公开(公告)号：US4480486A

公开(公告)日：1984-11-06

申请号：US469043

申请日：1983-02-23

申请人： Claudio Meisser ,  Hubert Lechner ,  Benedikt Steinle

发明人： Claudio Meisser ,  Hubert Lechner ,  Benedikt Steinle

IPC分类号： G01F1/66

CPC分类号： G01F1/662

摘要： In a housing two ultrasonic measuring transducers are arranged opposite of the two end faces of a test tube. The test tube providing a measuring section penetrates a separating wall and interconnects two distribution chambers of the housing. The fluid to be measured flows through the test tube and influences the transit time of the ultrasonic impulses released and received by the measuring transducers. The test tube provides a constant cross-section of metallic material along the length of the measuring section. The connection between the test tube and the separating wall consists of a nonmetallic material, thus preventing echoes which may penalize the measuring accuracy.

摘要翻译： 在壳体中，两个超声波测量传感器布置成与试管的两个端面相对。 提供测量部分的试管穿过分隔壁并互连壳体的两个分配室。 要测量的流体流过试管，并影响由测量传感器释放和接收的超声波脉冲的传播时间。 试管沿着测量部分的长度提供了恒定的金属材料横截面。 试管与分离壁之间的连接由非金属材料组成，从而防止可能损害测量精度的回波。

公开(公告)号：US4520311A

公开(公告)日：1985-05-28

申请号：US374797

申请日：1982-05-04

申请人： Jan Petr ,  Benedikt Steinle

发明人： Jan Petr ,  Benedikt Steinle

IPC分类号： G01R21/127 ,  H03K7/08 ,  G01R19/00

CPC分类号： G01R21/127 ,  H03K7/08

摘要： A current to pulse-sequence transducer for transforming a current to be measured into a sequence of pulses which has a certain mark-to-space ratio, includes a first transforming device for transforming the current to be measured into a measurement magnetic field, a second transforming device for generating a reference magnetic field, and magnetic field comparison device including a magnetoresistive thin film comparator normally providing a zero output when the fields are equal, but generating an impulse when the strength of one magnetic field exceeds that of the other, and an impulse processing device. The impulse processing device includes a differentiator amplifier connected to the output of the magnetoresistive thin film comparator and a Schmitt trigger circuit postcoupled to the differentiator amplifier. Thus there will be generated the sequence of pulses which have the mark-to-space ratio in dependence of the current to be measured; this will minimize the influence of any imbalance from the zero output when the fields are equal, and the influence of any external electromagnetic disturbance picked up by the transducer, which has a magnitude below the threshold value of the Schmitt trigger circuit.

摘要翻译： 将用于将待测电流变换成具有一定的空位比的脉冲序列的电流脉冲序列换能器包括用于将待测电流变换为测量磁场的第一变换装置，第二 用于产生参考磁场的变换装置，以及包括磁阻薄膜比较器的磁场比较装置，当磁场相等时通常提供零输出，但是当一个磁场的强度超过另一磁场的强度时产生脉冲， 脉冲处理装置。 脉冲处理装置包括连接到磁阻薄膜比较器的输出的微分放大器和与微分放大器后耦合的施密特触发器电路。 因此，将产生具有与要测量的电流相关的标记空间比的脉冲序列; 这将最小化当场相等时来自零输出的任何不平衡的影响，以及传感器拾取的任何外部电磁干扰的影响，其幅度低于施密特触发电路的阈值。

公开(公告)号：US4464625A

公开(公告)日：1984-08-07

申请号：US331981

申请日：1981-12-18

申请人： Heinz Lienhard ,  Jan Petr ,  Benedikt Steinle

发明人： Heinz Lienhard ,  Jan Petr ,  Benedikt Steinle

IPC分类号： G01R33/09 ,  G01R33/00 ,  G01R33/02

CPC分类号： G01R33/09

摘要： In a magnetoresistive current detector, which includes a conductor carrying a current to be measured, which in turn generates an external magnetic field, four bridge elements are connected to one another so as to constitute a Wheatstone bridge. The Wheatstone bridge is adapted to be fed by a supply current from a current- or voltage-source and includes two pairs of ferromagnetic and magnetoresistive thin films which have hard and easy axes, respectively, and each thin film constitutes a respective bridge element. The thin films of each pair are magnetostatically coupled to one another, so that the portion of the supply current flowing in each thin film of each pair generates an auxiliary magnetic field, which has a direction along the hard magnetic axis of the other thin film of the same pair. The thin films of each pair form bridge portions connected to one another at respective bridge output terminals and all these films have substantially equal respective thicknesses; the external magnetic field has a direction along the direction of the hard magnetic axes of each of the thin films.

