公开(公告)号：US09477004B2

公开(公告)日：2016-10-25

申请号：US14162925

申请日：2014-01-24

申请人： Geonics Limited

发明人： Miroslav Bosnar

IPC分类号： G01V3/10 ,  G01V3/165 ,  G01V3/28

CPC分类号： G01V3/104

摘要： Methods and systems for measuring subsurface electrical conductivity, using first and second sensor coils. The second sensor coil has a smaller effective area and a greater bandwidth than the first sensor coil. The first and second sensor coils are positioned with respect to each other to achieve zero or near zero mutual inductance.

摘要翻译： 使用第一和第二传感器线圈测量地下电导率的方法和系统。 第二传感器线圈具有比第一传感器线圈更小的有效面积和更大的带宽。 第一和第二传感器线圈相对于彼此定位以实现零或接近零的互感。

公开(公告)号：US08129987B2

公开(公告)日：2012-03-06

申请号：US12540598

申请日：2009-08-13

申请人： Miroslav Bosnar

发明人： Miroslav Bosnar

IPC分类号： G01R33/12

CPC分类号： G01R33/10

摘要： An electromagnetic detection system comprising: a transmitter loop for generating a primary magnetic field, and a first pair of spaced apart receiver coils and second pair of spaced apart receiver coils for measuring a secondary magnetic field generated in response to the primary magnetic field. The transmitter loop drives the transmitter to generate the primary magnetic field. The system automatically switches between a first signal measuring mode and a second signal measuring mode, wherein in the first signal measuring mode a difference between signals induced in the receiver coils of the first pair is measured to provide a first receiver coil pair difference signal and a difference between the signals induced in the receiver coils of the second pair is measured to provide a second receiver coil pair difference signal, and in the second signal measuring mode a sum of the signals induced in the receiver coils of the first pair is measured to provide a first receiver coil pair sum signal and a sum of the signals induced in the receiver coils of the second pair is measured to provide a second receiver coil pair sum signal, and the difference between the first receiver coil pair signal and the second receiver coil pair signal is determined.

摘要翻译： 一种电磁检测系统，包括：用于产生主磁场的发射器环路，以及用于测量响应于初级磁场产生的次级磁场的第一对间隔开的接收器线圈和第二对间隔开的接收器线圈。 发射机回路驱动发射机产生主磁场。 该系统在第一信号测量模式和第二信号测量模式之间自动切换，其中在第一信号测量模式中，测量在第一对的接收器线圈中感应的信号之间的差异，以提供第一接收器线圈对差值信号和 测量在第二对的接收器线圈中感应的信号之间的差异以提供第二接收器线圈对差值信号，并且在第二信号测量模式中，测量在第一对的接收器线圈中感应的信号之和，以提供 测量第一接收器线圈对和信号和在第二对的接收器线圈中感应的信号之和以提供第二接收器线圈对和信号，以及第一接收器线圈对信号和第二接收器线圈对之间的差 信号被确定。

公开(公告)号：US07919964B2

公开(公告)日：2011-04-05

申请号：US12131498

申请日：2008-06-02

申请人： Miroslav Bosnar

发明人： Miroslav Bosnar

IPC分类号： G01V3/08 ,  G01N27/72 ,  G01R33/12

CPC分类号： G01V11/00 ,  F41H11/136 ,  G01V3/17

摘要： A combined electromagnetic and magnetometer detection system for detecting objects. The system includes a primary electromagnetic transmitter for generating a primary magnetic field; an electromagnetic sensor for sensing secondary magnetic fields generated by a target region subjected to the primary magnetic field; a magnetometer sensor substantially centered at a center of the primary magnetic field; a compensation transmitter for generating a compensating magnetic field that substantially negates the primary magnetic field across the magnetometer sensor; and a signal generator electrically connected to the primary electromagnetic transmitter and the compensation transmitter for driving the transmitters to generate the primary magnetic field and the compensating magnetic field, respectively.

摘要翻译： 用于检测物体的组合电磁和磁力计检测系统。 该系统包括用于产生主磁场的主电磁发射器; 电磁传感器，用于感测由受到初级磁场的目标区域产生的次级磁场; 大体上位于主磁场中心的磁力计传感器; 补偿发射器，用于产生基本上抵消磁力计传感器两端的主磁场的补偿磁场; 电连接到主电磁发射器和补偿发射器的信号发生器，用于驱动发射器分别产生主磁场和补偿磁场。

公开(公告)号：US07759941B2

公开(公告)日：2010-07-20

申请号：US12027594

申请日：2008-02-07

申请人： Miroslav Bosnar

发明人： Miroslav Bosnar

IPC分类号： G01V3/10 ,  G01V3/12

CPC分类号： G01V13/00 ,  G01V3/107 ,  G01V3/15

摘要： A ground conductivity meter that includes a transmitter coil and a receiver coil that are horizontally spaced apart from each other, and a conductivity meter controller connected to the transmitter and receiver coils and including an electronic storage element and at least one processor, the conductivity meter controller being operative to: determine a first conductivity reading in dependence on signals from the receiver coil when the transmitter coil and receiver coil are positioned a predetermined distance above a ground surface in one of a vertical dipole orientation or a horizontal dipole orientation; determine a second conductivity reading in dependence on signals from the receiver coil when the transmitter coil and receiver coil are positioned the predetermined distance above the ground surface in the other of the vertical dipole orientation or horizontal dipole orientation; calculate a correction factor in dependence on the first and second conductivity readings and store the correction factor in the storage element; and determine a plurality of further conductivity readings in dependence on signals from the receiver coil during a site survey, and apply the stored correction factor to the further conductivity readings to produce corrected conductivity readings for the site survey.

