公开(公告)号：US10753722B1

公开(公告)日：2020-08-25

申请号：US15457222

申请日：2017-03-13

申请人： Ray Merewether

发明人： Ray Merewether

IPC分类号： G06F15/00 ,  G01B7/26 ,  G01V3/08 ,  G01V3/15

摘要： Systems, methods, and apparatus for determining an estimated depth of a buried object using sheet current flow models are disclosed. In one embodiment a buried object locator includes a processor to process magnetic signals emitted from the buried object using a closed form sheet current flow model taken from multiple spaced-apart positions to determine, store, and/or display estimated depth information of the buried object.

公开(公告)号：US20070018649A1

公开(公告)日：2007-01-25

申请号：US11184456

申请日：2005-07-19

申请人： Jeffrey Prsha ,  Ray Merewether ,  Edward Denaci ,  Christoph Maier ,  Mark Olsson

发明人： Jeffrey Prsha ,  Ray Merewether ,  Edward Denaci ,  Christoph Maier ,  Mark Olsson

IPC分类号： G01V3/08 ,  G08G1/01

CPC分类号： G01V3/088

摘要： A self-tuning resonator for use in a transmitter apparatus for inducing alternating currents in a buried conductor. The resonator is dynamically tuned at frequencies below 500 kHz by exploiting the inherent voltage-variability of net capacitance in multilayer ceramic capacitors. The transmitter apparatus provides improved efficiency and induced output power suitable for use in a man-portable locator system, providing a very high magnetic field output from a physically small battery-powered resonator at frequencies under 500 kHz. The resonator exhibits a very low equivalent series resistance (ESR) and is adaptively retuned to a predetermined resonant frequency responsive to any changes in resonance arising from phenomena such as component heating, thereby supporting very high tank circuit currents from battery-powered source to produce very high magnetic flux output.

摘要翻译： 一种用于在掩埋导体中感应交流电的发射机装置中的自谐振谐振器。 谐振器通过利用多层陶瓷电容器中净电容的固有电压变化来动态调谐在低于500 kHz的频率。 发射机设备提供了适合于在便携式定位系统中使用的改善的效率和感应输出功率，从500kHz以下频率的物理上小的电池供电的谐振器提供非常高的磁场输出。 谐振器表现出非常低的等效串联电阻（ESR），并且响应于由诸如部件加热的现象引起的谐振的任何变化而自适应地重新调节到预定的谐振频率，从而支持来自电池供电的源极的非常高的储能电路电流以产生非常高的 高磁通量输出。

公开(公告)号：US20060239013A1

公开(公告)日：2006-10-26

申请号：US11262236

申请日：2005-10-28

申请人： Mark Olsson ,  Zachary Simmons ,  Jeffrey Prsha ,  Ronan Gray ,  Ray Merewether

发明人： Mark Olsson ,  Zachary Simmons ,  Jeffrey Prsha ,  Ronan Gray ,  Ray Merewether

IPC分类号： F21V15/00

CPC分类号： F21V25/04 ,  B63B45/02 ,  B63C11/48 ,  F21V3/04 ,  F21V23/02 ,  F21V25/10 ,  F21V29/767 ,  F21V31/00 ,  F21V31/005 ,  F21W2107/20

摘要： A thru-hull fitting assembly is connected to the forward end of a hollow lamp housing for mounting to a hole in the hull of a vessel in a water-tight fashion. An HID or other lamp is mounted in the lamp housing and is surrounded by a reflector which may have an outer elliptical section and an inner parabolic section. A protective transparent window extends across the forward end of the lamp housing and is sealed thereto. The window may be made of sapphire to provide improved heat dissipation and to resist scratching during hull cleaning and breakage due to thermal shock and wave slap. A circuit may be connected to the lamp to provide over-heat protection, leak detection, as well as fault and power status indicators. Alternate embodiments utilize a solid light pipe or a hollow reflective tube to convey light from the lamp to the protective window.

公开(公告)号：US20060178849A1

公开(公告)日：2006-08-10

申请号：US11205267

申请日：2005-08-15

申请人： Christoph Maier ,  Ray Merewether ,  Mark Olsson

发明人： Christoph Maier ,  Ray Merewether ,  Mark Olsson

IPC分类号： G06F19/00

CPC分类号： G01V3/12

摘要： A blind locating system for finding and tracing buried objects such as utility lines, conductive pipes and sondes. A sensor array is coupled to a signal processor, which determines a field vector for one or more buried objects by producing a data signal representing a covariance matrix corresponding to the covariances of the time-varying sensor array signals over a selected frequency band and accumulation interval. The covariance matrix is characterized by eigenvalues and associated eigenvectors and a user interface (UI) indicates the field vector associated with the eigenvector having the largest eigenvalue. Using several different frequency bands, a plurality of underground objects may be simultaneously detected and indicated in the UI without foreknowledge of their existence or characteristics.

