信号;超声波发射器，被配置为根据从信号发生器输出的方波脉冲串信号来驱动探针，并向检查对象发射超声波;超声波 接收器，被配置为接收朝向检查对象发送并通过检查对象传播的超声波;以及缺陷确定器，被配置为基于来自超声波接收器的信号来确定检查对象中的缺陷的存在或不存在，其中， 波峰信号具有由于相对于地的正电压和负电压而连续交替的方波。
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公开(公告)号：US20240085380A1
公开(公告)日：2024-03-14
申请号：US18516188
申请日：2023-11-21
发明人： Akihiro NARA , Hideyuki YAMADA , Takao KOYAMA
IPC分类号： G01N29/04
CPC分类号： G01N29/04 , G01N2291/0231 , G01N2291/103
摘要： An ultrasonic inspection device is used for inspecting a packaging container having a joined portion including overlapping and joined edges of the packaging container. The ultrasonic inspection device includes a transmitter configured to irradiate ultrasonic waves toward at least a base end portion of the joined portion in a state in which the joined portion protrudes from a surface of an object in a direction orthogonal to the surface, the base end portion being positioned on a side of the object. The ultrasonic inspection device further includes a plurality of receivers configured to receive the ultrasonic waves transmitted through the joined portion.
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公开(公告)号：US20210048412A1
公开(公告)日：2021-02-18
申请号：US17073597
申请日：2020-10-19
发明人： Akihiro NARA
IPC分类号： G01N29/04 , G01N29/48 , G01N29/34 , G01N29/11 , G01N29/44 , G01N29/265 , G01N29/32 , G01N29/38
摘要： An ultrasonic inspection method that includes arranging an ultrasonic transmission element and an ultrasonic reception element symmetrically in relation to a straight line in a diameter direction orthogonal to the cylinder axis of a cylindrical inspection object, the inspection object being interposed between the ultrasonic transmission element and the ultrasonic reception element; transmitting ultrasonic waves from the ultrasonic transmission element at a plurality of positions in the diameter direction; receiving by the ultrasonic reception element the ultrasonic waves transmitted from the ultrasonic transmission element and transmitted through the inspection object by propagating through the inside of the inspection object; and inspecting the inspection object on the basis of a reception signal of the ultrasonic waves received by the ultrasonic reception element.
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公开(公告)号：US20200049664A1
公开(公告)日：2020-02-13
申请号：US16535567
申请日：2019-08-08
发明人： Akihiro NARA
摘要： An ultrasonic wave inspection device includes: a transmitter that outputs ultrasonic waves toward an inspection object; a receiver that receives at least first ultrasonic waves passed through the inspection object, among the ultrasonic waves output from the transmitter; a member that regulates a second propagation path, the second propagation path being a portion of propagation paths through which the output ultrasonic waves reach the receiver, and the second propagation path being different from a first propagation path through which the first ultrasonic waves reach the receiver; and a signal controller that extracts ultrasonic waves of a predetermined time segment from at least the first ultrasonic waves, the predetermined time segment starting from a time when the first ultrasonic waves is received.
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公开(公告)号：US20200049663A1
公开(公告)日：2020-02-13
申请号：US16535525
申请日：2019-08-08
发明人： Akihiro NARA
摘要： An ultrasonic inspection method is a method for inspecting an inspection object including sheet members having peripheral portions. The peripheral portions are joined together at a first location. The sheet members are not joined together at a second location which is adjacent to the first location. The ultrasonic inspection method includes: outputting ultrasonic waves to an inspection target region in the peripheral portions, the inspection target region being set according to a boundary line between the first location and the second location; and receiving the ultrasonic waves that have passed through the inspection target region.
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