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公开(公告)号：US08125210B2
公开(公告)日：2012-02-28
申请号：US12396411
申请日：2009-03-02
IPC分类号： G01R19/00
CPC分类号： G01V3/08
摘要： A detector for calculating a depth of a buried conductor is provided. The detector includes a plurality of antennas for detecting an electromagnetic field radiated by the conductor and one or more signal processors for calculating the depth of the conductor based on the field detected by the antennas. The calculated depth of the conductor is displayed when one or more predetermined criteria are satisfied.
摘要翻译： 提供了一种用于计算掩埋导体的深度的检测器。 检测器包括用于检测由导体辐射的电磁场的多个天线和一个或多个信号处理器，用于基于由天线检测的场来计算导体的深度。 当满足一个或多个预定标准时，显示导体的计算深度。
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公开(公告)号：US06617856B1
公开(公告)日：2003-09-09
申请号：US10076089
申请日：2002-02-15
IPC分类号： G01V308
CPC分类号： G01V3/081
摘要： A system and method to locate electronic marker balls includes receiving a signal representative of a detected marker ball. The signal includes the resolved in-phase and quadrature-phase (I and Q) components, each centered about a first frequency. The I and Q components are filtered in order to shift the first frequency to a second frequency and match the second frequency I and Q components to exponential decay characteristics associated with the marker balls. The second frequency I and Q components phase integrated in order to distinguish the components from noise. The integrating is based upon predetermined gain coefficients and produces integrated I and Q components in accordance with the predetermined gain coefficients. Next, a magnitude of the integrated I and Q components is determined to produce an I and Q magnitude vector and a noise variance associated with the magnitude vector is determined. Finally, the recursive coefficients are adjusted in accordance with the determined noise variance.
摘要翻译： 用于定位电子标记球的系统和方法包括接收表示检测到的标记球的信号。 信号包括解析的同相和正交相（I和Q）分量，每个分量以第一频率为中心。 对I和Q分量进行滤波，以便将第一频率移动到第二频率，并将第二频率I和Q分量匹配成与标记球相关联的指数衰减特性。 第二个频率I和Q分量相位积分，以区分分量与噪声。 积分基于预定的增益系数，并根据预定的增益系数产生积分的I和Q分量。 接下来，确定积分I和Q分量的大小以产生I和Q幅度矢量，并且确定与幅度矢量相关联的噪声方差。 最后，根据确定的噪声方差来调整递归系数。
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3.发明授权公开(公告)号：US08566043B2
公开(公告)日：2013-10-22
申请号：US12396413
申请日：2009-03-02
CPC分类号： G01V3/081
摘要： A detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor comprises three antennas B, M, T. Outputs of two pairs of antennas are compared and the depth of the buried conductor is calculated using two different methods. If there is a significant difference in the two calculated depths then it is deemed that the electromagnetic field produced by the buried current carrying conductor is significantly distorted by the material in which the conductor is buried.
摘要翻译： 用于计算由埋电承载导体产生的电磁场的失真的检测器包括三个天线B，M，T。比较两对天线的输出，并且使用两种不同的方法计算掩埋导体的深度。 如果两个计算深度有显着差异，则认为由埋入载流导体产生的电磁场被导体埋入的材料显着变形。
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公开(公告)号：US08183851B2
公开(公告)日：2012-05-22
申请号：US12396414
申请日：2009-03-02
IPC分类号： G01R19/00
CPC分类号： G01V3/08
摘要： A detector for calculating a depth of a buried conductor is provided. The detector includes first, second and third antennas and a microprocessor. The second antenna has an axis parallel to an axis of the first antenna and is spaced a distance s from the first antenna. The third antenna has an axis parallel to the axes of the first and second antennas and is spaced a distance 2s from the first antenna and a distance s from the second antenna. The microprocessor is configured to compare magnetic fields at the first and second antennas to produce a first compared value, compare magnetic fields at the first and third antennas to produce a second compared value, and calculate the depth of said buried conductor based on the first and second compared values.
