公开(公告)号：US06919845B2

公开(公告)日：2005-07-19

申请号：US10419813

申请日：2003-04-22

申请人： Akihiro Ozaki ,  Koichi Ogawa ,  Yoshio Koyanagi ,  Yutaka Saito ,  Shoichi Kajiwara ,  Yoshitaka Asayama ,  Atsushi Yamamoto

发明人： Akihiro Ozaki ,  Koichi Ogawa ,  Yoshio Koyanagi ,  Yutaka Saito ,  Shoichi Kajiwara ,  Yoshitaka Asayama ,  Atsushi Yamamoto

IPC分类号： G01R29/08 ,  H04B1/38 ,  H02J1/00 ,  G01N22/00 ,  H03C1/52

CPC分类号： G01R29/0857 ,  G01R29/0814 ,  H04B1/3838

摘要： In an apparatus for measuring a specific absorption rate (SAR) for use in a radio apparatus, a first near magnetic field of a radio wave radiated from a reference radio apparatus is measured in free space, and an SAR of the radio wave radiated from the reference radio apparatus by using a predetermined phantom according to a predetermined measurement method. A transformation factor α is calculated by dividing the measured SAR by a square value of the measured first near magnetic field, and a second near magnetic field of a radio wave radiated from a radio apparatus to be measured is measured in free space. Then an SAR of the radio wave radiated from the radio apparatus to be measured is estimated and calculated by multiplying a square value of the measured second near magnetic field by the calculated transformation factor α.

摘要翻译： 在无线电设备中用于测量特定吸收率（SAR）的设备中，在自由空间中测量从参考无线电设备辐射的无线电波的第一近似磁场，并且从所述无线电设备辐射的无线电波的SAR 参考无线电设备，根据预定的测量方法使用预定的体模。 通过将测量的SAR除以测量的第一近似磁场的平方值，并且在自由空间中测量从待测量的无线电设备辐射的无线电波的第二近似磁场来计算变换因子α。 然后通过将测量的第二近似磁场的平方值乘以计算出的变换因子α来估计和计算从待测量的无线电设备辐射的无线电波的SAR。

公开(公告)号：US06566854B1

公开(公告)日：2003-05-20

申请号：US09646161

申请日：2000-09-12

申请人： Mark J. Hagmann ,  John F. Sutton

发明人： Mark J. Hagmann ,  John F. Sutton

IPC分类号： G01R3300

CPC分类号： G01R15/183 ,  G01R29/0857

摘要： An apparatus for measuring high frequency currents includes a non-ferrous core current probe that is coupled to a wide-band transimpedance amplifier. The current probe has a secondary winding with a winding resistance that is substantially smaller than the reactance of the winding. The sensitivity of the current probe is substantially flat over a wide band of frequencies. The apparatus is particularly useful for measuring exposure of humans to radio frequency currents.

摘要翻译： 用于测量高频电流的装置包括耦合到宽带跨阻抗放大器的非铁芯电流探头。 电流探头具有基本上小于绕组电抗的绕组电阻的次级绕组。 电流探头的灵敏度在宽频带内基本平坦。 该装置对于测量人类对射频电流的暴露是特别有用的。

公开(公告)号：US06525657B1

公开(公告)日：2003-02-25

申请号：US09557369

申请日：2000-04-25

申请人： Jacek J. Wojcik

发明人： Jacek J. Wojcik

IPC分类号： G08B2900

CPC分类号： G01R29/0821 ,  G01R29/0857

摘要： A radio frequency (RF) multi-testing apparatus and method for rapid (e.g. production line) testing of a wireless communications device for operational adherence of the device to a pre-determined reference specification defining specific absorption rate (SAR) parameters correlated to the device and for simultaneous testing of the body loss of the device. The device is positioned within an RF shielded enclosure and operated at a test transmit power. A linear array of E-field isotropic probes (e.g. five) are positioned at a predetermined location in the container within human tissue simulation matter and measure the electric-field therein. A plurality of RF isotropic probes are spatially distributed within the container and measure the RF power received thereby, with the container providing reflective surfaces therein. Computer processing apparatus compares the electric-field measurements to the SAR reference specification and determines therefrom whether the device adheres to the specification. The computer processing apparatus also combines the RF power measurements and produces a value representing the averaged integrated body loss of the device. The determination of whether the device adheres to the SAR specification also determines a measure of the metallic system integrity of the device.