摘要翻译： 在磁阻电流检测器中，其包括承载待测电流的导体，其继而产生外部磁场，四个桥元件彼此连接以构成惠斯通电桥。 惠斯通电桥适于由电流源或电压源的供电电流供电，并分别包含两对具有硬轴和易磁轴的铁磁和磁阻薄膜，每个薄膜构成相应的桥接元件。 每一对的薄膜彼此静磁耦合，使得在每对薄膜中流动的部分供电电流产生辅助磁场，该辅助磁场具有沿着另一薄膜的硬磁轴的方向 同一对 每对薄膜形成在相应桥接输出端子彼此连接的桥接部分，并且所有这些薄膜具有基本相等的各自的厚度; 外部磁场具有沿着每个薄膜的硬磁轴方向的方向。

公开(公告)号：US4291377A

公开(公告)日：1981-09-22

申请号：US90734

申请日：1979-11-02

申请人： Gernot Schneider ,  Benedikt Steinle

发明人： Gernot Schneider ,  Benedikt Steinle

IPC分类号： G01R22/00 ,  G01R21/133 ,  G01R11/32

CPC分类号： G01R21/133

摘要： An apparatus for measuring a.c. power which subtracts an average value of current and voltage from sampled instantaneous current and voltage values, respectively. The resultant current and voltage values are multiplied, so as to obtain a power measurement substantially free of any sampling errors and any d.c. levels.

摘要翻译： 一种用于测量交流电压的装置 功率分别从采样的瞬时电流和电压值中减去电流和电压的平均值。 将所得的电流和电压值相乘，以获得基本上没有任何采样误差和任何直流电的功率测量。 水平。

公开(公告)号：US4355252A

公开(公告)日：1982-10-19

申请号：US153693

申请日：1980-05-27

申请人： Hubert Lechner ,  Benedikt Steinle

发明人： Hubert Lechner ,  Benedikt Steinle

IPC分类号： H02K21/14 ,  H02K19/00

CPC分类号： H02K21/145 ,  H02K2201/12

摘要： In a self-starting unidirectional synchronous motor which includes a stator, an exciting coil at least partly disposed within the stator, a permanent magnet type rotor which has a plurality of rotor poles and is at least partly disposed within the coil, and wherein a space is defined between the rotor and the coil, and the stator includes groups of unshaded main poles and groups of shaded auxiliary poles alternating with each other, and respective end zones are defined between adjacent groups, and each pole generates a corresponding magnetic field, the poles comprise pole arms extending into the space and include half poles disposed at least near the end zones, respectively, and wherein the groups of shaded poles are displaced with respect to the groups of non-shaded poles by respective spatial electrical angles, and the magnetic fields of groups of shaded poles are shifted with respect to groups of non-shaded poles by respective phase angles.

摘要翻译： 在包括定子的自启动单向同步电动机中，至少部分地设置在所述定子内的励磁线圈，具有多个转子极并且至少部分地设置在所述线圈内的永磁体型转子，并且其中， 被定义在转子和线圈之间，并且定子包括彼此交替的非阴影主极和阴影辅助极组的组，并且相邻端部区域被限定在相邻组之间，并且每个极产生相应的磁场， 包括延伸到空间中的极臂，并且包括分别设置在至少靠近端部区域的半极，并且其中阴极极组相对于非阴影极组相应的空间电角度位移，并且磁场 阴影极组相对于非阴影极组相应的相位角移动。

公开(公告)号：US4356553A

公开(公告)日：1982-10-26

申请号：US201489

申请日：1980-06-25

申请人： Benedikt Steinle ,  Gernot Schneider ,  Hans Nuenlist

发明人： Benedikt Steinle ,  Gernot Schneider ,  Hans Nuenlist

IPC分类号： G01R21/00 ,  G01R21/127 ,  G01R21/133 ,  H03M1/00 ,  G01R21/06

CPC分类号： G01R21/133 ,  G01R21/127 ,  H03M1/181

摘要： In a method of measuring power delivered at an alternating voltage by an alternating current to a load, the steps include comparing the instantaneous alternating voltage and the instantaneous alternating current with a periodically varying reference signal having a relatively high frequency compared to the frequency of the alternating voltage and the alternating current, thereby obtaining a plurality of first voltage-intersection and current-intersection points during the negative-going portions of the reference signal, and a plurality of second voltage-intersection and current-intersection points during the positive-going portions of the reference signal,transforming the measured analog voltage-values and measured the analog current-values into digital voltage-values and digital current-values, respectively, multiplying the digital voltage-values and the digital current values at the first intersection points with one another, so as to obtain a plurality of first instantaneous power outputs, multiplying the digital voltage-values and the digital current-values at the second intersection points with one another, so as to obtain a plurality of second instantaneous power outputs, and continuously integrating the power outputs so as to obtain an average power output.

摘要翻译： PCT No.PCT / CH79 / 00119 Sec。 371日期1980年6月25日第 102（e）日期1980年6月25日PCT提交1979年9月5日PCT公布。 出版物WO80 / 01206 日期：1980年6月12日。在通过交流电流向负载测量在交流电压下传递的功率的方法中，步骤包括将瞬时交流电压和瞬时交流电流与具有相对高频率的周期性变化的参考信号进行比较 与交流电压和交流电流的频率相比较，从而在参考信号的负极部分获得多个第一电压相交点和电流相交点，以及多个第二电压交叉和电流交叉点 在参考信号的正向部分期间，将所测量的模拟电压值变换并分别将模拟电流值测量为数字电压值和数字电流值，将数字电压值和数字电流值相乘 在彼此的第一交叉点处，以获得多个第一i 实时功率输出，将第二交点处的数字电压值与数字电流值相乘，以获得多个第二瞬时功率输出，并且连续地对功率输出进行积分，以获得平均功率 输出。