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1. 发明申请

US20100289496A1 Dipole Locator Using Multiple Measurement Points 有权
标题翻译：使用多个测量点的偶极定位器
公开(公告)号：US20100289496A1
公开(公告)日：2010-11-18
申请号：US12844886
申请日：2010-07-28
申请人： Scott B. Cole , Michael F. Gard , David R. Brown , Bradley S. Marshall
发明人： Scott B. Cole , Michael F. Gard , David R. Brown , Bradley S. Marshall
IPC分类号： G01V3/10
CPC分类号： G01V3/165 , E21B47/02224 , G01V3/081 , H01Q1/04 , H01Q7/00 , H01Q21/24
摘要： A receiver and tracking system for identifying a location of a magnetic field source. In a preferred embodiment a plurality of tri-axial antennas are positioned at three distinct points on a receiver frame. Each antenna detects a magnetic field from a source and a processor is used to determine a location of the source relative to the frame using the antenna signals. Each tri-axial antenna comprises three windings in each of three channels defined by a support structure. The windings each define an aperture area. The windings have substantially identical aperture areas and have a common center point. The receiver may to display to the operator the relative location of the field source or may direct the operator to a spot directly above the field source.
摘要翻译：用于识别磁场源的位置的接收器和跟踪系统。在优选实施例中，多个三轴天线位于接收机框架上的三个不同点处。每个天线检测来自源的磁场，并且处理器用于使用天线信号来确定源相对于帧的位置。每个三轴天线包括由支撑结构限定的三个通道中的每一个中的三个绕组。绕组各限定孔径区域。绕组具有基本相同的孔径区域并且具有共同的中心点。接收器可以向操作者显示场源的相对位置，或者可以将操作者指向场源上方的位置。

2. 发明授权

US08497684B2 Dipole locator using multiple measurement points 有权
公开(公告)号：US08497684B2
公开(公告)日：2013-07-30
申请号：US12844886
申请日：2010-07-28
申请人： Scott B. Cole , Michael F. Gard , David R. Brown , Bradley S. Marshall
发明人： Scott B. Cole , Michael F. Gard , David R. Brown , Bradley S. Marshall
IPC分类号： G01V3/08
CPC分类号： G01V3/165 , E21B47/02224 , G01V3/081 , H01Q1/04 , H01Q7/00 , H01Q21/24
摘要： A receiver and tracking system for identifying a location of a magnetic field source. In a preferred embodiment a plurality of tri-axial antennas are positioned at three distinct points on a receiver frame. Each antenna detects a magnetic field from a source and a processor is used to determine a location of the source relative to the frame using the antenna signals. Each tri-axial antenna comprises three windings in each of three channels defined by a support structure. The windings each define an aperture area. The windings have substantially identical aperture areas and have a common center point. The receiver may to display to the operator the relative location of the field source or may direct the operator to a spot directly above the field source.

3. 发明授权

US07786731B2 Dipole locator using multiple measurement points 有权
标题翻译：偶极定位器使用多个测量点
公开(公告)号：US07786731B2
公开(公告)日：2010-08-31
申请号：US11382644
申请日：2006-05-10
申请人： Scott B. Cole , Michael F. Gard , David R. Brown , Bradley S. Marshall
发明人： Scott B. Cole , Michael F. Gard , David R. Brown , Bradley S. Marshall
IPC分类号： G01V3/08
CPC分类号： G01V3/165 , E21B47/02224 , G01V3/081 , H01Q1/04 , H01Q7/00 , H01Q21/24
摘要： A receiver and tracking system for identifying a location of a magnetic field source. In a preferred embodiment a plurality of tri-axial antennas are positioned at three distinct points on a receiver frame. Each antenna detects a magnetic field from a source and a processor is used to determine a location of the source relative to the frame using the antenna signals. Each tri-axial antenna comprises three windings in each of three channels defined by a support structure. The windings each define an aperture area. The windings have substantially identical aperture areas and have a common center point. The receiver may to display to the operator the relative location of the field source or may direct the operator to a spot directly above the field source.
摘要翻译：用于识别磁场源的位置的接收器和跟踪系统。在优选实施例中，多个三轴天线位于接收机框架上的三个不同点处。每个天线检测来自源的磁场，并且处理器用于使用天线信号确定源相对于帧的位置。每个三轴天线包括由支撑结构限定的三个通道中的每一个中的三个绕组。绕组各限定孔径区域。绕组具有基本相同的孔径区域并且具有共同的中心点。接收器可以向操作者显示场源的相对位置，或者可以将操作者指向场源上方的位置。

