公开(公告)号：US06347551B1

公开(公告)日：2002-02-19

申请号：US09622728

申请日：2000-11-06

申请人： Roger M. Turpening ,  Zhenya Zhu ,  Joseph R. Matarese ,  Carol E. Lewis

发明人： Roger M. Turpening ,  Zhenya Zhu ,  Joseph R. Matarese ,  Carol E. Lewis

IPC分类号： G01N2904

CPC分类号： G01N29/11 ,  G01N29/0609 ,  G01N29/0672 ,  G01N29/07 ,  G01N29/223 ,  G01N2291/011 ,  G01N2291/015 ,  G01N2291/048 ,  G01N2291/106 ,  G01N2291/2634

摘要： An ultrasonic computed tomography tree or log scanner has a plurality of ultrasonic transceivers carried on a belt (102) sized to encircle a tree (100). The belt includes an apparatus for engaging is tightly around the tree (104). The transceivers are strapped around the tree, and their mutual relative distances are known. Electronic circuitry energizes the transmitters in a known sequence. The signals received at each of the receivers are also collected and analyzed. Computed tomographic techniques analyze the time of arrival of the acoustic pulse that is first to arrive at each receiver. A signal processor generates a two-dimensional image of a slice of the tree (110) at the locus of the belt.

摘要翻译： 超声波计算机断层摄影树或对数扫描器具有多个超声波收发器，所述超声收发器承载在尺寸适于包围树（100）的带（102）上。 带包括用于接合的装置紧紧地围绕树（104）。 收发器捆绑在树上，它们的相对相对距离是已知的。 电子电路以已知的顺序激励发射机。 在每个接收机处接收的信号也被收集和分析。 计算机断层扫描技术分析首先到达每个接收器的声脉冲的到达时间。 信号处理器在带的轨迹处产生树（110）的切片的二维图像。

公开(公告)号：US4059820A

公开(公告)日：1977-11-22

申请号：US634146

申请日：1975-11-21

申请人： Roger M. Turpening

发明人： Roger M. Turpening

IPC分类号： G01V1/108 ,  G01V1/28 ,  G01V1/10

CPC分类号： G01V1/284 ,  G01V1/108

摘要： A device for generating seismic waves in the earth employs an elongated open-ended barrel having its closed end adjustably supported on a base plate for inclinations with respect to the base from about 15.degree. to 30.degree. is also rotatable about an axis normal to the base. A cardboard tube with an interior waterproof coating and transverse dimensions complementary to the barrel is placed into the barrel so that its lower end is spaced from the closed end of the barrel. An explosive charge and a detonator are placed between the end of the barrel and the end of the tube. When the charge is detonated the resulting recoil impacts the base against the earth generating both compressional and shear waves which are recorded at a distance by a transverse seismometer. The barrel is then rotated through 180.degree. about an axis normal to the base and a second firing is made, generating compressional waves with the same phase and magnitude as the first firing and shear waves of equal magnitude but opposite phase. The seismometer records the waves from this second firing and the two recordings are summed to eliminate the shear wave components and subtracted to eliminate the compressional wave components.

摘要翻译： 用于在地球中产生地震波的装置采用细长的开口桶，其封闭端可调节地支撑在基板上，用于相对于基座的倾斜约15°至30°也可绕垂直于基座的轴线旋转 。 具有内部防水涂层和与筒体互补的横向尺寸的纸板管被放置在筒体中，使得其下端与筒体的封闭端部间隔开。 爆炸炸药和雷管放置在枪管的端部和管的端部之间。 当充电被引爆时，所产生的反冲使基座撞击地球，产生由横向地震仪记录在一定距离处的压缩波和剪切波。 然后将筒体围绕垂直于基座的轴线旋转180°，并且进行第二次点火，产生与相同幅度但相反相位的第一次点火和剪切波相同的相位和幅度的压缩波。 地震仪记录来自第二次起火的波，并且将两个记录相加以消除剪切波分量并减去以消除压缩波分量。