摘要翻译： 提供了一种用于计算掩埋导体的深度的检测器。 检测器包括第一，第二和第三天线和微处理器。 第二天线具有平行于第一天线的轴线并与第一天线隔开距离s的轴线。 第三天线具有平行于第一和第二天线的轴线的轴线，并且与第一天线间隔2s，距离第二天线的距离s。 微处理器被配置为比较第一和第二天线处的磁场以产生第一比较值，比较第一和第三天线处的磁场以产生第二比较值，并且基于第一和第二天线计算所述埋入导体的深度， 第二个比较值。
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公开(公告)号：US07994770B2
公开(公告)日：2011-08-09
申请号：US12395837
申请日：2009-03-02
CPC分类号： G01V3/081 , H03F3/211 , H03F3/2173 , H03F3/24 , H03F2200/432
摘要： A system for detecting a buried conductor comprises a transmitter for generating a test signal in the buried conductor and a detector for detecting an electromagnetic signal resulting from the test signal flowing in the buried conductor. The transmitter comprises a waveform generator for generating a drive waveform signal, a power supply, an amplifier, connected to the power supply and the waveform generator for producing an output drive signal based on the drive waveform signal and an output circuit for acting on the output drive signal to generate an output signal having a current and a voltage. In-phase and quadrature components of the current and voltage of the output signal are fed back for controlling the amplifier.
摘要翻译： 用于检测掩埋导体的系统包括用于在掩埋导体中产生测试信号的发射器和用于检测由在埋入导体中流动的测试信号产生的电磁信号的检测器。 发射机包括用于产生驱动波形信号的波形发生器，连接到电源和波形发生器的放大器，用于基于驱动波形信号产生输出驱动信号，以及用于作用于输出的输出电路 驱动信号以产生具有电流和电压的输出信号。 输出信号的电流和电压的同相和正交分量被反馈以控制放大器。
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6.发明申请公开(公告)号：US20100004880A1
公开(公告)日：2010-01-07
申请号：US12396413
申请日：2009-03-02
CPC分类号： G01V3/081
摘要： A detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor comprises three antennas B, M, T. Outputs of two pairs of antennas are compared and the depth of the buried conductor is calculated using two different methods. If there is a significant difference in the two calculated depths then it is deemed that the electromagnetic field produced by the buried current carrying conductor is significantly distorted by the material in which the conductor is buried.
摘要翻译： 用于计算由埋电承载导体产生的电磁场的失真的检测器包括三个天线B，M，T。比较两对天线的输出，并且使用两种不同的方法计算掩埋导体的深度。 如果两个计算深度有显着差异，则认为由埋入载流导体产生的电磁场被导体埋入的材料显着变形。
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公开(公告)号：US20100001732A1
公开(公告)日：2010-01-07
申请号：US12396414
申请日：2009-03-02
CPC分类号： G01V3/08
摘要： A detector for calculating a depth of a buried conductor comprises three parallel antennas B, M, T. The second antenna M is spaced a distance s from the first antenna B and the third antenna T is a distance 2s from the first antenna B and a distance s from the second antenna M. The outputs of the first and second antennas B, M are compared and the outputs from the second and third antennas M, T are compared. The depth of the buried conductor is calculated based on the first and second compared values.
摘要翻译： 用于计算掩埋导体的深度的检测器包括三个平行天线B，M，T。第二天线M与第一天线B隔开距离s，第三天线T距离第一天线B的距离为2s， 距离第二天线M的距离。比较第一和第二天线B，M的输出，并比较来自第二和第三天线M，T的输出。 基于第一和第二比较值计算掩埋导体的深度。
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公开(公告)号：US20100001731A1
公开(公告)日：2010-01-07
申请号：US12395837
申请日：2009-03-02
CPC分类号： G01V3/081 , H03F3/211 , H03F3/2173 , H03F3/24 , H03F2200/432
摘要： A system for detecting a buried conductor comprises a transmitter for generating a test signal in the buried conductor and a detector for detecting an electromagnetic signal resulting from the test signal flowing in the buried conductor. The transmitter comprises a waveform generator for generating a drive waveform signal, a power supply, an amplifier, connected to the power supply and the waveform generator for producing an output drive signal based on the drive waveform signal and an output circuit for acting on the output drive signal to generate an output signal having a current and a voltage. In-phase and quadrature components of the current and voltage of the output signal are fed back for controlling the amplifier.
