公开(公告)号：US3707675A

公开(公告)日：1972-12-26

申请号：US3707675D

申请日：1970-09-11

申请人： BAILEY METER CO

发明人： KRECHMERY ROGER L ,  SEABECK LEE A

IPC分类号： G01F1/60 ,  G01R7/00

CPC分类号： G01F1/60

摘要： A Measuring system for comparing the relative magnitudes of a first and a second D.C. input signal by symmetrically integrating the first input signal between time period intervals proportional to its magnitude relative to the magnitude of the second input signal so that pulses are generated at a frequency which is a multiple of the integrating cycle. The variable frequency pulses are either counted directly or are converted to a frequency variable train of voltage pulses, each of the pulse cycles of the train of pulses having the corresponding periodicity of the variable input frequency and each voltage pulse having a substantially constant pulse width; the train of pulses are used to modulate a voltage source output signal which, when subsequently averaged, provides an output signal that is proportional to the product of the modulated output signal of the voltage source and the input frequency.

摘要翻译： 一种用于比较第一和第二DC输入信号的相对幅度的测量系统，其通过在第一输入信号与第二输入信号的幅度成比例的时间间隔之间对称地积分第一输入信号，使得脉冲以 是积分循环的倍数。 可变频脉冲被直接计数或转换成电压脉冲的频率可变串，脉冲序列的每个脉冲周期具有相应的可变输入频率的周期性，并且每个电压脉冲具有基本上恒定的脉冲宽度; 脉冲串被用于调制电压源输出信号，当其后平均时，提供与电压源的调制输出信号与输入频率的乘积成比例的输出信号。

公开(公告)号：US3675125A

公开(公告)日：1972-07-04

申请号：US3675125D

申请日：1970-12-01

申请人： BBC BROWN BOVERI & CIE

发明人： JAECKLIN ANDRE

IPC分类号： G01R21/06 ,  G01R15/24 ,  G01R21/00 ,  G01R31/00 ,  G01R7/00

CPC分类号： G01R15/24 ,  G01R21/00

摘要： An optical wattmeter for measuring the magnitude of the instantaneous power being transmitted over a high voltage line utilizes a monochromatic circularly polarized light beam which is transmitted through an electro-optical modulator such as Kerr or Pockels cell subjected to an electric field produced by the high voltage line proportional to the voltage component of the power to be measured. The light beam, doubly refracted in the modulator thereby to produce an elliptically polarized beam, the eccentricity of the ellipse being variable with the line voltage, is passed through a circular quarter-wave plate and then delivered to a Faraday rotator which is subjected to a magnetic field produced by the high voltage line proportional to the current component of the power to be measured. The magnetic field produces a phase shift proportional to the magnetic field between the laevo-rotatory and dextro-rotatory components of the light beam which results in a change of inclination proportional to the magnetic field of the ellipse of the outcoming elliptically polarized beam. The elliptically polarized light beam emerging from the Faraday rotator thus containing data relative to the strength of the electric field as a function of the eccentricity of the ellipse and data relative to the strength of the magnetic field as a function of its inclination is then passed through a polarization type beam splitter such as a Wollaston prism which divides the light beam into two partial beams having different polarization directions, these partial beams then being passed respectively to photo-electric detectors which produce electrical intensities and which are then electrically substrated to produce an output current proportional to the product of the voltage on, and current flow in, the high voltage line at the point at which the instantaneous power level is measured.

摘要翻译： 用于测量通过高压线路传输的瞬时功率幅度的光学瓦特计使用单色圆偏振光束，其通过诸如克尔或普克尔斯电池的电光调制器传输，该电光调制器经受高电压产生的电场 线与要测量的功率的电压分量成比例。 光束在调制器中双重折射，从而产生椭圆偏振光束，椭圆偏心线随着线电压而变化，通过圆形四分之一波片，然后传送到法拉第旋转器，法拉第旋转器经受 由高电压线产生的磁场与待测功率的电流分量成比例。 磁场产生与光束的旋转旋转分量和右旋旋转分量之间的磁场成比例的相移，其导致与出射的椭圆偏振光束的椭圆的磁场成比例的倾斜变化。 从法拉第旋转器出射的椭圆偏振光束相对于电场强度而相对于电场的强度为椭圆偏心度的数据，相对于作为其倾斜度的函数的磁场的强度的数据则通过 诸如Wollaston棱镜的偏振光束分离器，其将光束分成具有不同偏振方向的两个部分光束，然后将这些部分光束分别传递到产生电强度的光电检测器，然后电光学地产生输出 电流与测量瞬时功率电平的点处的高电压线的电压和电流的乘积成比例。