4. 发明授权

US08305229B1 System for wireless communication along a drill string 有权
标题翻译：用于沿钻柱进行无线通信的系统
公开(公告)号：US08305229B1
公开(公告)日：2012-11-06
申请号：US12689148
申请日：2010-01-18
申请人： Michael F. Gard
发明人： Michael F. Gard
IPC分类号： G01V3/00
CPC分类号： G01V11/002 , E21B47/122
摘要： A wireless communication and drill string telemetry system. The communication system is used for communicating information along a drill string between a boring tool and a boring machine. An insulator assembly provides an electrically insulated gap between the drill string communication path and a soil engaging electrode for the electrical return path. A transmitter assembly includes a data transmitter for encoding and transmitting a data signal. A signal coupler couples the data signal to the drill string and provides a controlled electrical connection between the drill string communication path and the soil engaging electrode. The signal coupler comprises a transformer and a current regulating circuit to adjust a voltage across the transformer's primary winding. A receiver assembly is disposed proximate the drilling machine and includes a toroidal pickup coil and a signal processing assembly. The pickup coil has an annulus and is positioned such that the drill string communication path passes through the annulus. The pickup coil produces a signal voltage in response to a signal current on the drill string that the signal processing assembly processes to extract the data signal.
摘要翻译：无线通信和钻弦遥测系统。通信系统用于沿着钻孔工具和钻孔机之间的钻柱传送信息。绝缘体组件在钻柱连通路径和用于电返回路径的土壤接合电极之间提供电绝缘的间隙。发射器组件包括用于对数据信号进行编码和传输的数据发射器。信号耦合器将数据信号耦合到钻柱，并且在钻柱连通路径和土壤接合电极之间提供受控的电连接。信号耦合器包括变压器和电流调节电路，用于调整变压器初级绕组两端的电压。接收器组件设置在钻孔机附近并且包括环形拾取线圈和信号处理组件。拾取线圈具有环形并且被定位成使得钻柱连通路径穿过环形空间。拾取线圈响应于钻柱上的信号电流产生信号电压，信号处理组件处理以提取数据信号。

5. 发明授权

US07663373B1 Determining beacon location using magnetic field ratios 有权
标题翻译：使用磁场比确定信标位置
公开(公告)号：US07663373B1
公开(公告)日：2010-02-16
申请号：US11958167
申请日：2007-12-17
申请人： Michael F. Gard , Kody D. Mason , Floyd R. Gunsaulis
发明人： Michael F. Gard , Kody D. Mason , Floyd R. Gunsaulis
IPC分类号： G01V3/18 , G01V3/08 , G01V3/26
CPC分类号： G01V3/08 , G01V3/081
摘要： A method and system for identifying a location of a magnetic field source. A total magnetic field is measured during a calibration routine prior to a drilling procedure. During the drilling procedure, a magnetic field measurement is obtained. Using a ratio of the measured magnetic field and the calibrated field, a set of possible angles and distances is calculated. After the source is advanced a known distance, a second magnetic field measurement is obtained. A second ratio is calculated and a second set of possible angles and distances is calculated. The relative location of the source is then determined using the first set and second set of values, along with the known distance and a pitch angle of the source.
摘要翻译：一种用于识别磁场源的位置的方法和系统。在钻井程序之前的校准程序期间测量总磁场。在钻孔过程中，获得磁场测量。使用测量的磁场和校准场的比率，计算一组可能的角度和距离。在源提前已知距离之后，获得第二磁场测量。计算第二比例并计算第二组可能的角度和距离。然后使用第一组和第二组值以及源的已知距离和俯仰角来确定源的相对位置。

