首页 / 国际专利分类库 / 物理 / 测量 / 测量电变量;测量磁变量 / 测量频率的装置;频谱分析装置 / .频率测量装置,如脉冲重复率的测量{(应用振荡器G01R19/04));电流或电压周期的测量装置(短时间间隔的测量入G04F)
序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 基于三端双向可控开关调光器的占空因子探测 CN201180053471.3 2011-11-02 CN103190062A 2013-07-03 埃里克·金; 约翰·L·梅安森
一种用于从可控控制调光器操作高效照明装置的电源电路,通过周期性地探测该调光器的输出端来确定调光值,即调光器的输出端的占空因子。在探测在调光器的开启时刻开始并且持续直到已经收集足够的信息来正确地预测给调光器的输入端供电的AC线路电压的下一个过零时刻的时间间隔期间,在调光器的输出端上施加最小的电导。调光值从在预测过零时刻和调光器的下一个开启时刻之间的时间间隔确定。可以在AC线路频率的奇数半周期的间隔执行该探测以便DC偏差引入到调光器的内部定时电路中。AC线路频率也可以从在预测过零时刻之间的时间间隔确定。
122 用于监控电网状态的方法和设备 CN201080029632.0 2010-06-23 CN102472780A 2012-05-23 阿尔弗烈德·比克曼; 沃克尔·迪德里克斯
发明涉及一种用于检测具有第一相、第二相和第三相的三相交流电压电网的电变量的方法,其包括如下步骤:分别在第一时刻测量第一相、第二相和第三相相对于中性导体的电压值,将第一时刻的三个电压值变换到具有电压幅度和相位的极坐标中,针对至少一个其他时刻重复测量和变换,以及根据变换到极坐标的电压值确定所述相中的至少之一的当前频率、电压幅度和/或相位角。
123 频率测量装置 CN200780024542.0 2007-02-19 CN101479612A 2009-07-08 关建平
发明提供一种频率测量装置,用积分法求出电压旋转矢量的振幅、弦长和旋转相位,进而求旋转相位角变化率和旋转矢量旋转加速度变化率,通过逐步判别频率变化率,从而测量动态频率。
124 频率变化测定装置 CN01109553.9 2001-03-30 CN1158534C 2004-07-21 山内常生
一种频率变化测定装置,不需要为了稳定基准时钟振荡器的频率而设置耗电大的恒温槽本装置,包括:将被测信号分频并输出分频信号的分频装置、对分频信号计数并计算分频次数的第1计数装置、传送分频次数的分频次数传送装置、接收分频次数的分频次数接收装置、对基准时钟振荡器的频率输出进行计数的第2计数装置、将由基准时振荡器得到的频率输出计数值进行存的锁存装置、根据计数值以及分频次数求出频率变化的运算处理装置。
125 一种检测预定频率的交流信号的方法及检测器电路 CN95196167.5 1995-10-11 CN1082666C 2002-04-10 哈里·赫尔梅; 卡伊·诺尔德斯特罗姆
发明涉及在一个已接收的信号中检测一个预定频率的交流信号的方法。为了实现这个简单易行的方法,它包含将上述已接收的信号馈送到一个交换装置(MOX)的输入(0)的若干步骤,该交换装置包含几个输出(1-4)和用来交替地连接该输入到每个上述输出(1-4)的装置,这是由馈给交换装置的一个时钟脉冲来同步的,馈送一个时钟脉冲给交换装置,利用选择时钟脉冲频率使得在待检测信号的一个周期内交换装置的输入(0)实质只有一次被连接到交换装置的每个输出(1-4),滤除从交换装置的输出中所得到的信号,监测已滤波的信号,并且当任一被监测的信号的电压电平超过一个预定电平时,或是当两个被监测信号间的电位差超过一个预定的阈电平时,检测出待检测的信号的存在。本发明还涉及一个检测器电路
126 检测信号的方法 CN95196167.5 1995-10-11 CN1162996A 1997-10-22 哈里·赫尔梅; 卡伊·诺尔德斯特罗姆
发明涉及在一个已接收的信号中检测一个预定频率的交流信号的方法。为了实现这个简单易行的方法,它包含将上述已接收的信号馈送到一个交换装置(MOX)的输入(0)的若干步骤,该交换装置包含几个输出(1-4)和用来交替地连接该输入到每个上述输出(1-4)的装置,这是由馈给交换装置的一个时钟脉冲来同步的,馈送一个时钟脉冲给交换装置,利用选择时钟脉冲频率使得在待检测信号的一个周期内交换装置的输入(0)实质只有一次被连接到交换装置的每个输出(1-4),滤除从交换装置的输出中所得到的信号,监测已滤波的信号,并且当任一被监测的信号的电压电平超过一个预定电平时,或是当两个被监测信号间的电位差超过一个预定的阈电平时,检测出待检测的信号的存在。本发明还涉及一个检测器电路
