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1. 发明授权

US09989663B1 Auto nulling of induction balance metal detector coils 有权
公开(公告)号：US09989663B1
公开(公告)日：2018-06-05
申请号：US15260348
申请日：2016-09-09
申请人： White's Electronics, Inc.
发明人： John L. Earle
IPC分类号： G01V3/10 , G01V3/38
CPC分类号： G01V3/107 , G01V3/38
摘要： A metal detector has a large primary transmit coil, a small primary feedback bucking coil, a first receive coil, and a second receive coil. A variable resistance device is connected to the first and second receive coils. A voltage source is connected to the large primary transmit coil. The voltage source is oppositely connected to the small primary feedback bucking coil. A primary voltage is provided to the large primary transmit coil. A reverse primary voltage is provided to the small primary feedback bucking coil. The small primary feedback bucking coil is positioned near the first and the second receive coils. The metal detection methods and apparatus sums up the signals from the two secondary coils. One is over nulled, the other is under nulled. They are close enough to an inductive null to attenuate the stray coupled signals from the primary driving signal and detecting the object.

2. 发明授权

US09851319B2 Non-contact fluid resistivity measurement 有权
公开(公告)号：US09851319B2
公开(公告)日：2017-12-26
申请号：US14432099
申请日：2013-05-03
申请人： Halliburton Energy Services, Inc.
发明人： Michael Bittar , Jing Li
IPC分类号： G01N27/02 , G01V3/10 , G01V3/18 , G01V3/28 , G01N27/74 , E21B49/08
CPC分类号： G01N27/025 , E21B49/08 , E21B2049/085 , G01N27/74 , G01V3/10 , G01V3/107 , G01V3/18 , G01V3/28
摘要： According to aspects of the present disclosure, systems and methods for measuring fluid resistivity are described herein. An example system may include a non-conductive tube. The non-conductive tube may be filled with a fluid, such as a formation fluid or drilling fluid, whose resistivity needs to be determined. A transmitter may be disposed around an outer surface of the non-conductive tube. A first receiver may be disposed around the outer surface of the non-conductive tube, and a second receiver may be positioned within a bore of the non-conductive tube. The transmitter may generate a primary electromagnetic field in a fluid within the tube, which may in turn generate an eddy current and a secondary electromagnetic field. The first and second receivers may be used to identify the eddy current and the resistivity of the fluid.

3. 发明授权

US09804285B2 Method for monitoring the operation of a metal detection system and metal detection system 有权
公开(公告)号：US09804285B2
公开(公告)日：2017-10-31
申请号：US14666351
申请日：2015-03-24
申请人： Mettler-Toledo Safeline Ltd.
发明人： Stephen McAdam
IPC分类号： G01V3/10
CPC分类号： G01V3/10 , G01V3/107
摘要： A balanced coil system (2) of a metal detection system has a transmitter coil (21) connected to a first transmitter unit (1), to provide a transmitter signal (s1) comprising at least first and second operating frequencies (fTX1, fTX2). First and second receiver coils (22, 23), which compensate one another when the system is in balance, provide output signals (s22, s23) to a receiver unit (3). The respective operating frequencies are applied separately together each with a monitoring frequency (fMON) to inputs of first and second modulation units (52, 53), which provide first and a second modulated monitoring signals (sM1, sM2), each comprising a first or second modulated monitoring frequency (fMM1, fMM2) without a carrier. When applied to a summation unit (54), the modulated monitoring signals result in a combined output signal (sM12) that is applied to a monitoring coil (24), inductively coupled with at least one of the receiver coils.

4. 发明授权

US09404728B2 Sensor for locating metal objects and associated coil 有权
标题翻译：用于定位金属物体和相关线圈的传感器
公开(公告)号：US09404728B2
公开(公告)日：2016-08-02
申请号：US14237945
申请日：2012-08-03
申请人： Gerd Reime
发明人： Gerd Reime
IPC分类号： G01N27/72 , G01B7/14 , G01V3/10
CPC分类号： G01B7/14 , G01N27/72 , G01V3/107
摘要： A sensor for locating metal objects has coils or coil parts which form at least one transmitting coil (5.1) and at least one receiving coil (7.1) which are inductively coupled to one another and are arranged such that said coils partially overlap for the purpose of interaction decoupling, wherein optimum cancellation of the interaction can be achieved. Sensor electronics are provided for energizing the transmitting coil and for evaluating a reception signal (10.6) from the receiving coil. As a result of the fact that the transmitting coil (5.1) and the receiving coil (7.1) substantially have an identical coil shape and are arranged such that said coils are rotated and/or offset with respect to one another, wherein a plurality of symmetrically arranged, overlapping regions (8.4) are formed, a sensor which provides a greater range and extended possibilities for installation in conventional industrial sensor housings is provided.
摘要翻译：用于定位金属物体的传感器具有线圈或线圈部件，其形成至少一个发射线圈（5.1）和至少一个接收线圈（7.1），所述至少一个接收线圈（7.1）感应耦合到彼此并且被布置成使得所述线圈部分重叠，相互作用解耦，其中可以实现相互作用的最佳消除。传感器电子设备用于激励发射线圈并用于从接收线圈评估接收信号（10.6）。由于发射线圈（5.1）和接收线圈（7.1）基本上具有相同的线圈形状并且被布置成使得所述线圈相对于彼此旋转和/或偏移的事实，其中多个对称地提供了布置的重叠区域（8.4），提供了在传统工业传感器外壳中提供更大范围和扩展可能性的传感器。