6. 发明授权

US06411094B1 System and method for determining orientation to an underground object 失效
标题翻译：确定地下物体方向的系统和方法
公开(公告)号：US06411094B1
公开(公告)日：2002-06-25
申请号：US08999166
申请日：1997-12-30
申请人： Michael F. Gard , Jian Jin
发明人： Michael F. Gard , Jian Jin
IPC分类号： G01V328
CPC分类号： G01V3/08 , E21B44/00 , E21B47/0905 , Y10T307/724
摘要： A system and method use magnetic field sensing to detect underground objects for strike avoidance. The system detects magnetic field components for both passive distortions in the magnetic field indicative of a ferromagnetic object and active magnetic fields that are impressed on an object by a signal generator. A detection module has a magnetic sensor assembly that detects the magnetic field components. The magnetic field component data is transferred through a multiplexer to an analog/digital converter to a processor. Pitch angle data from a pitch sensor and roll angle data from a roll sensor also may be transferred to the processor. The data is processed by the processor to determine the orientation of the detection module with respect to the object. The detection module may be installed in an underground boring tool or a trenching assembly.
摘要翻译：系统和方法使用磁场感测来检测地下物体以防止罢工。系统检测表示铁磁物体的磁场中的无源失真和由信号发生器施加在物体上的有源磁场的磁场分量。检测模块具有检测磁场分量的磁传感器组件。磁场分量数据通过多路复用器传送到模拟/数字转换器到处理器。来自音调传感器的俯仰角数据和来自辊传感器的侧倾角数据也可以传送到处理器。数据由处理器处理以确定检测模块相对于对象的取向。检测模块可以安装在地下钻孔工具或下料组件中。

7. 发明授权

US5550889A Alignment of an x-ray tube focal spot using a deflection coil 失效
标题翻译：使用偏转线圈对x射线管焦点进行对准
公开(公告)号：US5550889A
公开(公告)日：1996-08-27
申请号：US345082
申请日：1994-11-28
申请人： Michael F. Gard , Stephen W. Gravelle , Jiang Hsieh , Quan N. Lu , John W. Newman , Thomas L. Toth , Michael A. Wu
发明人： Michael F. Gard , Stephen W. Gravelle , Jiang Hsieh , Quan N. Lu , John W. Newman , Thomas L. Toth , Michael A. Wu
IPC分类号： H01J35/14 , H01J35/26 , H01J35/30 , H05G1/26 , H05G1/52
CPC分类号： H05G1/52 , H01J35/14 , H01J35/26 , H01J35/30 , H05G1/26
摘要： Precise alignment of the focal spot position on an x-ray CT system is achieved using a deflection coil that produces a magnetic field which acts on the electron beam path in the x-ray tube. A variable current power supply drives the deflection coil and is controlled by input signals to align the focal spot at a static reference position, to correct for focal spot drift between scans, and to wobble the focal spot position during a scan or between scans.
摘要翻译：使用偏转线圈实现x射线CT系统上的焦点位置的精确对准，该偏转线圈产生作用在x射线管中的电子束路径上的磁场。可变电流电源驱动偏转线圈并由输入信号控制，以将焦点对准静态参考位置，以校正扫描之间的焦斑漂移，并在扫描期间或扫描之间摆动焦点位置。