127 用于测量可动部件之速度的设备 CN86107433 1986-12-10 CN1012654B 1991-05-22 彼得·迪安·翁尼安
用于测量速度的设备,利用由传感器提供的正交输入信号,并用一个信号的导数除以另一个值来得到测量速度,该设备可以是数字或模拟的。该设备尤其适合于测量由一个光栅和传感器装置提供的正交信号的速度。
128 信号频率相位的数字化测定法及其装置 CN88103012 1988-05-21 CN88103012A 1988-12-21 希尔瓦英·方坦尼斯; 帕特里斯·布罗特; 安德里·马古纳德; 希里·奎恩昂; 布里吉特·罗曼
一种信号频率相位的数字化测定法包括下列步骤:对待分析信号的取样数进行分析,以便将其转换成实部与所述信号相符的分析信号;以估价量与选择标准为基础在信号的相位上对待分析参数进行总体估价,而不必分别或同时使用富里叶变换型算子或任何前提测试,将所得实部信号与从估价参数所得信号之间的差别加以估价,从而可以数字信号的形式提供与已分析信号的品质及估价值的可靠性有关的数据。本发明特别适用于微波
129 用于从周期性参考信号确定信号的频率的装置 CN201620330862.5 2016-04-18 CN205847230U 2016-12-28 M·乌德比纳; S·德迪厄
本公开的实施例涉及用于从周期性参考信号确定信号的频率的装置。信号(SIG)的频率使用在周期性参考信号(REF)的周期期间的所述信号(SIG)的周期的数目的滑动平均值来从参考信号(REF)确定。
130 涡轮式流量计的监控模和联接到涡轮式流量计的装置 CN201520971539.1 2015-11-30 CN205483093U 2016-08-17 格雷格·爱德华·金德利; 罗伯特·迈克尔·温因贝格
本实用新型公开了一种用于涡轮式流量计的监控模和一种联接到涡轮式流量计的装置。所述监控模块包括接收器,该接收器接收由涡轮式流量计发出的一系列脉冲。频率识别器识别所述一系列脉冲中的脉冲的频率,并且平均值识别器确定脉冲的频率的平均频率。警报系统使用所述平均频率以确定何时应当发出警报。
131 PERFORMANCE EVALUATION METHOD OF SUSPENDED CHANNEL PLASMA WAVE TRANSISTOR PCT/KR2015014575 2015-12-31 WO2017115895A9 2017-08-10 KIM KYUNG-ROK; PARK JONG-YUL; KIM SUNG-HO; JUNG YU-JUNG
The purpose of the present invention is to provide a performance evaluation method of a suspended channel plasma wave transistor, which evaluates a terahertz oscillation possibility of a corresponding device by using a physical characteristic of the suspended channel plasma wave transistor. In order to achieve the purpose, a performance evaluation method of a suspended channel plasma wave transistor according to the present invention comprises: an x-axis configuration step for configuring an electron drift velocity as an x-axis; a y-axis configuration step for configuring a plasma wave velocity as a y-axis; and a device performance determination step for determining an operation of a device by generating a design window, using a relation expression of a plasma wave velocity according to an electron drift velocity, and a plasma wave generation condition of the suspended channel plasma wave transistor.