摘要翻译： 一种地电导率计，其包括彼此水平间隔开的发射器线圈和接收器线圈，以及连接到发射器和接收器线圈并且包括电子存储元件和至少一个处理器的电导率计控制器，所述电导率计控制器 可操作地：当发射器线圈和接收器线圈以垂直偶极方向或水平偶极方向之一定位在地表面上方预定距离时，根据来自接收器线圈的信号来确定第一电导率读数; 当发射器线圈和接收器线圈位于垂直偶极取向或水平偶极取向中的另一个中的地面之上的预定距离时，根据来自接收器线圈的信号来确定第二电导率读数; 根据第一和第二电导率读数计算校正因子，并将校正因子存储在存储元件中; 并且在现场勘测期间根据来自接收器线圈的信号确定多个另外的电导率读数，并将存储的校正因子应用于另外的电导率读数以产生用于现场勘测的校正的电导率读数。

公开(公告)号：US20090295391A1

公开(公告)日：2009-12-03

申请号：US12131498

申请日：2008-06-02

申请人： Miroslav Bosnar

发明人： Miroslav Bosnar

IPC分类号： G01V3/11

CPC分类号： G01V11/00 ,  F41H11/136 ,  G01V3/17

摘要： A combined electromagnetic and magnetometer detection system for detecting objects. The system includes a primary electromagnetic transmitter for generating a primary magnetic field; an electromagnetic sensor for sensing secondary magnetic fields generated by a target region subjected to the primary magnetic field; a magnetometer sensor substantially centered at a center of the primary magnetic field; a compensation transmitter for generating a compensating magnetic field that substantially negates the primary magnetic field across the magnetometer sensor; and a signal generator electrically connected to the primary electromagnetic transmitter and the compensation transmitter for driving the transmitters to generate the primary magnetic field and the compensating magnetic field, respectively.

摘要翻译： 用于检测物体的组合电磁和磁力计检测系统。 该系统包括用于产生主磁场的主电磁发射器; 电磁传感器，用于感测由受到初级磁场的目标区域产生的次级磁场; 大体上位于主磁场中心的磁力计传感器; 补偿发射器，用于产生基本上抵消磁力计传感器两端的主磁场的补偿磁场; 电连接到主电磁发射器和补偿发射器的信号发生器，用于驱动发射器分别产生主磁场和补偿磁场。

公开(公告)号：US5654637A

公开(公告)日：1997-08-05

申请号：US444799

申请日：1995-05-19

申请人： James Duncan McNeill

发明人： James Duncan McNeill

IPC分类号： G01V3/10 ,  G01V3/11

CPC分类号： G01V3/107

摘要： A method for surveying terrain uses transient magnetic fields transmitted from a coil in plane parallel to and above the terrain, transient voltage response from vertically spaced receiver coils coaxial with and parallel to the transmitter coil being processed to detect highly conductive objects buried in the terrain, with the ratio of the response of the coils optionally being used to estimate the depth of objects. The responses from the coils are scaled in a predetermined ratio to provide cancellation of the response from objects in a layer of terrain at a particular depth, which layer may be at the surface to remove surface responses, or beneath the surface so as to allow surface objects to be differentiated from deeper objects by providing responses of opposite polarity.

摘要翻译： 用于测量地形的方法使用从平行于和高于地形的平面中的线圈传输的瞬态磁场，来自与发射器线圈同轴并与发射器线圈同轴并且与发射器线圈并联的垂直间隔的接收器线圈的瞬态电压响应被处理以检测埋在地形中的高导电物体， 其中线圈的响应的比率可选地用于估计物体的深度。 来自线圈的响应以预定比例缩放以提供对在特定深度的地形层中的物体的响应的抵消，该层可以在表面处以去除表面响应，或者在表面下方，以允许表面 通过提供相反极性的响应，将物体与更深的物体区分开来。

公开(公告)号：US20110037462A1

公开(公告)日：2011-02-17

申请号：US12775060

申请日：2010-05-06

申请人： Miroslav Bosnar

发明人： Miroslav Bosnar

IPC分类号： G01R33/12

CPC分类号： G01R33/10

摘要： An electromagnetic detection system comprising: a transmitter loop for generating a primary magnetic field, and spaced apart receiver coils for measuring a secondary magnetic field generated in response to the primary magnetic field.