公开(公告)号：US3593133A

公开(公告)日：1971-07-13

申请号：US3593133D

申请日：1967-12-27

申请人： RCA CORP

发明人： WISNER DANIEL A

IPC分类号： G01B7/28 ,  G01R19/16 ,  G01R7/00

CPC分类号： G01B7/282

摘要： An apparatus is provided for storing a voltage corresponding to one dimension, for storing a second voltage corresponding to a second dimension, for comparing two voltages, and for indicating whether the difference between the two voltages is within an acceptable range. Such an apparatus can be used to indicate whether the maximum and the minimum diameters of a round object are close enough in value for the round object to be acceptable for use in applications where perfect roundness is desirable.

公开(公告)号：US3477025A

公开(公告)日：1969-11-04

申请号：US3477025D

申请日：1967-04-12

申请人： VIKTOR IVANOVICH EFIMENKO

发明人： EFIMENKO VIKTOR IVANOVICH

IPC分类号： G01R27/12 ,  G01R7/00 ,  G01R1/20 ,  H01F5/00

CPC分类号： G01R27/12

公开(公告)号：US3460038A

公开(公告)日：1969-08-05

申请号：US3460038D

申请日：1965-12-17

申请人： GEN MOTORS CORP

发明人： ZIEGLER JOHN RICHARD

IPC分类号： G01R5/16 ,  G01R1/20 ,  G01R7/00 ,  G01R15/10

CPC分类号： G01R5/16

公开(公告)号：US3168689A

公开(公告)日：1965-02-02

申请号：US19314562

申请日：1962-05-08

申请人： GEN MOTORS CORP

发明人： GELENIUS ROBERT B

IPC分类号： G01D5/16 ,  G01R7/00

CPC分类号： G01D5/16 ,  G01R7/00

公开(公告)号：US09939474B2

公开(公告)日：2018-04-10

申请号：US15057527

申请日：2016-03-01

申请人： KABUSHIKI KAISHA TOSHIBA

发明人： Koichi Sato

IPC分类号： G01R7/00 ,  G01R22/06 ,  G01D4/00

CPC分类号： G01R22/063 ,  G01D4/002 ,  Y02B90/241 ,  Y04S20/32

摘要： According to one embodiment, a meter with a communication function includes a terminal block, boards and an antenna. The terminal block, to which a power line is connected, is disposed at a predetermined position of an installation portion. The boards are disposed to be stacked on the terminal block to keep a distance in a direction away from the installation portion. The antenna is formed on a plate substrate disposed in a direction intersecting with the boards.

公开(公告)号：US09018939B2

公开(公告)日：2015-04-28

申请号：US13302818

申请日：2011-11-22

申请人： Peter Sobotka ,  Xiao Ming Shi ,  Yan Long

发明人： Peter Sobotka ,  Xiao Ming Shi ,  Yan Long

IPC分类号： G01R7/00 ,  G01D4/00 ,  H04B3/54 ,  H04L29/08

CPC分类号： G01D4/002 ,  G01D4/004 ,  G01R19/0007 ,  G01R19/165 ,  G01R31/42 ,  G08C19/28 ,  H04B3/54 ,  H04B3/546 ,  H04B2203/5433 ,  H04L67/12 ,  Y02B90/241 ,  Y02B90/245 ,  Y02B90/246 ,  Y02B90/248 ,  Y04S20/30 ,  Y04S20/32 ,  Y04S20/40 ,  Y04S20/42 ,  Y04S20/52

摘要： The disclosure relates to a meter for monitoring usage of power provided by a power transmission system to a site. The meter comprises: a meter module connected to a power feed associated with the power transmission system to provide readings relating to the power; a messaging module to provide messages to the power transmission system; a connection to an alternating current (AC) power supply; a rectifier circuit connected to the AC power supply to generate a direct current (DC) power signal; a capacitive circuit connected to an output of the rectifier circuit, the capacitive circuit including a capacitor for storing a voltage for temporarily providing replacement power for the rectifier circuit; and a switching regulator circuit connected to the output of the rectifier circuit and the capacitive circuit, the switching regulator converting the DC voltage signal to a stepped down voltage signal for the meter module.