摘要翻译： 用于检测掩埋导体的系统包括用于在掩埋导体中产生测试信号的发射器和用于检测由在埋入导体中流动的测试信号产生的电磁信号的检测器。 发射机包括用于产生驱动波形信号的波形发生器，连接到电源和波形发生器的放大器，用于基于驱动波形信号产生输出驱动信号，以及用于作用于输出的输出电路 驱动信号以产生具有电流和电压的输出信号。 输出信号的电流和电压的同相和正交分量被反馈以控制放大器。
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公开(公告)号：US07184951B2
公开(公告)日：2007-02-27
申请号：US10076086
申请日：2002-02-15
IPC分类号： G10L13/02
摘要： Methods and systems for digitally generating sound from phase and amplitude information of a narrow bandwidth signal, such as a narrow bandwidth locator signal. Phase-derivative information is determined from the phase information. The bandwidth of the phase-derivative information is spread out, or stretched, over a wider bandwidth, so that the frequency variations will be more perceptible to users. The result is combined with an audio band carrier frequency, the result of which controls an oscillator. The oscillator output is combined with the amplitude information to generate an analog audio signal that is modulated with the amplitude information and the phase-derivative information. The amplitude information wider bandwidth phase-derivative information are used to modulate an audio carrier in both frequency and amplitude. The overall process can be thought of as a translation of the frequency and amplitude information from the narrow bandwidth around the locate frequency to a wider bandwidth on a chosen carrier frequency in the audio band. The received amplitude and phase information is received at an input sample rate. Where the input sample rate is relatively low, the amplitude and phase information are up-sampled to an output sample rate that is higher than a desired audio frequency. The higher output sample rate insures that there are sufficient samples of the signal during each cycle or period of the audio frequency. The higher sample rate is typically also the sample rate of a digital to analog converter that outputs an analog signal to a speaker. The amplitude information and/or phase derivative information are optionally scaled to system gain. The sound heard by the operator can optionally be adjusted with an optional selectivity filter.
摘要翻译： 用于从诸如窄带宽定位信号的窄带宽信号的相位和振幅信息中数字产生声音的方法和系统。 从相位信息确定相位导数信息。 相位导数信息的带宽在更宽的带宽上扩展或拉伸，使得频率变化对于用户来说将更为可见。 结果与音频载波频率相结合，其结果控制振荡器。 振荡器输出与幅度信息组合，以产生用振幅信息和相位导数信息调制的模拟音频信号。 振幅信息较宽的带宽相位微分信息用于调制频率和幅度的音频载波。 整个过程可以被认为是频率和幅度信息从定位频率周围的窄带宽到音频频带中所选择的载波频率上的较宽带宽的转换。 接收的幅度和相位信息以输入采样率被接收。 在输入采样率相对低的情况下，幅度和相位信息被上采样到高于期望音频的输出采样率。 较高的输出采样率确保在每个周期或音频周期期间有足够的信号样本。 更高的采样率通常也是将模拟信号输出到扬声器的数模转换器的采样率。 幅度信息和/或相位导数信息可选地被缩放到系统增益。 操作员听到的声音可以选择性地用可选的选择性过滤器进行调节。
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公开(公告)号：US07567875B2
公开(公告)日：2009-07-28
申请号：US11249749
申请日：2005-10-14
申请人： John Mark Royle
发明人： John Mark Royle
CPC分类号： G01V3/08
摘要： A detector for locating a sonde is comprised of a plurality of antennas, a corresponding number of signal isolator modules 1 and a geometrical evaluation module. The magnetic signal generated by the sonde has a fundamental frequency and harmonic frequencies. A frequency spectrum analyzer 29 which forms part of the signal isolator module 1 has frequency bins which are aligned with the fundamental frequency and a plurality of harmonic frequencies of the magnetic signal produced by the sonde. The frequency bins follow variations in the frequency of the magnetic signal produced by the sonde which allows the detector to detect the sonde at a separation of up to 30m.
摘要翻译： 用于定位探头的检测器由多个天线，相应数量的信号隔离器模块1和几何评估模块组成。 由探头产生的磁信号具有基频和谐波频率。 形成信号隔离器模块1的一部分的频谱分析仪29具有与基准频率对应的频率
排和由探头产生的磁信号的多个谐波频率。 频率箱遵循由探头产生的磁信号的频率的变化，其允许检测器以高达30m的间隔探测探头。
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