5. 发明授权

US09304225B2 Method and sensor unit for locating and/or detecting metallic or metal-containing objects and materials 有权
标题翻译：用于定位和/或检测金属或含金属物体和材料的方法和传感器单元
公开(公告)号：US09304225B2
公开(公告)日：2016-04-05
申请号：US14433197
申请日：2013-10-02
申请人： Gerd Reime
发明人： Gerd Reime
IPC分类号： G01N27/72 , G01N27/82 , G01V3/10
CPC分类号： G01V3/10 , G01V3/107
摘要： The method and sensor unit allow the location and detection of metallic or metal-containing objects and materials. A coil arrangement (1.2) comprises a transmission coil and a reception coil, which are arranged on top of one another, wherein the reception coil generates a reception coil output signal. A closed compensation control regulates the reception coil output signal in the receiving coil for compensating changes which occur in the detection range of the reception coil and influence the reception coil. To this end, compensation currents are fed into the receiving branch of the reception coil and are controlled relative to each other such that the reception coil output signal or average values which are detected from the reception coil output signal after demodulation are continuously regulated relative to each other to zero even in the case of metal influence. As a result, a coil with an unregulated transmission current can be used, in which a zero output signal is continuously generated. At the same time, the structural requirements for a compact structure of a sensor arrangement having a one-sided detection range are established.
摘要翻译：该方法和传感器单元允许金属或含金属物体和材料的位置和检测。线圈装置（1.2）包括布置在彼此顶部的传输线圈和接收线圈，其中接收线圈产生接收线圈输出信号。闭合补偿控制调节接收线圈中的接收线圈输出信号，以补偿在接收线圈的检测范围内发生的变化并影响接收线圈。为此，补偿电流被馈送到接收线圈的接收分支中并相对于彼此控制，使得从解调之后的接收线圈输出信号中检测的接收线圈输出信号或平均值相对于每个即使在金属影响的情况下也是零。结果，可以使用其中连续产生零输出信号的具有未调节的传输电流的线圈。同时，建立了具有单侧检测范围的传感器装置的紧凑结构的结构要求。

6. 发明申请

US20150377940A1 COIL ARCHITECTURE FOR INDUCTIVE SENSORS 审中-公开
标题翻译：感应传感器线圈结构
公开(公告)号：US20150377940A1
公开(公告)日：2015-12-31
申请号：US14319844
申请日：2014-06-30
申请人： Rockwell Automation Technologies, Inc.
发明人： Lin Wang , Frederic Boutaud
IPC分类号： G01R27/26 , H01F41/06 , H01F27/30 , H01F27/40 , H01F27/32 , H01F27/28
CPC分类号： G01R27/2611 , G01V3/107 , H01F5/02 , H01F21/02 , H01F27/2823 , H01F27/306 , H01F27/325 , H01F27/402 , H01F41/06 , H01F2005/022
摘要： A bobbin and coil architecture is provided for use in an inductive sensor. The architecture eliminates the need for coil shielding and reduces the sensor's sensitivity to temperature and proximate mounting hardware. In one or more embodiments, all or portions of separate coils are located in a common slot on the bobbin, rather than being segregated into separate slots. In an example configuration, two receiver coils may be located in respective two slots on the bobbin, and a transmitter coil may divided into two substantially equal subsets of windings, with each subset wound together with one of the receiver coils in a common slot. This yields a symmetrical and balanced winding architecture that requires fewer slots relative to designs that segregate all coils into separate slots.
摘要翻译：提供线圈和线圈结构用于电感式传感器。该架构消除了对线圈屏蔽的需要，并降低了传感器对温度和附近安装硬件的敏感度。在一个或多个实施例中，分离的线圈的全部或部分位于线轴上的公共槽中，而不是分离成单独的槽。在示例性配置中，两个接收器线圈可以位于线轴上的相应两个槽中，并且发射器线圈可以被分成两个基本上相等的绕组子集，每个子组与一个接收器线圈一起卷绕在公共槽中。这产生对称和平衡的绕组架构，相对于将所有线圈分离成单独的槽的设计，需要更少的槽。

