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1. 发明授权

US11543448B2 Dynamically determining measurement uncertainty (MU) of measurement devices 有权
公开(公告)号：US11543448B2
公开(公告)日：2023-01-03
申请号：US14138567
申请日：2013-12-23
申请人： Keysight Technologies, Inc.
发明人： Su Ann Lim , Ghazali Bin Hussin , Hwei Liat Law , Wei Zhi Ng
IPC分类号： G01R31/28 , G01R21/10
摘要： A method is provided for dynamically determining measurement uncertainty (MU) of a measurement device for measuring a signal output by a device under test (DUT). The method includes storing characterized test data in a nonvolatile memory in the measurement device, the characterized test data being specific to the measurement device for a plurality of sources of uncertainty; receiving a parameter value of the DUT; measuring the signal output by the DUT and received by the measurement device; and calculating the measurement uncertainty of the measurement device for measuring the received signal using the stored characterized test data and the received parameter value of the DUT.

2. 发明授权

US10693572B2 Measuring system for over-the-air power measurements with active transmission 有权
公开(公告)号：US10693572B2
公开(公告)日：2020-06-23
申请号：US15474653
申请日：2017-03-30
申请人： Rohde & Schwarz GmbH & Co. KG
发明人： Markus Gallhauser , Werner Perndl , Nino Voss
IPC分类号： H03C1/62 , H04B17/318 , G01R19/04 , G01R21/10 , G01R21/14 , G01R23/00 , G01R29/08 , H04B17/10 , H04B17/00
摘要： A measuring system for performing over the air power measurements is provided. The measuring system comprises, within a single housing, a detector module, comprising a detector input, a transmitter module, comprising a transmitter output, and an antenna. The detector input and the transmitter output are at least temporarily connected. At least the transmitter output or the detector input are at least temporarily connected to the antenna.

3. 发明授权

US09952261B2 Monitoring power-related parameters in a power distribution unit 有权
公开(公告)号：US09952261B2
公开(公告)日：2018-04-24
申请号：US14247900
申请日：2014-04-08
申请人： Server Technology, Inc.
发明人： Carrel W. Ewing , James P. Maskaly , Brian P. Auclair , Dennis W. Mcglumphy
IPC分类号： G01R21/00 , H04Q9/00 , G01R21/10 , G01R35/00 , H02B1/01 , H01R25/00
CPC分类号： G01R21/10 , G01R21/005 , G01R21/006 , G01R35/005 , G06F2200/261 , H01R25/006 , H02B1/011 , H04Q9/00 , H04Q2209/60 , H04Q2209/823 , H04Q2209/84
摘要： A power distribution unit (PDU) disposable in an electrical equipment rack. The PDU has a housing, a power input penetrating the housing, outlets in the housing, a processor disposed in the housing, voltage and current sensors, and a voltage calculation procedure communicable with the processor. The processor samples voltage and current waveforms and calculates RMS values and other power parameters. A method of managing electrical loads each drawing electrical power from a PDU includes repeatedly sampling voltage across and current flowing through each of the loads, calculating raw RMS values of voltage and current, and scaling the raw RMS values to obtain corrected RMS voltage and current values and other power parameters.

4. 发明授权

US09702911B2 Adjustable power sensor 有权
公开(公告)号：US09702911B2
公开(公告)日：2017-07-11
申请号：US13606215
申请日：2012-09-07
申请人： Eric Breakenridge , Clive Robertson
发明人： Eric Breakenridge , Clive Robertson
IPC分类号： G01R1/30 , G01R21/10 , G01R21/14
CPC分类号： G01R21/10 , G01R21/14
摘要： A power sensor applies respective first and second currents having substantially equal magnitudes to a reference detector and a measurement detector that are thermally coupled to each other. The power sensor senses an input signal with the measurement detector, and it adjusts the respective magnitudes of the first and second currents by substantially equal amounts to correspondingly adjust a measurement characteristic of the measurement detector.

5. 发明申请

US20170016941A1 A Power Detector 有权
标题翻译：电源检测器
公开(公告)号：US20170016941A1
公开(公告)日：2017-01-19
申请号：US15104704
申请日：2013-12-16
申请人： Telefonaktiebolaget LM Ericsson (publ)
发明人： Mingquan Bao
IPC分类号： G01R21/10
CPC分类号： G01R21/10 , G01R21/12
摘要： A power detector (100, 200, 300, 400) comprising a first (110) and a second (115) bipolar junction/FET transistor. The first transistor (110) is arranged as a common base/gate transistor with its base/gate being biased by a bias voltage (Vb1) and the second transistor (115) is arranged as a common emitter/source transistor with its emitter/source being grounded. The power detector also comprises a diode or current source connected to ground from the emitter/source of the first transistor (110), in which power detector an input port (105) is connected to the emitter of the first transistor (110) and to the base/gate of the second transistor (115), and an output port (125) is connected to the collectors/drains of the first (110) and second transistor (115), said collectors/drains also being connected to a DC supplier (Vc) via a first resistor (130).
摘要翻译：包括第一（110）和第二（115）双极结/ FET晶体管的功率检测器（100,200,300,400）。第一晶体管（110）被布置为公共基极/栅极晶体管，其基极/栅极被偏置电压（Vb1）偏置，并且第二晶体管（115）被布置为具有其发射极/源极的公共发射极/源极晶体管接地功率检测器还包括从第一晶体管（110）的发射极/源极接地的二极管或电流源，其中功率检测器的输入端口（105）连接到第一晶体管（110）的发射极，并且第二晶体管（115）的基极/栅极和输出端口（125）连接到第一晶体管（110）和第二晶体管（115）的集电极/漏极，所述集电极/漏极还连接到DC供应器（Vc）经由第一电阻器（130）。