摘要翻译： 一种用于无线通信设备的快速（例如生产线）测试的无线电频率（RF）多测试设备和方法，用于将设备的操作遵守性与限定与该设备相关的特定吸收率（SAR）参数的预定参考规范进行操作 并同时测试设备的身体损失。 该设备位于RF屏蔽外壳内，并以测试发射功率工作。 将E场各向同性探针（例如五个）的线性阵列定位在人体组织模拟物质内的容器中的预定位置，并测量其中的电场。 多个RF各向同性探针在空间上分布在容器内并且测量由此接收的RF功率，容器在其中提供反射表面。 计算机处理设备将电场测量与SAR参考规范进行比较，并由此确定设备是否遵守规范。 计算机处理装置还组合RF功率测量并且产生表示设备的平均的整体损失的值。 设备是否遵守SAR规范的确定也决定了设备的金属系统完整性的度量。

公开(公告)号：US5440232A

公开(公告)日：1995-08-08

申请号：US186711

申请日：1993-12-06

申请人： John F. Scarzello ,  Adam C. Feaga ,  Daniel S. Lenko

发明人： John F. Scarzello ,  Adam C. Feaga ,  Daniel S. Lenko

IPC分类号： G01R29/08 ,  G01R33/02

CPC分类号： G01R29/0857

摘要： A portable electromagnetic field exposure dosimeter includes a triaxial fite-loaded coil sensor, a group of amplifiers and bandpass filters, a data control board, and a computer. The triaxial sensor receives electromagnetic radiation along three orthogonal axes for measurement which is channelled through a group of amplifiers and then bandpass filtered into three frequency signal ranges. One frequency range corresponds to exposure at 60 Hz and two of its harmonics. The second frequency range corresponds to high frequency pulsed energy. The third frequency range reflects body motion of a tested individual. The data control board converts such filtered signals into digital code and controls the flow of the converted data to random access memory and to the computer. The computer performs a Fast Fourier Transform on the converted data from the 60 Hz frequency range and then stores or displays the analyzed data as a function of frequency and time. The computer also stores or displays the data from the other two frequency ranges.

摘要翻译： 便携式电磁场曝光剂量计包括三轴铁氧体负载线圈传感器，一组放大器和带通滤波器，数据控制板和计算机。 三轴传感器沿着三个正交轴测量接收电磁辐射，通过一组放大器，然后带通滤波成三个频率信号范围。 一个频率范围对应于在60Hz和两个谐波的曝光。 第二频率范围对应于高频脉冲能量。 第三个频率范围反映了测试个体的身体运动。 数据控制板将这些经滤波的信号转换为数字代码，并将转换的数据的流程控制为随机存取存储器和计算机。 计算机对来自60Hz频率范围的转换数据执行快速傅里叶变换，然后存储或显示分析数据作为频率和时间的函数。 计算机还存储或显示来自其他两个频率范围的数据。

公开(公告)号：US3927375A

公开(公告)日：1975-12-16

申请号：US43912374

申请日：1974-02-04

申请人： LANOE BERNARD ,  METZ ELISABETH DE

发明人： LANOE BERNARD ,  DE METZ ELISABETH

IPC分类号： G01R29/08 ,  H04B17/00

CPC分类号： G01R29/0892 ,  G01R29/0857

摘要： An electromagnetic radiation detector unit includes an alarm device responsive to voltage measurements. The detector unit includes a radiation receiving antenna, a voltage detector connected to the antenna, a threshold amplifier switch connected to the output of the voltage detector and a diode which is triggered by the amplifier switch and which serves as the alarm device. The components of the unit are carried by a printed circuit card or formed by printed circuits on the card. The card is formed as an individual badge used by the wearer in detecting electromagnetic radiation hazards and carries identity and other indicia on the face thereof.

摘要翻译： 电磁辐射检测器单元包括响应于电压测量的报警装置。 检测器单元包括辐射接收天线，连接到天线的电压检测器，连接到电压检测器的输出的阈值放大器开关和由放大器开关触发并用作报警器件的二极管。 单元的组件由印刷电路卡承载或由卡上的印刷电路形成。 该卡形成为穿戴者在检测电磁辐射危害中使用的个体徽章，并在其表面上携带身份和其他标记。

公开(公告)号：US3182262A

公开(公告)日：1965-05-04

申请号：US22210262

申请日：1962-09-07

申请人： RAMCOR INC

发明人： SCHUMANN CHARLIE O

IPC分类号： G01R29/08

CPC分类号： G01R29/0857

公开(公告)号：US20180315289A1

公开(公告)日：2018-11-01

申请号：US15581780

申请日：2017-04-28

申请人： HD Electric Company

发明人： William John McNulty ,  Michael Standiford ,  Eli Alexander Johnson

IPC分类号： G08B21/18 ,  G01R19/165 ,  G08B7/06

CPC分类号： G08B3/00 ,  G01R29/085 ,  G01R29/0857 ,  G08B5/00 ,  G08B5/223 ,  G08B21/182 ,  H02H5/00 ,  H02H5/12

摘要： An electric field detector includes field detection circuitry configured to detect voltage in an electric field in an environment and configured to determine if the voltage meets or exceeds a voltage threshold. A warning module operably connected with the field detection circuitry is configured to provide a warning to operators in the environment. A communication module operably connected with the field detection circuitry communicates a warning notification to another electric field detector.