132 METHOD AND DATA PROCESSING ARRANGEMENT FOR DETERMINING THE FREQUENCY, AMPLITUDE AND ATTENUATION OF AT LEAST ONE OUTPUT OSCILLATION IN AN ELECTRICAL ENERGY SUPPLY NETWORK PCT/EP2012070006 2012-10-10 WO2014056531A3 2014-06-12 LITZINGER ANDREAS; PIEL STEFAN
A method for determining frequency, amplitude and attenuation of at least one output oscillation (7) in an electrical energy supply network, according to which method a time window (4, 5, 6) of predefined duration is used, and momentary values for the output determined within the time window (4, 5, 6) are used to determine frequency, amplitude and attenuation of the at least one output oscillation (7), characterized in that at least one further time window (6) is used, wherein all the time windows (4, 5, 6) are each of different duration, and that time window, within the duration of which a predefined number of oscillation processes of the output oscillation concerned falls, is used for determining frequency, amplitude and attenuation. The invention also relates to a data processing arrangement.
133 TIMING-DRIFT CALIBRATION PCT/US2011060213 2011-11-10 WO2012082274A3 2012-08-16 FRANS YOHAN U; ELLIS WAYNE F; BANSAL AKASH
The disclosed embodiments relate to components of a memory system that support timing-drift calibration. In specific embodiments, this memory system contains a memory device (or multiple devices) which includes a clock distribution circuit and an oscillator circuit which can generate a frequency, wherein a change in the frequency is indicative of a timing drift of the clock distribution circuit. The memory device also includes a measurement circuit which is configured to measure the frequency of the oscillator circuit. Additionally, the memory system contains a memory controller which can transmit a request to the memory device to trigger the memory device to measure the frequency of the oscillator circuit. The memory controller is also configured to receive the measured frequency from the memory device and uses the measured frequency to determine the timing drift in the memory device.
134 PLASMA SUPPLY ARRANGEMENT PCT/EP2008005987 2008-07-22 WO2009012969A2 2009-01-29 KIRCHMEIER THOMAS; KNAUS HANNS-JOACHIM; GLUECK MICHAEL; WINDISCH HANS-JUERGEN
The invention relates to a plasma supply arrangement (200, 201, 202) having at least two plasma supply devices (10, 10a, 10b, 10c, 10d) for producing a power output of > 500 W at a substantially constant base frequency of > 3 MHz and for supplying power to a plasma process to which the produced power output is supplied, and from which reflected output is conducted back to the plasma supply devices (10, 10a, 10b, 10c, 10d) at least in the case of maladjustment, comprising at least one inverter (11, 12) connected to a DC power supply (13, 14, 13', 14'), the inverter having at least one switching element (11.1, 11.2, 12.1, 12.2), and having a base network (15, 15') each and at least one coupler (59), wherein the power supplies of the plasma supply devices (10, 10a, 10b, 10c, 10d) are consolidated via at least one coupler (59), wherein each base network (15, 15') has a dedicated power measurement device.
135 METHOD AND DEVICE FOR DETECTING ISOLATED OPERATION OF POWER GENERATION INSTALLATIONS PCT/EP2012068243 2012-09-17 WO2013041484A3 2013-06-20 HESSE RALF; TURSCHNER DIRK; BECK HANS-PETER; CHEN YONG; WERTHER BENJAMIN
The invention describes a method for detecting isolated operation of power generation installations (5) which are set up to generate electrical power and can be coupled to an interconnected power supply system (1) for feed operation. The power generation installation (5) operates in isolation with respect to the interconnected power supply system when no power is exchanged between the power generation installation (5) and the interconnected power supply system (1). The method has the steps of: recording the temporal profile of the mains frequency present in the region in which the power generation installation (5) is connected to the interconnected power supply system (1) and evaluating the temporal profile of the mains frequency in order to detect isolated operation. Evaluating the temporal profile of the mains frequency comprises analysing the statistical features of the noise component of the temporal profile of the frequency of the mains voltage at the point at which the power generation installation (5) is connected to the interconnected power supply system (1), and isolated operation is detected using statistical behavioural features identified during analysis.
