Extended range passive marker
    1.
    发明授权
    Extended range passive marker 有权
    扩展范围被动标记

    公开(公告)号:US06246328B1

    公开(公告)日:2001-06-12

    申请号:US09571183

    申请日:2000-05-16

    IPC分类号: G08B1314

    摘要: An extended range coil for an inductance-capacitance tuned circuit and a method for its manufacture. The extended range coil comprises a wire-wound planar spiral portion, having a circumference, and a wire-wound wall portion joined to the wire-wound planar spiral portion and extending outward from the circumference thereof. An extended range coil according to the present invention may use a continuous length of wire for winding the wire-wound planar spiral portion and the wire-wound wall portion.

    摘要翻译: 用于电感 - 电容调谐电路的扩展范围线圈及其制造方法。 扩展范围线圈包括具有圆周的绕线平面螺旋部分和连接到线绕平面螺旋部分并从其圆周向外延伸的绕线壁部分。 根据本发明的扩展范围线圈可以使用连续长度的线缠绕线绕平面螺旋部分和绕线壁部分。

    Conductor locator adapter for electronic markers
    2.
    发明授权
    Conductor locator adapter for electronic markers 失效
    用于电子标记的导体定位适配器

    公开(公告)号:US5430379A

    公开(公告)日:1995-07-04

    申请号:US113220

    申请日:1993-08-27

    CPC分类号: G01V3/15 G01V15/00

    摘要: An adapter for a conventional conductor locator allows the locator to additionally detect the presence of passive, electronic markers. The adapter includes an electronic marker locator and a wireless interface housed in a common body which may be releasably attached to the conductor locator. The electronic marker locator, which may comprise conventional circuitry, outputs a marker detection signal to the wireless interface, which conditions the signal so that it is compatible with the input sensor of the conductor locator. The wireless interface includes an output antenna which is positioned adjacent the input sensor of the conductor locator when the adapter is attached thereto. If the conductor locator is of the type which may receive test signals at different operating frequencies, then the wireless interface also includes a modulator to selectively convert the marker detection signal to one of these operating frequencies. The electronic marker locator portion of the adapter may also be selectively adjusted to detect different discrete marker frequencies. The adapter may operate in a sleep mode, wherein the output signal of the wireless interface is disabled, but the wireless interface may still alert the user to the presence of an electronic marker by an audible alarm.

    摘要翻译: 用于常规导体定位器的适配器允许定位器另外检测被动电子标记的存在。 适配器包括电子标记定位器和容纳在公共主体中的无线接口,其可以可释放地附接到导体定位器。 可以包括常规电路的电子标记定位器向无线接口输出标记检测信号,该无线接口调节信号以使其与导体定位器的输入传感器兼容。 无线接口包括输出天线,当适配器附接到其上时,输出天线位于导体定位器的输入传感器附近。 如果导体定位器是可能在不同工作频率下接收测试信号的类型,则无线接口还包括调制器,用于选择性地将标记检测信号转换成这些工作频率之一。 还可以选择性地调节适配器的电子标记定位器部分以检测不同的离散标记频率。 适配器可以在睡眠模式下操作,其中无线接口的输出信号被禁用,但是无线接口可能仍然通过声音警报来警告用户电子标记的存在。

    MULTI-AXIS MARKER LOCATOR
    3.
    发明申请
    MULTI-AXIS MARKER LOCATOR 审中-公开
    多轴标记定位器

    公开(公告)号:US20130099790A1

    公开(公告)日:2013-04-25

    申请号:US13278991

    申请日:2011-10-21

    IPC分类号: G01V3/12 H01Q21/28

    摘要: A portable locator for locating an obscured marker. The locator includes a portable locator housing, a first antenna disposed within the housing, a second antenna disposed orthogonally to the antenna within the housing; and a processor. The processor is configured to interact with each of the first and second antennas, such that each of the first and second antennas is configured to transmit and receive signals. The locator may include more than two antennas, and may include multiple sets of antennas.