摘要翻译： 用于查找和跟踪诸如公用事业线，导电管和声环之类的埋地物体的盲定位系统。 传感器阵列耦合到信号处理器，信号处理器通过产生表示与选定频带上的时变传感器阵列信号的协方差对应的协方差矩阵的数据信号和累积间隔来确定一个或多个掩埋对象的场向量 。 协方差矩阵的特征在于特征值和相关联的特征向量，并且用户界面（UI）指示与具有最大特征值的特征向量相关联的场向量。 使用几个不同的频带，可以在UI中同时检测和指示多个地下物体，而不需要知道它们的存在或特征。

公开(公告)号：US20050156600A1

公开(公告)日：2005-07-21

申请号：US11077947

申请日：2005-03-11

申请人： Mark Olsson ,  Jeffrey Prsha ,  Dawn Shaffer ,  Ray Merewether ,  Michael Martin ,  Bradley Barnicoat ,  David Cox ,  Thomas Kolb

发明人： Mark Olsson ,  Jeffrey Prsha ,  Dawn Shaffer ,  Ray Merewether ,  Michael Martin ,  Bradley Barnicoat ,  David Cox ,  Thomas Kolb

IPC分类号： G01S7/03 ,  G01S13/88 ,  G01V3/15 ,  G01V3/10

CPC分类号： G01S7/03 ,  G01S13/88 ,  G01S13/885 ,  G01V3/15 ,  G06F3/016 ,  G06F3/0346

摘要： At least one antenna array including three mutually orthogonal antennas each sharing a common center point senses an electromagnetic signal emitted by a buried object such as a utility line, pipe or sonde. A circuit at least partially mounted in a housing is connected to the array and determines a location of the buried object by measuring signal strength and field angles in three dimensions without having to align the antenna array relative to the buried object while eliminating nulls and false peaks. A graphical user interface (GUI) has user-friendly icons, symbols, menus, numbers and graphical and auditory representation of signal strength. A plurality of different underground objects can be simultaneously detected and their different locations can be simultaneously indicated to a user via audible sounds and/or visual images on a display.

摘要翻译： 每个共享公共中心点的包括三个相互正交的天线的至少一个天线阵列感测由诸如公用事业线，管道或探测器的掩埋物体发射的电磁信号。 至少部分地安装在壳体中的电路连接到阵列并且通过在三维中测量信号强度和场角来确定掩埋物体的位置，而不必相对于掩埋物体对准天线阵列，同时消除零峰和假峰 。 图形用户界面（GUI）具有用户友好的图标，符号，菜单，数字以及信号强度的图形和听觉表示。 可以同时检测多个不同的地下物体，并且可以通过显示器上的可听见的声音和/或视觉图像同时向用户指示其不同的位置。

公开(公告)号：US6097671A

公开(公告)日：2000-08-01

申请号：US082500

申请日：1998-05-21

申请人： Ray Merewether

发明人： Ray Merewether

IPC分类号： G10K11/00 ,  H04R5/02 ,  B01S15/00

CPC分类号： G10K11/006

摘要： An acoustic transducer array in which the transducer elements project a plurality of acoustic beams which are not coplanar. In a first embodiment, a cylindrical transducer array housing has each of four transducer elements skewed at an angle relative to the longitudinal axis of the housing. Each acoustic beam formed by the array lies in a unique plane (e.g., in a "pinwheel" configuration), thereby effectively eliminating overlap of the beams throughout the entire profiling range of the array. In another aspect of the invention, acoustic damping material is incorporated throughout selected portions of the transducer housing to mitigate the effects of echoes and undesirable acoustic propagation within the array.

摘要翻译： 声换能器阵列，其中换能器元件投射不共面的多个声束。 在第一实施例中，圆柱形换能器阵列壳体具有四个换能器元件中的每一个相对于壳体的纵向轴线倾斜一定角度。 由阵列形成的每个声束位于独特的平面（例如，以“风轮”构造）中，从而有效地消除了在阵列的整个轮廓范围内的梁的重叠。 在本发明的另一方面，将声阻尼材料整合到换能器壳体的所选部分中，以减轻该阵列内的回波和不期望的声传播的影响。