公开(公告)号：US06366191B1

公开(公告)日：2002-04-02

申请号：US09594146

申请日：2000-06-15

Applicant: Paul A. Cloutier ,  Timothy I. Marzolf ,  Delbert R. Oehme ,  Ronald F. Stebbings

Inventor： Paul A. Cloutier ,  Timothy I. Marzolf ,  Delbert R. Oehme ,  Ronald F. Stebbings

IPC: H01F702

CPC classification number: G02B6/447 ,  H01B13/34 ,  H01B13/341 ,  H01F13/00 ,  H02G9/00 ,  H02G9/02

Abstract: Ferromagnetic material of an elongated object, such as a fiber optic cable, is permanently magnetized in a manner that results in a substantially cylindrically symmetric radial external magnetic field around the object. The produced magnetization is substantially greater than natural magnetization of the ferromagnetic material by the earth's magnetic field. The radial external magnetic field varies periodically along the length of the object. If the wavelength of the periodic variations is long compared to the width (diameter) of the object, the strength of the radial external magnetic field decreases approximately inversely with distance from the object for distances that are small compared to the wavelength. The periodic magnetic field variations may have a square wave or a sine wave pattern, for example. Magnetization of the ferromagnetic material is achieved by a magnetizer having pairs of counter-rotating mirror-image magnets adjacent to an object that is moved longitudinally relative to the magnets. By virtue of the magnetization, buried objects, such as pipes and cables can be detected magnetically at substantial distances from the objects.

公开(公告)号：US20080198063A1

公开(公告)日：2008-08-21

申请号：US12076819

申请日：2008-03-24

Applicant: Paul A. Cloutier ,  Delbert R. Oehme

Inventor： Paul A. Cloutier ,  Delbert R. Oehme

IPC: G01S13/04

CPC classification number: G01V3/15

Abstract: Continuous-wave radiation is used to detect a target hidden behind a surface. In an embodiment, a transmitter directs a beam of continuous-wave microwave radiation from a transmitting location, and reflected radiation from the target is received at first and second receiving locations closer to the surface than the transmitting location. The transmitting and receiving locations have spatial relationships such that the phase of reflected radiation received at one receiving location is in quadrature with the phase of reflected radiation received at the other receiving location. In an embodiment, direct transmitted radiation is received at the receiving locations in quadrature.

Abstract translation: 连续波辐射用于检测隐藏在表面后面的目标。 在一个实施例中，发射机引导来自发射位置的连续波微波辐射束，并且来自目标的反射辐射在比发射位置更靠近表面的第一和第二接收位置处被接收。 发射和接收位置具有空间关系，使得在一个接收位置处接收的反射辐射的相位与在另一个接收位置处接收的反射辐射的相位正交。 在一个实施例中，在正交的接收位置处接收直接发射的辐射。

公开(公告)号：US5418460A

公开(公告)日：1995-05-23

申请号：US915660

申请日：1992-07-21

Applicant: Paul A. Cloutier ,  Delbert R. Oehme

Inventor： Paul A. Cloutier ,  Delbert R. Oehme

IPC: G01R33/02 ,  G01B7/14

CPC classification number: G01R33/0206

Abstract: A triaxial AC magnetic field analyzer/dosimeter instrument measures the field strength of three mutually orthogonal AC magnetic field components at a plurality of different frequencies in a frequency range of interest and stores corresponding data which may be processed to indicate the field strength at each of the frequencies and/or the sum of the field strengths over the frequency range of interest. The instrument is computer controlled and comprises three measurement channels corresponding to respective magnetic field components, each channel including a sensor coil, a clock controlled, switched capacitor, bandpass filter, and a TRMS detector. The passband of each filter is swept across the desired frequency range by a varying frequency clock.