    摘要翻译: 便携式定位器,用于定位模糊标记。 定位器包括便携式定位器壳体,设置在壳体内的第一天线,与壳体内的天线正交设置的第二天线; 和处理器。 处理器被配置为与第一和第二天线中的每一个交互,使得第一和第二天线中的每一个被配置为发送和接收信号。 定位器可以包括多于两个天线,并且可以包括多组天线。

    Apparatus for locating buried conductors using phase-shifted signals
    5.
    发明授权
    Apparatus for locating buried conductors using phase-shifted signals 失效
    用于使用相移信号定位埋地导体的装置

    公开(公告)号:US5471143A

    公开(公告)日:1995-11-28

    申请号:US11383

    申请日:1993-01-29

    申请人: Ziyad H. Doany

    发明人: Ziyad H. Doany

    IPC分类号: G01V3/10

    CPC分类号: G01V3/104

    摘要: An apparatus for locating obscured conduits, such as buried cables, employs a novel signal processing technique to increase the sensitivity of the apparatus, particularly in congested areas. The cable locating apparatus is similar to prior art dual-peak detection devices which compare signals from two parallel induction coils, but a phase shift is introduced into one of the signals prior to the comparison. This phase shift serves to minimize the effects of side minima in the response curve of prior art dual-peak devices. This effect is enhanced by adding a gain mismatch to the two detected signals. The locator preferably operates with analog signals to reduce expense.

    摘要翻译: 用于定位诸如埋地电缆的遮蔽管道的装置采用新颖的信号处理技术来提高装置的灵敏度,特别是在拥挤的区域中。 电缆定位装置类似于现有技术的双峰检测装置,其比较来自两个并联感应线圈的信号,但是在比较之前将相移引入到一个信号中。 该相移用于最小化现有技术双峰值器件的响应曲线中侧面最小值的影响。 通过对两个检测到的信号增加增益失配来增强该效果。 定位器优选地以模拟信号操作以降低费用。

    MAGNETOMECHANICAL MARKERS FOR MARKING STATIONARY ASSETS
    7.
    发明申请
    MAGNETOMECHANICAL MARKERS FOR MARKING STATIONARY ASSETS 有权
    标记固定资产的磁性标记

    公开(公告)号:US20120068823A1

    公开(公告)日:2012-03-22

    申请号:US12888272

    申请日:2010-09-22

    IPC分类号: G08B5/22

    摘要: An article, system and method related to a magnetomechanical marker used to mark stationary assets. Magnetomechanical markers can be arranged in clusters and associated with stationary assets, including assets buried underground. Markers can be associated with an asset by being attached to the asset, arranged in a particular spatial relationship with the asset, or in any other appropriate way. A portable locating device can be used to generate an alternating magnetic field to activate the magnetomechanical marker and thus locate the asset.

    摘要翻译: 与用于标记固定资产的磁力机械标记相关的文章,系统和方法。 磁力机械标记可以排列成簇并与固定资产相关联,包括埋藏在地下的资产。 标记可以通过附加到与资产以特定的空间关系排列的资产或以任何其他适当的方式与资产相关联。 可以使用便携式定位装置来产生交变磁场以激活磁力机械标记,从而定位资产。

    Induction coil driver
    8.
    发明授权
    Induction coil driver 失效
    感应线圈驱动器

    公开(公告)号:US4914399A

    公开(公告)日:1990-04-03

    申请号:US317820

    申请日:1989-03-01

    申请人: Ziyad H. Doany

    发明人: Ziyad H. Doany

    CPC分类号: H03F3/2171

    摘要: An amplifier which has special application as an induction coil driver. A multi-frequency signal is used to modulate the pulse width of a square wave, resulting in a pulse modulated signal. The pulse modulated signal is divided into two delay signals. The falling edge of each pulse is delayed in one of the delay signals, while the rising edge of each pulse is delayed in the other delay signal. This creates a "dead band" between the two signals for each pulse. The signals are used to drive two metal oxide semiconducting field-effect transistors, which are connected to positive and negative power supplies. The switching of the MOSFETs occurs during the dead band which, when combined with a novel inductor-diode circuit, results in high-efficiency power transfer. The amplified modulated signal is then subjected to a low-pass filter which cancels out the square wave carrier and switching noise. The amplified analog signal may then be applied to a non-tuned induction coil.