6. 发明授权

US09261543B2 Power detection device and method of driving the same 有权
标题翻译：功率检测装置及其驱动方法
公开(公告)号：US09261543B2
公开(公告)日：2016-02-16
申请号：US13365612
申请日：2012-02-03
申请人： Yutaka Mimino
发明人： Yutaka Mimino
IPC分类号： H04B17/00 , G01R21/10 , H04B1/04
CPC分类号： G01R21/10 , H04B2001/0416
摘要： A power detection device includes first and second power detection circuits configured to output a first and second detection signals, respectively, each including a half-wave rectifier circuit having a transistor, and connected to an RF input terminal, a ripple filter having a transistor and a capacitor, and configured to filter ripples of a rectified signal from the half-wave rectifier circuit, a transmission circuit having a pair of transistors, and connected to the half-wave rectifier circuit and the ripple filter to transfer the rectified signal to the ripple filter, and a constant current source having a transistor to supply a current to the half-wave rectifier circuit, the ripple filter, and the transmission circuit, and a subtraction circuit configured to receive the first and second detection signals and to calculate a difference between the two signals.
摘要翻译：功率检测装置包括第一和第二功率检测电路，其被配置为分别输出第一和第二检测信号，每个检测信号包括具有晶体管的半波整流电路，并连接到RF输入端，具有晶体管的纹波滤波器和电容器，被配置为从半波整流电路滤波整流信号的波纹，具有一对晶体管的发送电路，并连接到半波整流电路和纹波滤波器，以将整流信号传送到纹波滤波器和恒流源，其具有用于向半波整流电路，波纹滤波器和发送电路提供电流的晶体管，以及减法电路，被配置为接收第一和第二检测信号，并计算两个信号。

7. 发明申请

US20050275397A1 Non-intrusive power monitor 有权
标题翻译：非侵入式电源监视器
公开(公告)号：US20050275397A1
公开(公告)日：2005-12-15
申请号：US10868374
申请日：2004-06-15
申请人： Simon Lightbody , Michael Teachman , Colin Gunn , Benedikt Huber
发明人： Simon Lightbody , Michael Teachman , Colin Gunn , Benedikt Huber
IPC分类号： G01R15/14 , G01R15/16 , G01R15/18 , G01R19/00 , G01R21/06 , G01R21/10 , G01R21/133 , H01L31/00 , H05K1/00 , H05K1/02 , H05K1/16
CPC分类号： G01R15/142 , G01R15/16 , G01R15/181 , G01R21/06 , H05K1/0268 , H05K1/0393 , H05K1/165 , H05K2201/051
摘要： Systems and methods for monitoring power in a conductor. A flex circuit may include multiple layers including a voltage sensing layer, a coil layer, and a ground layer. The coil layer includes traces that form a coil structure around a conductor when the flex circuit is wrapped around the conductor. The coil layer generates a voltage that may be integrated to determine a current in the conductor. When the flex circuit is wrapped around the conductor, the voltage sensing layer is closest to the conductor. The voltage sensing layer forms a capacitor with the conductor. Using an adjustable capacitive voltage divider, the voltage of the conductor may be determined from a voltage signal received from the voltage sensing layer.
摘要翻译：用于监测导体功率的系统和方法。柔性电路可以包括多个层，包括电压感测层，线圈层和接地层。线圈层包括当柔性电路绕导体缠绕时在导体周围形成线圈结构的迹线。线圈层产生可以被积分以确定导体中的电流的电压。当柔性电路缠绕在导体上时，电压感测层最靠近导体。电压感测层与导体形成电容器。使用可调电容分压器，可以根据从电压感测层接收的电压信号来确定导体的电压。