Abstract translation: 三轴交流磁场分析仪/剂量计仪器测量感兴趣的频率范围内的多个不同频率处的三个相互正交的交流磁场分量的场强，并且存储对应的数据，该数据可被处理以指示每一个的场强 频率和/或感兴趣的频率范围内的场强之和。 仪器由计算机控制，包括对应于各个磁场分量的三个测量通道，每个通道包括传感器线圈，时钟控制，开关电容器，带通滤波器和TRMS检测器。 每个滤波器的通带通过变化的频率时钟扫过期望的频率范围。

公开(公告)号：US07898456B2

公开(公告)日：2011-03-01

申请号：US12388672

申请日：2009-02-19

Applicant: Paul A. Cloutier ,  Delbert R. Oehme

Inventor： Paul A. Cloutier ,  Delbert R. Oehme

IPC: G01S13/04

CPC classification number: G01S13/887 ,  G01S7/032 ,  G01S13/32 ,  G01S13/885 ,  H01Q1/04 ,  H01Q11/10 ,  H01Q21/08

Abstract: An apparatus and method for detecting and locating hidden objects employs a symmetrical array of five directional antennas, including a central transmit antenna and a pair of receive antennas at each side of the transmit antenna, respectively. All of the antennas are pointed in the same general direction toward an object field of interest. The transmit antenna radiates a beam of high-frequency electromagnetic energy, and the receive antennas receive high-frequency electromagnetic energy returned by hidden objects. Each pair of receive antennas has an associated phase detector, the output of which represents the phase difference between receive antenna signals corresponding to the received electromagnetic energy. A circuit determines when the outputs of the phase detectors represent predetermined phase differences and operates indicator devices.

Abstract translation: 用于检测和定位隐藏对象的装置和方法分别采用五个定向天线的对称阵列，其包括分别在发射天线的每一侧的中心发射天线和一对接收天线。 所有的天线都指向与感兴趣的物体场相同的大体方向。 发射天线辐射高频电磁能束，接收天线接收隐藏物体返回的高频电磁能。 每对接收天线具有相关联的相位检测器，其输出表示对应于所接收的电磁能的接收天线信号之间的相位差。 电路确定相位检测器的输出何时表示预定的相位差并且操作指示器装置。

公开(公告)号：US06369679B1

公开(公告)日：2002-04-09

申请号：US09292002

申请日：1999-04-15

Applicant: Paul A. Cloutier ,  Timothy I. Marzolf ,  Delbert R. Oehme ,  Ronald F. Stebbings

Inventor： Paul A. Cloutier ,  Timothy I. Marzolf ,  Delbert R. Oehme ,  Ronald F. Stebbings

IPC: H01F1300

CPC classification number: G02B6/447 ,  H01B13/34 ,  H01B13/341 ,  H01F13/00 ,  H02G9/00 ,  H02G9/02

Abstract: Ferromagnetic material of an elongated object, such as a fiber optic cable, is permanently magnetized in a manner that results in a substantially cylindrically symmetric radial external magnetic field around the object. The produced magnetization is substantially greater than natural magnetization of the ferromagnetic material by the earth's magnetic field. The radial external magnetic field varies periodically along the length of the object. If the wavelength of the periodic variations is long compared to the width (diameter) of the object, the strength of the radial external magnetic field decreases approximately inversely with distance from the object for distances that are small compared to the wavelength. The periodic magnetic field variations may have a square wave or a sine wave pattern, for example. Magnetization of the ferromagnetic material is achieved by a magnetizer having pairs of counter-rotating mirror-image magnets adjacent to an object that is moved longitudinally relative to the magnets. By virtue of the magnetization, buried objects, such as pipes and cables can be detected magnetically at substantial distances from the objects.

Abstract translation: 诸如光纤电缆的细长物体的铁磁材料以导致物体周围的基本上圆柱对称的径向外部磁场的方式被永久地磁化。 产生的磁化强度远大于地球磁场对铁磁材料的自然磁化强度。 径向外部磁场沿着物体的长度周期性地变化。 如果与物体的宽度（直径）相比，周期性变化的波长较长，那么径向外部磁场的强度与距物体的距离相比，与距波长相比较小的距离大致相反。 例如，周期性磁场变化可以具有方波或正弦波模式。 铁磁材料的磁化通过一个磁化器来实现，该磁化器具有与相对于磁体纵向移动的物体相邻的反向旋转镜像磁体对。 借助于磁化，可以在与物体相当距离处磁性地检测诸如管道和电缆的掩埋物体。

公开(公告)号：US07535407B2

公开(公告)日：2009-05-19

申请号：US12076819

申请日：2008-03-24

Applicant: Paul A. Cloutier ,  Delbert R. Oehme

Inventor： Paul A. Cloutier ,  Delbert R. Oehme

IPC: G01V3/08

CPC classification number: G01V3/15

Abstract: Continuous-wave radiation is used to detect a target hidden behind a surface. In an embodiment, a transmitter directs a beam of continuous-wave microwave radiation from a transmitting location, and reflected radiation from the target is received at first and second receiving locations closer to the surface than the transmitting location. The transmitting and receiving locations have spatial relationships such that the phase of reflected radiation received at one receiving location is in quadrature with the phase of reflected radiation received at the other receiving location. In an embodiment, direct transmitted radiation is received at the receiving locations in quadrature.

