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公开(公告)号：US20170074831A1
公开(公告)日：2017-03-16
申请号：US14851739
申请日：2015-09-11
申请人： Jinchi Zhang , C. Tricia Liu , Jason Habermehl
发明人： Jinchi Zhang , C. Tricia Liu , Jason Habermehl
IPC分类号： G01N29/07
CPC分类号： G01N29/07 , G01N29/221 , G01N29/2487 , G01N29/262 , G01N29/28 , G01N2291/011 , G01N2291/0421 , G01N2291/106
摘要： Disclosed is a composite focusing wedge for ultrasonic non-destructive testing/inspection. The composite wedge comprises a base made of machined or cast material, and a lens made of a material which is cast in liquid form and subsequently solidifies. The acoustic velocity in the base material is less than that in the lens material. The castable lens material conforms exactly to a convex machined or cast surface of the base, thereby forming a concave lower surface of the lens. A flat ultrasonic probe is coupled to a planar upper surface of the lens. The minimum distance between the lower concave and upper planar surfaces of the lens is less than one acoustic wavelength in the lens material. The ringdown time of reverberations between the two surfaces is then sufficiently short that there is no interference between the reverberations and signals from sub-surface flaws in the object being tested.
摘要翻译： 公开了一种用于超声波无损检测/检验的复合聚焦楔。 复合楔包括由机械加工或铸造材料制成的基座，以及由以液体形式铸造并随后固化的材料制成的透镜。 基材中的声速小于透镜材料的声速。 铸塑镜片材料精确地符合基底的凸面加工或铸造表面，从而形成透镜的凹下表面。 平面超声波探头连接到透镜的平面上表面。 透镜的下凹面和上平面之间的最小距离小于透镜材料中的一个声波长。 两个表面之间的混响的振铃时间足够短，使得混响和被测物体中的子表面缺陷的信号之间没有干扰。
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公开(公告)号：US09952183B2
公开(公告)日：2018-04-24
申请号：US14851739
申请日：2015-09-11
申请人： Jinchi Zhang , C. Tricia Liu , Jason Habermehl
发明人： Jinchi Zhang , C. Tricia Liu , Jason Habermehl
CPC分类号： G01N29/07 , G01N29/221 , G01N29/2487 , G01N29/262 , G01N29/28 , G01N2291/011 , G01N2291/0421 , G01N2291/106
摘要： Disclosed is a composite focusing wedge for ultrasonic non-destructive testing/inspection. The composite wedge comprises a base made of machined or cast material, and a lens made of a material which is cast in liquid form and subsequently solidifies. The acoustic velocity in the base material is less than that in the lens material. The castable lens material conforms exactly to a convex machined or cast surface of the base, thereby forming a concave lower surface of the lens. A flat ultrasonic probe is coupled to a planar upper surface of the lens. The minimum distance between the lower concave and upper planar surfaces of the lens is less than one acoustic wavelength in the lens material. The ringdown time of reverberations between the two surfaces is then sufficiently short that there is no interference between the reverberations and signals from sub-surface flaws in the object being tested.
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公开(公告)号：US20170089847A1
公开(公告)日：2017-03-30
申请号：US14865827
申请日：2015-09-25
申请人： Michael Drummy , C. Tricia Liu
发明人： Michael Drummy , C. Tricia Liu
IPC分类号： G01N23/223
CPC分类号： G01N23/223 , G01J3/0272 , G01N23/22 , G01N2223/076 , G01N2223/301
摘要： Disclosed is a portable non-destructive testing (NDT) instrument system that transmits spectrum data measured from a test material sample to a remotely located computer for computation of the sample's atomic element composition. The atomic element composition is subsequently transmitted back to the portable instrument for display to the operator in real time. The precision and accuracy of the compositional computation is improved by the greater processing power of the high performance remote computer. The operator of the NDT instrument may choose to use the remote computer to perform part or all of the compositional computation.
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公开(公告)号：US20200003733A1
公开(公告)日：2020-01-02
申请号：US16452135
申请日：2019-06-25
摘要： Disclosed is a flexible coil circuit for a non-destructive inspection probe. The coil circuit is made of multiple layers of thin flexible ceramic material, each ceramic layer having a metallization layer deposited thereon. The circuit is capable of continuous operation at temperatures up to 350° C. The metallized layers are able to slide freely over one another as the probe is flexed, enabling the probe to conform to the circumference of pipes as small as 2 inches in diameter.
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公开(公告)号：US09933375B2
公开(公告)日：2018-04-03
申请号：US14865827
申请日：2015-09-25
申请人： Michael Drummy , C. Tricia Liu
发明人： Michael Drummy , C. Tricia Liu
IPC分类号： G01N23/22 , G01N23/223
CPC分类号： G01N23/223 , G01J3/0272 , G01N23/22 , G01N2223/076 , G01N2223/301
摘要： Disclosed is a portable non-destructive testing (NDT) instrument system that transmits spectrum data measured from a test material sample to a remotely located computer for computation of the sample's atomic element composition. The atomic element composition is subsequently transmitted back to the portable instrument for display to the operator in real time. The precision and accuracy of the compositional computation is improved by the greater processing power of the high performance remote computer. The operator of the NDT instrument may choose to use the remote computer to perform part or all of the compositional computation.
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