摘要翻译： 本公开涉及一种用于监测由电力传输系统提供给电力站点的电力的使用的仪表。 仪表包括：连接到与电力传输系统相关联的电力馈送的仪表模块，以提供与电力相关的读数; 消息传送模块，用于向电力传输系统提供消息; 与交流（AC）电源的连接; 连接到AC电源的整流电路，以产生直流（DC）电力信号; 连接到所述整流电路的输出的电容电路，所述电容电路包括用于存储用于暂时提供所述整流电路的替换电力的电压的电容器; 以及连接到整流电路和电容电路的输出的开关调节器电路，开关调节器将直流电压信号转换成用于仪表模块的降压电压信号。

公开(公告)号：US08937497B1

公开(公告)日：2015-01-20

申请号：US13951728

申请日：2013-07-26

申请人： Analog Devices, Inc.

发明人： David Tobin

IPC分类号： G01R7/00 ,  G01R19/165

CPC分类号： G06F1/26

摘要： An electrical circuit includes a comparator that receives a first signal at a first input pin, where the first signal is indicative of a current drawn from a power supply unit (PSU) that delivers power to an electronic component. The comparator substantially simultaneously receives a second signal at a second input pin, where the second signal is indicative of a voltage provided by the PSU to the electronic component and is set to a predetermined threshold. An output of the comparator changes if a difference exists between the first signal and the second signal. The electrical circuit includes a variable gain amplifier that provides the first signal to the comparator, where a gain of the variable gain amplifier is set according to the predetermined threshold.

摘要翻译： 电路包括比较器，其在第一输入引脚处接收第一信号，其中第一信号指示从向电子部件传送电力的电源单元（PSU）提取的电流。 比较器基本上同时在第二输入引脚处接收第二信号，其中第二信号指示由PSU提供给电子部件的电压并且被设置为预定阈值。 如果第一信号和第二信号之间存在差异，则比较器的输出变化。 该电路包括可变增益放大器，该可变增益放大器将第一信号提供给比较器，其中根据预定阈值设置可变增益放大器的增益。

公开(公告)号：US08816708B2

公开(公告)日：2014-08-26

申请号：US13547094

申请日：2012-07-12

申请人： Shin-Cheng Chu ,  Ching-Tsung Chen ,  Teng-Hui Lee ,  Chia-Jen Kao

发明人： Shin-Cheng Chu ,  Ching-Tsung Chen ,  Teng-Hui Lee ,  Chia-Jen Kao

IPC分类号： G01R31/00 ,  G01R1/00 ,  G01R3/00 ,  G01R5/00 ,  G01R7/00 ,  G01R9/00 ,  G01R11/00 ,  G01R13/00 ,  G01R17/00 ,  G01R19/00 ,  G01R35/00

CPC分类号： G01R1/00 ,  G01R3/00 ,  G01R5/00 ,  G01R7/00 ,  G01R9/00 ,  G01R11/00 ,  G01R13/00 ,  G01R17/00 ,  G01R19/00 ,  G01R31/002 ,  G01R31/129 ,  G01R35/00

摘要： Electronic test system and associated method, including a first and a second connection terminals respectively coupled to two pins of a chip under test, a signal source terminal coupled to a signal generator, a first and a second measurement terminals coupled to a tester, a fifth switch, a seventh switch and a switch circuit which has a first and a fourth front terminals coupled to the signal source terminal, has a first and a fourth back terminals coupled to the first and second connection terminals, and controls conduction between the first front terminal and the first back terminal, as well as conduction between the fourth front terminal and the fourth back terminal. The fifth switch is coupled between the fourth back terminal and the first measurement terminal, and the seventh switch is coupled between the first connection terminal and the second measurement terminal.

摘要翻译： 电子测试系统和相关方法，包括分别耦合到被测芯片的两个引脚的第一和第二连接端子，耦合到信号发生器的信号源端子，耦合到测试器的第一和第二测量端子，第五 开关，第七开关和开关电路，其具有耦合到信号源端子的第一和第四前端，具有耦合到第一和第二连接端子的第一和第四后端子，并且控制第一前端子 和第一后端子，以及第四前端子和第四后端子之间的导通。 第五开关耦合在第四后端子和第一测量端子之间，第七开关耦合在第一连接端子和第二测量端子之间。