Abstract translation: 连续波辐射用于检测隐藏在表面后面的目标。 在一个实施例中，发射机引导来自发射位置的连续波微波辐射束，并且来自目标的反射辐射在比发射位置更靠近表面的第一和第二接收位置处被接收。 发射和接收位置具有空间关系，使得在一个接收位置处接收的反射辐射的相位与在另一个接收位置处接收的反射辐射的相位正交。 在一个实施例中，在正交的接收位置处接收直接发射的辐射。

公开(公告)号：US07362260B2

公开(公告)日：2008-04-22

申请号：US10527798

申请日：2003-09-25

Applicant: Paul A. Cloutier ,  Delbert R. Oehme

Inventor： Paul A. Cloutier ,  Delbert R. Oehme

IPC: G01V3/08

CPC classification number: G01V3/15 ,  G01S13/34 ,  G01S13/88 ,  G01S13/885 ,  H01Q11/105

Abstract: Continuous-wave radiation is used to detect a target hidden behind a surface. In an embodiment, a transmitter directs a beam of continuous-wave microwave radiation from a transmitting location, and reflected radiation from the target is received at first and second receiving locations closer to the surface than the transmitting location. The transmitting and receiving locations have spatial relationships such that the phase of reflected radiation received at one receiving location is in quadrature with the phase of reflected radiation received at the other receiving location. In an embodiment, direct transmitted radiation is received at the receiving locations in quadrature.

Abstract translation: 连续波辐射用于检测隐藏在表面后面的目标。 在一个实施例中，发射机引导来自发射位置的连续波微波辐射束，并且来自目标的反射辐射在比发射位置更靠近表面的第一和第二接收位置处被接收。 发射和接收位置具有空间关系，使得在一个接收位置处接收的反射辐射的相位与在另一个接收位置处接收的反射辐射的相位正交。 在一个实施例中，在正交的接收位置处接收直接发射的辐射。

公开(公告)号：US4427943A

公开(公告)日：1984-01-24

申请号：US436815

申请日：1982-10-26

Applicant: Paul A. Cloutier ,  Delbert R. Oehme ,  Ronald F. Stebbings

Inventor： Paul A. Cloutier ,  Delbert R. Oehme ,  Ronald F. Stebbings

IPC: G01R33/022 ,  G01V3/08

CPC classification number: G01V3/081 ,  G01R33/022

Abstract: At least one pair of vector gradiometers is employed to locate (and track) magnetic objects or sources. A first signal, S, is produced as a function of the difference in the absolute values of output signals L and R from left and right gradiometers, respectively. The form of the signal depends upon whether the magnetic field associated with the object or source is symmetric or anti-symmetric and is selected in accordance with observations made as the gradiometer pair passes over the magnetic object or source. A second signal, V, is produced as a function of the sum of the absolute values of signals L and R and represents total strength. A third signal, H=S/V, is produced to determine whether the observer is to the left or to the right of the magnetic object or source and is independent of the magnetic field strength and polarity of the magnetic field, even where the polarity and magnetic field strength vary with distance along a linear source. Compensation is employed for gradiometer sensor misalignment and temperature variations, and extraneous magnetic fields are nulled.

Abstract translation: 使用至少一对矢量梯度计来定位（和跟踪）磁性物体或源。 作为来自左右梯度计的输出信号L和R的绝对值的差分的函数产生第一信号S。 信号的形式取决于与物体或源相关联的磁场是对称的还是反对称的，并且是根据随着梯度计对通过磁性物体或源的观察而选择的。 作为信号L和R的绝对值之和的函数产生第二信号V，并表示总强度。 产生第三信号H = S / V，以确定观察者是否在磁性物体或源的左侧或右侧，并且与磁场的磁场强度和极性无关，即使在极性 并且磁场强度随着沿着线性源的距离而变化。 补偿用于梯度传感器不对准和温度变化，外部磁场无效。