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134 条记录 (耗时 0.011 秒)

    Contactless measurement of electrical properties of wafer shaped materials
    101.
    发明公开
    Contactless measurement of electrical properties of wafer shaped materials 失效
    联系电话电子邮件材料（Eigenschaften vonscheibenförmigem）材料。

    公开(公告)号：EP0175182A1

    公开(公告)日：1986-03-26

    申请号：EP85110805.0

    申请日：1985-08-28

    申请人： International Business Machines Corporation

    发明人： Braslau, Norman

    IPC分类号： G01R27/04 ,  G01N22/00

    CPC分类号： G01R31/302 ,  G01R27/04

    摘要： Electrical parameter values, such as semiconductor sheet resistivity and mobility values, of a sample are measured in an apparatus of the kind in which the sample is positioned in a microwave guide and the microwave signal reflected from the sample is compared to the incident microwave to provide information about the values. The sample, a wafer 1, is positioned between parallel plates 2, in a wafer holder 4, the plate 3 comprising support plate 30, 31 and wafer backing plate 33 held in place by vacuum chamber 34, 35. The plate 2 has a groove 27 positioned and dimensioned to provide a so-called "choke flange" which compensates for the transmission discontinuity in the waveguide caused by the gap between the plates 2, 3. The wafer 1 extends right across the total cross-section of the waveguide formed by the duct 7, 8. The end of the duct 7 is coupled to a microwave source and the end of duct 8 is terminated in a short circuit, the spacing of which from the sample can be adjusted.

    摘要翻译： 将样品定位在微波导管中的类型的装置中测量样品的电参数值，例如半导体薄层电阻率和迁移率值，并将从样品反射的微波信号与入射微波进行比较，以提供 有关价值的信息。 样品（晶片1）位于晶片保持器4中的平行板2,3之间，板3包括支撑板30,31和通过真空室34,35保持就位的晶片背衬板33。 板2具有定位和尺寸设置的槽27，以提供所谓的“扼流圈法兰”，其补偿由板2,3之间的间隙引起的波导中的传输不连续性。 晶片1正好跨越由导管7,8形成的波导的整个横截面。 管道7的端部连接到微波源，并且管道8的端部以短路方式终止，其距离样品的间距可以被调整。

    A METHOD AND SYSTEM FOR DYNAMIC FAULT DETECTION IN AN ELECTRIC GRID
    102.
    发明公开
    A METHOD AND SYSTEM FOR DYNAMIC FAULT DETECTION IN AN ELECTRIC GRID 审中-公开

    公开(公告)号：EP4236024A3

    公开(公告)日：2023-10-04

    申请号：EP23173030.0

    申请日：2017-06-04

    申请人： Electrical Grid Monitoring Ltd.

    发明人： MIRON, Eyal

    IPC分类号： G01R19/25 ,  G01R27/04 ,  G01R27/32 ,  G01R31/08 ,  G01R31/52

    摘要： A system for detecting a fault in an electric grid, including a plurality of grid measuring devices distributed in the electric grid, being operative to measure current and/or voltage with their respective time of occurrence, enabling a user to define at least one fault type, and at least one rule for detecting the fault type, the rule associating the fault type with at least one of the measurements, executing the measurements, and analyzing the measurements according to the rule to detect a fault.

    RF IMPEDANCE MEASUREMENT CIRCUIT
    103.
    发明公开
    RF IMPEDANCE MEASUREMENT CIRCUIT 审中-公开

    公开(公告)号：EP3933416A1

    公开(公告)日：2022-01-05

    申请号：EP20183305.0

    申请日：2020-06-30

    申请人： Imec VZW

    发明人： ZHANG, Yang ,  WAMBACQ, Pierre

    IPC分类号： G01R27/04 ,  H04B1/04 ,  H04B1/18 ,  H04B17/10 ,  H03H7/40

    摘要： An RF impedance measurement circuit (100), comprises a sensing capacitor (104) connectable in series with an RF signal path (102); a first amplitude detector (116a) and a first frequency divider (108a), each coupled, with said measurement circuit in operation, to said RF signal path (102) at a first terminal (104a) of said sensing capacitor (104); a second amplitude detector (116b) and a second frequency divider (108b), each coupled, with said measurement circuit in operation, to a second terminal (104b) of said sensing capacitor (104); and a phase detection circuit (110a) connected to an output (I) of said first frequency divider (108a) and to an output (I) of said second frequency divider (108b).

