公开(公告)号：US06724589B1

公开(公告)日：2004-04-20

申请号：US09395277

申请日：1999-09-13

申请人： Donald G. Funderburk

发明人： Donald G. Funderburk

IPC分类号： H02H300

CPC分类号： C23F13/04 ,  G01R31/025 ,  G01R31/40 ,  H02H3/338

摘要： A method and apparatus including indicators and a Ground Fault Current Interrupter (GFCI) are provided to test the marina's power and the boats electrical system load to make sure that both are proper and safe to be inter-connected. A low voltage high impedance ground current path including an oppositely connected pair of typically four silicon diodes in series in each of the pairs, sufficient to raise the voltage to a safe level encompassing the typical combined AC ground fault and DC galvanic currents in a Marina is incorporated. This protects against low level AC ground faults present in the marina, as well as DC current due to the harbor safety ground interconnect between boats in the harbor.

摘要翻译： 提供了一种包括指示器和接地故障电流断路器（GFCI）的方法和装置，用于测试码头的电力和船舶电气系统负载，以确保两者都是正确和安全的相互连接。 低压高阻抗接地电流路径包括在每对中串联的通常四个硅二极管的相对连接的一对，足以将电压升高到包含典型组合的交流接地故障和码头中的直流电流的安全水平， 并入。 这样可防止码头中存在的低电平交流接地故障，以及由于海港船只之间的港口安全接地互连造成的直流电流。

公开(公告)号：US4931740A

公开(公告)日：1990-06-05

申请号：US227160

申请日：1988-08-02

申请人： Reza Hassanzadeh ,  Donald G. Funderburk ,  Steven A. Schwartz ,  Edward T. Rock

发明人： Reza Hassanzadeh ,  Donald G. Funderburk ,  Steven A. Schwartz ,  Edward T. Rock

IPC分类号： G01V3/08

CPC分类号： G01V3/088

摘要： A sensor for measuring disturbances to an electrostatic field caused by the intrusion of a charged body or a charge producing body. The sensor employs at least two probes displaced from each other which have attached beads of radioactive material to provide free ions in the vicinity of the probe. The free ions enhance the signal created by each probe when it is affected by a disturbance in the electrostatic field in which it resides. The signals thus created are conditioned for transmission to a differential amplifier which combines them and produces an output signal which represents the detection of an intruding charged body, its distance, and its characteristics. The sensor can be configured with more than two probes seeded or placed in an array and a computer for real-time selection of the two yielding optimum signals for charged body location, velocity, direction of travel, and electrostatic signature.

摘要翻译： 用于测量由带电体或电荷产生体的入侵引起的静电场的干扰的传感器。 传感器使用至少两个相互置换的探针，它们具有连接的放射性物质的珠粒，以在探针附近提供游离离子。 当受到静电场中的干扰影响时，自由离子增强了每个探针产生的信号。 由此创建的信号被调节为传输到差分放大器，其组合它们并产生表示入侵带电体的检测的输出信号，其距离及其特性。 传感器可以配置有两个以上种子或放置在阵列中的探针和一台计算机，用于实时选择两个产生最佳信号的充电体位置，速度，行进方向和静电特征。