8. 发明授权

US6104182A Method of deriving a signal indicating an oscillation in an electric power supply system 有权
标题翻译：导出指示电力供应系统中的振荡的信号的方法
公开(公告)号：US6104182A
公开(公告)日：2000-08-15
申请号：US170889
申请日：1998-10-13
申请人： Andreas Jurisch , Micheal Schwenke
发明人： Andreas Jurisch , Micheal Schwenke
IPC分类号： G01R21/10 , H02J3/24 , G01R7/00
CPC分类号： G01R21/10 , H02J3/24
摘要： Current and voltage space vectors of the positive sequence system are formed from phase current and phase voltage sampling values of an electric power supply system, and power quantities of the positive sequence system are derived from them. System frequency components are eliminated from these power quantities by a least squares estimate, thus forming a measured active power quantity of the positive sequence system and a measured reactive power quantity of the positive sequence system. By forming quotients with a measured current quantity of the positive sequence system, also obtained using the least squares estimate, impedance values of the positive sequence system are also obtained. These are tested for monotony and abrupt changes and a suspected oscillation signal is formed, if applicable. In addition, to obtain an oscillation confirmation signal, the respective center point of the circle of the trajectory formed by the impedance values of the positive sequence system is determined and compared with the reactance value of the positive sequence system with regard to its imaginary part. If a suspected oscillation signal and an oscillation confirmation signal occur simultaneously, the oscillation signal is formed.
摘要翻译：正序系统的电流和电压空间矢量由电力供应系统的相电流和相电压采样值形成，并且从它们得到正序系统的功率量。通过最小平方估计从这些功率量中消除系统频率分量，从而形成正序列系统的测量有功功率量和正序系统的测量无功功率量。通过使用最小二乘估计获得的具有测量的正序列系统的电流量的商，通过形成正序列系统的阻抗值。这些被测试为单调和突变，如果适用，形成怀疑的振荡信号。此外，为了获得振荡确认信号，确定由正序系统的阻抗值形成的轨迹的圆的各个中心点，并将其与正序系统相对于其虚部的电抗值进行比较。如果可疑振荡信号和振荡确认信号同时发生，则形成振荡信号。

9. 发明授权

US5204613A RF power sensor having improved linearity over greater dynamic range 失效
标题翻译：具有改进的线性的RF功率传感器在更大的动态范围内
公开(公告)号：US5204613A
公开(公告)日：1993-04-20
申请号：US694885
申请日：1991-05-02
申请人： Stephen C. Cripps , Thomas R. Allen
发明人： Stephen C. Cripps , Thomas R. Allen
IPC分类号： G01R1/067 , G01R21/10
CPC分类号： G01R21/10 , G01R1/06772
摘要： A radio frequency ("RF") power sensor providing RF signal power sensing with reduced dependency upon its input signal power level includes multiple series-connected diodes for detecting the power of an input RF signal and providing an output voltage representing that power. The multiple series-connected diodes couple the input node shunted by an input load resistor to the output node shunted by an output filter capacitor. Using multiple series-connected diodes results in reduced reverse bias voltages across the diodes (presented by the charged output filter capacitor), thereby increasing their junction capacitances. These increased junction capacitances, in turn, result in reduced fractional changes thereof (e.g. capacitance "modulation") over changes in the input RF signal power. This reduction in fractional capacitance changes as a function of input signal power variations, further in turn, results in reduced input signal power dependency of the sensors' impedances and sensitivities. Therefore, the power detection performed by the diodes becomes more predictable, e.g. more linear, over a broader input RF signal power range.
摘要翻译：提供RF信号功率感测的射频（“RF”）功率传感器，其对其输入信号功率电平的依赖性降低，包括用于检测输入RF信号的功率并提供表示该功率的输出电压的多个串联二极管。多个串联二极管将由输入负载电阻分流的输入节点耦合到由输出滤波电容器分流的输出节点。使用多个串联连接的二极管导致二极管（由充电输出滤波电容器呈现）的反向偏置电压降低，从而增加其结电容。这些增加的结电容反过来导致其输入RF信号功率的变化减小其分数变化（例如电容“调制”）。分数电容的这种减小作为输入信号功率变化的函数而变化，进而导致传感器阻抗和灵敏度的输入信号功率依赖性降低。因此，由二极管执行的功率检测变得更可预测，例如。更线性，更宽的输入射频信号功率范围。

10. 发明授权

US4970456A Temperature compensated power detector 失效
标题翻译：温度补偿功率检测器
公开(公告)号：US4970456A
公开(公告)日：1990-11-13
申请号：US294093
申请日：1989-01-09
申请人： Don R. Holcomb , David Q. Ngo
发明人： Don R. Holcomb , David Q. Ngo
IPC分类号： G01R1/44 , G01R21/10
CPC分类号： G01R21/10 , G01R1/44
摘要： A temperature compensated power detector utilizes a temperature compensating diode connected to an inverting input of an amplifier to enable the amplifier to substantially cancel out undesirable temperature effects caused by a power level detector diode coupled to the non-inverting input of the amplifier. As a result, the amplifier output voltage tends to remain constant over temperature in response to a fixed power level being applied to the detector. A lookup table is utilized to determine the power level corresponding to a power detector output voltage of a particular magnitude.
摘要翻译：温度补偿功率检测器利用连接到放大器的反相输入端的温度补偿二极管使得放大器能够基本上消除由耦合到放大器的非反相输入端的功率电平检测器二极管引起的不期望的温度效应。结果，响应于施加到检测器的固定功率电平，放大器输出电压倾向于在温度上保持恒定。使用查找表来确定与特定大小的功率检测器输出电压相对应的功率电平。

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