    SIGNAL GENERATION METHOD, SIGNAL GENERATION DEVICE AND PROGRAM
    106.
    发明公开
    SIGNAL GENERATION METHOD, SIGNAL GENERATION DEVICE AND PROGRAM 审中-公开

    公开(公告)号：EP3264636A4

    公开(公告)日：2018-02-28

    申请号：EP16755006

    申请日：2016-02-25

    申请人： PANASONIC IP CORP AMERICA

    发明人： AOYAMA HIDEKI ,  OSHIMA MITSUAKI

    IPC分类号： H04B10/116 ,  G01R27/04 ,  G06F17/30 ,  H04B3/14 ,  H04L27/26 ,  H04L29/08

    CPC分类号： H04L67/1006 ,  G01R27/04 ,  G06F17/3089 ,  H04B3/14 ,  H04B10/116 ,  H04L27/2602 ,  H04L67/02

    摘要： A signal generating method includes: a step SD11 of determining, as a method for transmitting a visible light signal from a transmitter, one of a single-frame transmitting method for transmitting data as one frame and a multiple-frame transmitting method for transmitting the data while dividing the data into a plurality of frames; a step SD12 of, when the multiple-frame transmitting method is determined, generating partition type information indicating a type of data to be transmitted, and of generating combination data by adding the partition type information to the data to be transmitted; a step SD13 of generating the plurality of frames each of which includes each of a plurality of data parts by dividing the combination data into the plurality of data parts; and a step SD14 of generating the visible light signal by adding a preamble to a head of each of the plurality of frames.

    Internal chirp generator with time aligned acquisition in a mixed-domain oscilloscope
    107.
    发明公开
    Internal chirp generator with time aligned acquisition in a mixed-domain oscilloscope 审中-公开
    Interner Wobbelgenerator mit zeitangepasster Erfassung in einemMehrdomänen-Oszilloskop

    公开(公告)号：EP2725365A3

    公开(公告)日：2017-03-15

    申请号：EP13189378.6

    申请日：2013-10-18

    申请人： Tektronix, Inc.

    发明人： Dalebroux, Donald

    IPC分类号： G01R13/02 ,  G01R31/28 ,  G01R27/04 ,  G01R27/28

    摘要： A mixed-domain oscilloscope (MDO 105) includes a signal generator (160) configured to generate a test signal (137) having a span ranging from a user-configurable start frequency to a user configurable stop frequency, an output channel (115) coupled to the signal generator and configured to transmit the test signal, an RF input channel (120) configured to receive a return signal (142) based on the test signal, an acquisition section (114) configured to acquire and digitize the return signal as an acquisition record, and a ramp busy signal generator (170) configured to substantially time-align the acquisition record with the test signal. The test signal includes a chirp signal that is a linearly swept sine wave that spans between the user-configurable start frequency and the user-configurable stop frequency. Methods include calibrating the chirp signal, connecting the MDO in various test configurations relative to external return loss bridge and DUT equipment, and performing measurements such as S21 (db), S11(db), and distance-to-fault type measurements.

    摘要翻译： 混合域示波器（MDO 105）包括信号发生器（160），其被配置为生成具有范围从用户可配置起始频率到用户可配置停止频率的跨度的测试信号（137），输出通道（115） 信号发生器并且被配置为传送测试信号，RF输入通道（120），被配置为基于测试信号接收返回信号（142）;获取部分（114），被配置为获取并将所述返回信号数字化为 采集记录和斜坡忙信号发生器（170），其被配置为使采集记录与测试信号基本上时间对齐。 测试信号包括线性调频脉冲信号，其是线性扫描正弦波，其跨越用户可配置的起始频率和用户可配置的停止频率。 方法包括校准啁啾信号，相对于外部回波损耗桥和DUT设备将MDO连接在各种测试配置中，并执行诸如S21（db），S11（db）和距离到故障类型测量的测量。

    IMPEDANCE MEASUREMENT AND TUNING SYSTEM
    108.
    发明公开
    IMPEDANCE MEASUREMENT AND TUNING SYSTEM 审中-公开
    系统ZUR IMPEDANZMESSUNG UND -REGELUNG

    公开(公告)号：EP3067703A1

    公开(公告)日：2016-09-14

    申请号：EP16159774.5

    申请日：2016-03-11

    申请人： NXP B.V.

    发明人： Salfelner, Anton

    IPC分类号： G01R27/04 ,  H03H7/40 ,  H04B1/04 ,  H03D7/00

    CPC分类号： G01R17/02 ,  G01R27/04 ,  H03H7/40 ,  H04B1/0458 ,  H04B1/18

    摘要： A system for measuring impedance (200) is disclosed. The system is designed to be connected with an external unknown impedance. The system includes a reference signal generator (218), an impedance component (104) coupled to the reference signal generator (218), a local oscillator (208) configured to generate a signal of a selected frequency, a plurality of frequency mixers (206, 210, 214) coupled to the impedance component (104) and the local oscillator (208) and a switch (202) connected across the impedance component (104) in such a way that the impedance component is bypassed when the switch is on.

    摘要翻译： 公开了一种用于测量阻抗（200）的系统。 该系统设计为与外部未知阻抗相连。 该系统包括参考信号发生器（218），耦合到参考信号发生器（218）的阻抗分量（104），配置成产生所选频率的信号的本地振荡器（208），多个频率混频器 ，耦合到所述阻抗分量（104）和所述本地振荡器（208）的开关（202）以及跨所述阻抗分量（104）连接的开关（202），使得当所述开关导通时所述阻抗分量被旁路。