7. 发明申请

US20150369942A1 LINE LOCATOR WITH A METAL DETECTOR 有权
标题翻译：线定位器与金属探测器
公开(公告)号：US20150369942A1
公开(公告)日：2015-12-24
申请号：US14309398
申请日：2014-06-19
申请人： Vivax-Metrotech
发明人： Stevan Polak , Chunning Zhang
IPC分类号： G01V3/10
CPC分类号： G01V3/107 , G01V3/15
摘要： A line locator system that includes a metal detector is disclosed. In accordance with some embodiments of the invention, the line locator system includes a digital signal processor in a housing; a line locator portion mounted in the housing and coupled to the digital signal processor; and an active metal detector mounted in the housing and coupled to the digital signal processor.
摘要翻译：公开了一种包括金属检测器的线定位系统。根据本发明的一些实施例，线定位器系统在壳体中包括数字信号处理器; 线定位器部分，其安装在所述壳体中并且耦合到所述数字信号处理器; 以及安装在壳体中并耦合到数字信号处理器的有源金属探测器。

8. 发明申请

US20140340088A1 Metal Sensor 有权
标题翻译：金属传感器
公开(公告)号：US20140340088A1
公开(公告)日：2014-11-20
申请号：US14364432
申请日：2012-10-31
申请人： Robert Bosch GmbH
发明人： Andrej Albrecht , Tobias Zibold
IPC分类号： G01V3/10 , G01B7/00
CPC分类号： G01V3/104 , G01B7/003 , G01V3/107
摘要： A metal sensor includes a primary coil arranged in a first plane, a first compensation coil arranged in a second plane, a second compensation coil arranged in a third plane, and a magnetic field sensor arranged in a fourth plane. The first plane, the second plane, the third plane and the fourth plane are oriented parallel to one another and perpendicular to a common z-direction in each case.
摘要翻译：金属传感器包括布置在第一平面中的初级线圈，布置在第二平面中的第一补偿线圈，布置在第三平面中的第二补偿线圈和布置在第四平面中的磁场传感器。在每种情况下，第一平面，第二平面，第三平面和第四平面彼此平行且垂直于共同的z方向。

9. 发明申请

US20140132270A1 QUAD-GRADIENT COILS FOR USE IN LOCATING SYSTEMS 有权
标题翻译：用于定位系统的四级线圈
公开(公告)号：US20140132270A1
公开(公告)日：2014-05-15
申请号：US13676989
申请日：2012-11-14
申请人： Mark S. Olsson , Ray Merewether , Michael J. Martin , Ryan B. Levin
发明人： Mark S. Olsson , Ray Merewether , Michael J. Martin , Ryan B. Levin
IPC分类号： G01V3/10
CPC分类号： G01V3/107 , G01V3/08
摘要： Buried object locators including an omnidirectional antenna array and a quad gradient array are disclosed. A locator display may include information associated with a buried object based on both omnidirectional antenna array signals and quad gradient antenna array signals.
摘要翻译：公开了包括全向天线阵列和四边梯度阵列的掩埋物体定位器。基于全向天线阵列信号和四梯度天线阵列信号，定位器显示器可以包括与埋置物体相关联的信息。

10. 发明授权

US08587301B2 Method for operating a metal detection system and metal detection system 有权
标题翻译：金属检测系统和金属检测系统的操作方法
公开(公告)号：US08587301B2
公开(公告)日：2013-11-19
申请号：US13239212
申请日：2011-09-21
申请人： Max Derungs
发明人： Max Derungs
IPC分类号： G01R33/02 , G01R33/00
CPC分类号： G01V3/107
摘要： A method for operating a metal detection system that comprises a balanced coil system. One embodiment of the method comprises: determining the phase and magnitude of related signals at least for a first metal contaminant for at least two transmitter frequencies and for at least two particle sizes of the first metal contaminant; determining the phase and magnitude of the related signal for a specific product for the at least two transmitter frequencies; comparing information established at least for the first metal contaminant and the information established for the product; determining a transmitter frequency with which signal components of smallest sized particles of the at least first metal contaminant differ sufficiently or most in phase and amplitude from the phase and amplitude of the product signal; and selecting the transmitter frequency for measuring the product. A metal detection apparatus adapted to operate according to an exemplary method is also provided.
摘要翻译：一种用于操作包括平衡线圈系统的金属检测系统的方法。该方法的一个实施例包括：至少对于第一金属污染物至少两个发射器频率以及对于第一金属污染物的至少两个粒度来确定相关信号的相位和幅度; 确定用于所述至少两个发射机频率的特定产品的相关信号的相位和幅度; 比较至少为第一金属污染物建立的信息和为产品确定的信息; 确定所述至少第一金属污染物的最小尺寸颗粒的信号分量与产品信号的相位和幅度在相位和幅度上充分或最大不同的发射器频率; 并选择测量产品的发射机频率。还提供了适于根据示例性方法进行操作的金属检测装置。

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