136 CURRENT MEASUREMENT PCT/GB2012052251 2012-09-12 WO2013038176A2 2013-03-21 WOOD STEPHEN JAMES MARTIN; HURWITZ JONATHAN EPHRAIM DAVID; DANESH SEYED AMIR ALI
The present invention relates to current measurement apparatus100. The current measurement apparatus100 comprises a measurement arrangement 110, 114 which is configured to be disposed in relation to a load108 which draws a current signal, the measurement arrangement being operative when so disposed to measure the load drawn current signal. The current measurement apparatus100 also comprises a signal source112 which is operative to apply a reference input signal to the measurement arrangement 110,114 whereby an output signal from the measurement arrangement comprises a load output signal corresponding to the load drawn current signal and a reference output signal corresponding to the reference input signal. The current measurement apparatus100 further comprises processing apparatus 116 which is operative to receive the output signal and to make a determination in dependence on the reference output signal and the load output signal, the determination being in respect of at least one of the load drawn current signal and electrical power consumed by the load.
137 DUTY FACTOR PROBING OF A TRIAC-BASED DIMMER PCT/US2011058884 2011-11-02 WO2012061454A3 2012-08-23 KING ERIC; MELANSON JOHN L
A power supply circuit for operating high-efficiency lighting devices from a thyristor- controlled dimmer determines the dimming value, i.e., the duty factor of the output of the dimmer by periodically probing the output of the dimmer. A minimum conductance is applied across the output of the dimmer during probing intervals that begin at the turn-on time of the dimmer and last until enough information has been gathered to correctly predict a next zero crossing of the AC line voltage that supplies the input of the dimmer. The dimming value is determined from the time interval between the predicted zero-crossing and a next turn-on time of the dimmer. The probing can be performed at intervals of an odd number of half-cycles of the AC line frequency so that a DC offset is not introduced within internal timing circuits of the dimmer. The AC line frequency can also be determined from a time interval between the predicted zero crossings.
138 FREQUENCY MEASURING AND CONTROL APPARATUS WITH INTEGRATED PARALLEL SYNCHRONIZED OSCILLATORS PCT/US2011028859 2011-03-17 WO2011116218A2 2011-09-22 PORTHUN STEFFEN
A frequency measuring and control apparatus includes a plurality of synchronized oscillators integrated in parallel into one programmable logic device.
139 PLASMA SUPPLY DEVICE PCT/EP2008005314 2008-06-30 WO2009012867A3 2009-03-12 KIRCHMEIER THOMAS; GLUECK MICHAEL
A plasma supply device generates an output power greater than 500 W at an essentially constant basic frequency greater than 3 MHz and powers a plasma process to which is supplied the generated output power, and from which reflected power is returned to the plasma supply device. The plasma supply device includes at least one inverter connected to a DC power supply, which inverter has at least one switching element, and an output network. The output network is arranged on a printed circuit board. The at least one output network includes at least one inductance that has at least one magnetic field strengthening element that includes at least two U-shaped bodies that have substantially identical U-shaped cross-sections and have different lengths to thereby adjust the inductivity of the inductance.
140 METHOD OF INSTANTANEOUSLY DETERMINING OR ESTIMATING THE FREQUENCY OR AMPLITUDE OF AN INPUT SIGNAL PCT/IB2007050238 2007-01-24 WO2007088499A2 2007-08-09 HERSELMAN PAUL LE ROUX
A method of instantaneously determining or estimating the frequency of an input signal includes mixing a digitally sampled and quantized input signal (12) by a time shifted replica of the input signal (12), where the time shift equals an integer multiple of a sampling period of the input signal (12), thereby producing a mixed signal. The mixed signal is filtered with a low-pass filter producing a filtered signal, which is used to obtain an estimate of the frequency of the input signal. The invention extends to an apparatus (8) for implementing the method in accordance with the invention. The invention also extends to a method of determining or estimating the amplitude of an input signal (12).
QQ群二维码
意见反馈