摘要翻译： 一种电磁检测系统，包括：用于产生主磁场的发射器环路和用于测量响应于所述主磁场产生的次级磁场的间隔开的接收器线圈。

公开(公告)号：US20090201024A1

公开(公告)日：2009-08-13

申请号：US12027594

申请日：2008-02-07

申请人： Miroslav Bosnar

发明人： Miroslav Bosnar

IPC分类号： G01V3/10 ,  G01V13/00

CPC分类号： G01V13/00 ,  G01V3/107 ,  G01V3/15

摘要： A ground conductivity meter that includes a transmitter coil and a receiver coil that are horizontally spaced apart from each other, and a conductivity meter controller connected to the transmitter and receiver coils and including an electronic storage element and at least one processor, the conductivity meter controller being operative to: determine a first conductivity reading in dependence on signals from the receiver coil when the transmitter coil and receiver coil are positioned a predetermined distance above a ground surface in one of a vertical dipole orientation or a horizontal dipole orientation; determine a second conductivity reading in dependence on signals from the receiver coil when the transmitter coil and receiver coil are positioned the predetermined distance above the ground surface in the other of the vertical dipole orientation or horizontal dipole orientation; calculate a correction factor in dependence on the first and second conductivity readings and store the correction factor in the storage element; and determine a plurality of further conductivity readings in dependence on signals from the receiver coil during a site survey, and apply the stored correction factor to the further conductivity readings to produce corrected conductivity readings for the site survey.

摘要翻译： 一种地电导率计，其包括彼此水平间隔开的发射器线圈和接收器线圈，以及连接到发射器和接收器线圈并且包括电子存储元件和至少一个处理器的电导率计控制器，所述电导率计控制器 可操作地：当发射器线圈和接收器线圈以垂直偶极方向或水平偶极方向之一定位在地表面上方预定距离时，根据来自接收器线圈的信号来确定第一电导率读数; 当发射器线圈和接收器线圈位于垂直偶极取向或水平偶极取向中的另一个中的地面之上的预定距离时，根据来自接收器线圈的信号来确定第二电导率读数; 根据第一和第二电导率读数计算校正因子，并将校正因子存储在存储元件中; 并且在现场勘测期间根据来自接收器线圈的信号确定多个另外的电导率读数，并将存储的校正因子应用于另外的电导率读数以产生用于现场勘测的校正的电导率读数。

公开(公告)号：US4070612A

公开(公告)日：1978-01-24

申请号：US692057

申请日：1976-06-02

申请人： James Duncan McNeill ,  Gary George Black ,  Miroslav Bosnar

发明人： James Duncan McNeill ,  Gary George Black ,  Miroslav Bosnar

IPC分类号： G01V3/10

CPC分类号： G01V3/107

摘要： Apparatus is provided which may be made portable and is calibrated to provide direct readings of terrain conductivity. Transmitter and receiver coils are separated by less than one tenth of the electrical skin depth in terrain having a maximum conductivity to be measured, at the frequency of alternating current signal applied to the transmitter coil, and the signals picked up by the receiver coil are processed to cancel received signal components in phase with the transmitted signal and amplify a received quadrature component so as to provide a direct indication of ground conductivity. The in-phase component received direct from the transmitter coil is cancelled by a preset equal and opposite component, and the in-phase component of the secondary signal received from the terrain is substantially cancelled by a form of negative feedback, in order to avoid swamping of the wanted signal. Optionally, the negative feedback is disabled and the in-phase component is displayed in order to provide an indication of the magnetic susceptibility of the terrain being surveyed.

摘要翻译： 提供了可以进行便携式并被校准以提供地形导电性的直接读数的装置。 在施加到发射机线圈的交流信号的频率处，发射器和接收器线圈被分开小于具有要测量的最大电导率的地形中的电皮肤深度的十分之一，并且处理由接收器线圈拾取的信号 以与所发送的信号同相取消接收的信号分量，并放大接收到的正交分量，以便提供地面导电性的直接指示。 从发射机线圈直接接收的同相分量被预置的相等和相反的分量抵消，并且从地形接收的次级信号的同相分量基本上被负反馈的形式消除，以便避免波动 的有用信号。 可选地，负反馈被禁用并且显示同相分量以便提供被测地形的磁化率的指示。

公开(公告)号：US20150048833A1

公开(公告)日：2015-02-19

申请号：US14162925

申请日：2014-01-24

申请人： Geonics Limited

发明人： Miroslav Bosnar

IPC分类号： G01V3/10

CPC分类号： G01V3/104

摘要： Methods and systems for measuring subsurface electrical conductivity, using first and second sensor coils. The second sensor coil has a smaller effective area and a greater bandwidth than the first sensor coil. The first and second sensor coils are positioned with respect to each other to achieve zero or near zero mutual inductance.

摘要翻译： 使用第一和第二传感器线圈测量地下电导率的方法和系统。 第二传感器线圈具有比第一传感器线圈更小的有效面积和更大的带宽。 第一和第二传感器线圈相对于彼此定位以实现零或接近零的互感。