8. 发明授权

US4853616A Detection of water saturation in insulation at cased road crossings 失效
标题翻译：检测套管路口绝缘水饱和度
公开(公告)号：US4853616A
公开(公告)日：1989-08-01
申请号：US222453
申请日：1988-07-21
申请人： Michael F. Gard
发明人： Michael F. Gard
IPC分类号： G01N27/04 , G01R27/02 , G01R27/14
CPC分类号： G01R27/025 , G01N27/048 , G01R27/14
摘要： A method for detecting water saturation of thermal insulation located between a flowline and metal sheathing at a location where the flowline is positioned in a metal casing. Electrical resistance measurements are made between the metal sheathing and flowline, between the casing and the sheathing, and between the casing and the flowline. The resistance values and/or direct voltage and current measurements are used to determine actual resistance through the insulation as an indication of water saturation.
摘要翻译：一种用于检测位于流动线位于金属壳体中的位置处的流线和金属护套之间的绝热水饱和度的方法。在金属护套和流线之间，壳体和护套之间以及套管和流线之间进行电阻测量。电阻值和/或直流电压和电流测量用于确定通过绝缘的实际电阻作为水饱和度的指示。

9. 发明授权

US4692909A Adaptive seismic signal processor 失效
标题翻译：自适应地震信号处理器
公开(公告)号：US4692909A
公开(公告)日：1987-09-08
申请号：US626491
申请日：1984-06-29
申请人： Michael F. Gard , Ralph E. Warmack , Kyong H. Lee , Robert H. Maschhoff
发明人： Michael F. Gard , Ralph E. Warmack , Kyong H. Lee , Robert H. Maschhoff
IPC分类号： G01V1/24 , G01V1/36 , G01V1/22
CPC分类号： G01V1/364 , G01V1/242 , G01V2210/21
摘要： In portable seismic data acquisition units, an adaptive seismic signal processor and method for resampling and bandpassing selected frequencies of an input digital signal. The adaptive seismic signal processor and method provide an output digital signal having a frequency domain and resampling rate which can be selected from one of a plurality of predetermined frequency domains and sampling rates during the course of acquisition of the input digital signal without substantial loss or deterioration thereof.
摘要翻译：在便携式地震数据采集单元中，采用自适应地震信号处理器和对输入数字信号的选定频率进行重采样和带通的方法。自适应地震信号处理器和方法提供具有频域和重采样速率的输出数字信号，该频域和重采样速率可以在输入数字信号的采集过程中从多个预定频域中的一个和采样率中选择，而没有显着的损耗或劣化其中。

10. 发明申请

US20090278542A1 Method For Detection Of Signal Source Using Estimation Of Noise Statistics 有权
标题翻译：使用噪声统计估计的信号源检测方法
公开(公告)号：US20090278542A1
公开(公告)日：2009-11-12
申请号：US12296027
申请日：2007-04-04
申请人： Michael F. Gard , Scott Bryan Cole
发明人： Michael F. Gard , Scott Bryan Cole
IPC分类号： G01V3/12
CPC分类号： G01V3/15
摘要： A method for noise signal analysis and communication with an underground transmitter. The method comprises the steps of measuring a noise floor when no signal is transmitted from a transmitter, detecting a signal when the transmitter is transmitting, and estimating the noise free component of the signal by removing the noise floor measurement. The measurement of the noise floor and detecting the signal from the transmitter may be done using a root mean square technique. The noise floor measurement can be removed from the measured signal by subtracting the noise floor measurement from the measured signal or alternatively by calculating the square root of the difference between the square of the measured signal and the square of the noise floor measurement. The noise estimation technique may be used in connection with, a differential phased shift keying communication scheme or other modulation techniques.
摘要翻译：一种用于噪声信号分析和与地下发射机通信的方法。该方法包括以下步骤：当没有信号从发射机发送时测量本底噪声，当发射机正在发射时检测信号，以及通过去除噪声基底测量来估计信号的无噪声分量。可以使用均方根技术来测量本底噪声和从发射机检测信号。通过从测量信号中减去噪声本底测量值，或者通过计算测量信号的平方和噪声本底测量的平方之间的差的平方根，可以从测量信号中去除噪声本底测量值。噪声估计技术可以与差分相移键控通信方案或其他调制技术结合使用。

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