公开(公告)号：US09551734B2

公开(公告)日：2017-01-24

申请号：US14702075

申请日：2015-05-01

申请人： Brookhaven Science Associates, LLC

发明人： Gianluigi De Geronimo

IPC分类号： G01R19/04 ,  H03K5/1532 ,  G01R29/08

CPC分类号： G01R19/04 ,  G01R29/0857 ,  H03K5/1532

摘要： A method and apparatus for a current-output peak detector. A current-output peak detector circuit is disclosed and works in two phases. The peak detector circuit includes switches to switch the peak detector circuit from the first phase to the second phase upon detection of the peak voltage of an input voltage signal. The peak detector generates a current output with a high degree of accuracy in the second phase.

摘要翻译： 一种用于电流输出峰值检测器的方法和装置。 公开了一种电流输出峰值检测器电路，并分两个阶段工作。 峰值检测器电路包括在检测到输入电压信号的峰值电压时将峰值检测器电路从第一相切换到第二相的开关。 峰值检测器在第二相中产生高精度的电流输出。

公开(公告)号：US20170003333A1

公开(公告)日：2017-01-05

申请号：US14755216

申请日：2015-06-30

申请人： Microsoft Technology Licensing, LLC

发明人： Tapio Juhani Ronkainen

IPC分类号： G01R29/08

CPC分类号： G01R29/0857 ,  B25J9/003 ,  G01R29/08 ,  G01R29/0814 ,  G01R29/0871 ,  G01R29/10 ,  G01R31/001 ,  G01R31/2822 ,  H01Q1/10 ,  H01Q1/1235

摘要： A EUT (equipment under test) positioning device is disclosed. The device comprises a holder element configured to hold EUT, a sliding element configured to move the holder element horizontally, a rotating element attached to the sliding element and configured to rotate the holder element, at least three telescopic elements attached to the rotating element and configured to independently move the holder element vertically, at least five actuators individually attached to the sliding element, the rotating element and the telescopic elements, wherein the actuators are configured to activate movement of the sliding element, the rotating element and the telescopic elements, and a position monitoring element configured to monitor the position of EUT. The holder element, the sliding element, the rotating element, and the telescopic elements comprise radio frequency transparent material.

摘要翻译： 公开了一种EUT（被测设备）定位装置。 该装置包括构造成保持EUT的保持器元件，被配置为水平地移动保持器元件的滑动元件，附接到滑动元件并被配置为使保持器元件旋转的旋转元件，至少三个伸缩元件，其连接到旋转元件并配置 独立地将保持器元件垂直地移动，至少五个致动器分别附接到滑动元件，旋转元件和伸缩元件，其中致动器构造成启动滑动元件，旋转元件和伸缩元件的运动，以及 位置监控元件被配置为监视EUT的位置。 保持器元件，滑动元件，旋转元件和伸缩元件包括射频透明材料。

公开(公告)号：US09494632B1

公开(公告)日：2016-11-15

申请号：US14503350

申请日：2014-09-30

申请人： HD Electric Company

发明人： William J. McNulty

IPC分类号： G08B21/00 ,  G01R29/08 ,  A61B5/00

CPC分类号： G01R29/0857 ,  A61B5/0006 ,  G01R19/155

摘要： A mechanism for providing monitoring of electric field detectors. In accordance with instructions on a machine-readable medium, a computing system receives from a device data corresponding to a user identifier. Further, the computing device identifies from a plurality of electric field detectors one or more electric field detectors associated with the user identifier and identifies status data for each of the identified one or more electric field detectors. The status data for each electric field detector in the plurality of electric field detectors comprises data indicative of at least (i) a location of the electric field detector and (ii) an alarm state of the electric field detector. Additionally, the computing system causes a display component of the device to display a graphical user interface that presents indicia of the status data for each of the identified one or more electric field detectors.

摘要翻译： 一种用于提供电场检测器监测的机构。 根据机器可读介质上的指令，计算系统从设备接收对应于用户标识符的数据。 此外，计算设备从多个电场检测器识别与用户标识符相关联的一个或多个电场检测器，并识别每个识别的一个或多个电场检测器的状态数据。 多个电场检测器中每个电场检测器的状态数据包括指示至少（i）电场检测器的位置和（ii）电场检测器的报警状态的数据。 另外，计算系统使得设备的显示组件显示图形用户界面，该图形用户界面呈现每个识别的一个或多个电场检测器的状态数据的标记。