公开(公告)号：US09851399B2

公开(公告)日：2017-12-26

申请号：US14766201

申请日：2014-02-05

申请人： GIESECKE & DEVRIENT GMBH

发明人： Klaus Finkenzeller ,  Michael Baldischweiler

IPC分类号： G01R31/315 ,  H04B5/00 ,  H04B17/16

CPC分类号： G01R31/315 ,  H04B5/0075 ,  H04B17/16

摘要： A method for checking a circuit devised for contactless data communication, which comprises an antenna and an electronic component coupled with the antenna, comprises the following steps: generating an alternating magnetic field of a field strength, and arranging the circuit in the alternating field region. Then the electronic circuit is excited by means of an energy pulse. In a further step, an oscillation of the circuit in response to the excitation of the circuit by the energy pulse is captured. The captured oscillation of the circuit is finally evaluated, in particular with regard to a self-resonant frequency of the circuit.

公开(公告)号：US09709593B1

公开(公告)日：2017-07-18

申请号：US13608996

申请日：2012-09-10

申请人： Alex J. Sitzman ,  Garet L. Itz ,  Joaquín M. Campos ,  Weston D. Petersen

发明人： Alex J. Sitzman ,  Garet L. Itz ,  Joaquín M. Campos ,  Weston D. Petersen

IPC分类号： G01P3/66 ,  G01P3/64 ,  G01R31/315

CPC分类号： G01P3/665 ,  G01P3/64 ,  G01P3/66 ,  G01R31/315

摘要： A muzzle-mounted chronograph for measuring velocities of projectiles launched from firearms. The chronograph includes a sensor module and a controller. The sensor module includes a first and second coils and a device for applying a stable magnetic field to the first and second coils. The controller determines a velocity of a projectile passing by the first and second coils based on detected variations in magnetic fields at the first and second coils.

公开(公告)号：US09606198B2

公开(公告)日：2017-03-28

申请号：US14273558

申请日：2014-05-09

申请人： NATIONAL TAIWAN UNIVERSITY

发明人： Yien-Tien Chou ,  Hsin-Chia Lu

IPC分类号： G01R33/02 ,  G01V3/08 ,  G01V3/10 ,  G01R31/20 ,  G01R33/10 ,  G01R33/00 ,  G01R31/315

CPC分类号： G01R33/10 ,  G01R31/315 ,  G01R33/0047 ,  G01R33/0052

摘要： A magnetic field probe, a magnetic field measurement system, and a magnetic field measurement method are provided. The magnetic field probe includes a probe head. The probe head includes a first and second inner metal layer. The first inner metal layer includes a first sensing part and a first connecting part coupled thereto. The first sensing part is configured for detecting a magnetic field signal of a device under test to form a first magnetic field distribution signal. The second inner metal layer includes a second sensing part and a second connecting part coupled thereto. The second sensing part is configured for detecting the magnetic field signal of the device under test to form a second magnetic field distribution signal. A distance between the first sensing part and the device under test is smaller than that between the second sensing part and the device under test.

公开(公告)号：US20150179325A1

公开(公告)日：2015-06-25

申请号：US14135956

申请日：2013-12-20

申请人： CARLOS M. ACUNA ,  MOHAMMAD A. FARUQUE ,  KEVIN R. FUGATE ,  TODD D. HOFFMANN ,  PAIGE M. HOLM ,  PETER T. JONES ,  RIGOBERTO LOPEZ, JR. ,  WILLIAM D. MCWHORTER

发明人： CARLOS M. ACUNA ,  MOHAMMAD A. FARUQUE ,  KEVIN R. FUGATE ,  TODD D. HOFFMANN ,  PAIGE M. HOLM ,  PETER T. JONES ,  RIGOBERTO LOPEZ, JR. ,  WILLIAM D. MCWHORTER

IPC分类号： H01F7/02 ,  G01R1/04 ,  G01R31/315

CPC分类号： H01F7/0294 ,  G01R1/0408 ,  G01R31/315

摘要： Methods, systems and apparatus are provided to apply a magnetic pre-conditioning to magnetic tunneling junction (MTJ) sensors and other micro-magnetic devices after fabrication but before testing, trimming or other subsequent processing. The fabricated sensor device is passed through a magnetic field that has a known direction and orientation relative to the device so that the device is placed into a known state prior to final testing and trimming. Various embodiments allow the field to be applied in situ by a permanent magnet or electromagnet as the devices are being processed by a conventional device handler or similar processing system.

摘要翻译： 提供了方法，系统和装置，用于在制造之后但在测试，修整或其它后续处理之前对磁性隧道结（MTJ）传感器和其它微型磁性装置施加磁性预处理。 制造的传感器装置通过具有相对于装置的已知方向和取向的磁场，使得装置在最终测试和修整之前被置于已知状态。 各种实施例允许现场通过永磁体或电磁体在现场施加，因为装置正在由传统的装置处理器或类似的处理系统进行处理。

公开(公告)号：US08963570B2

公开(公告)日：2015-02-24

申请号：US13057900

申请日：2009-07-15

申请人： Thomas Zelder ,  Bernd Geck

发明人： Thomas Zelder ,  Bernd Geck

IPC分类号： G01R1/067 ,  G01R1/07 ,  G01R31/315

CPC分类号： G01R1/07 ,  G01R1/06772 ,  G01R31/315

摘要： The invention relates to a contactless loop probe for the contactless decoupling of an HF signal for a contactless measuring system, comprising at least one coupling structure (10) and at least one first signal conductor (12) electrically connected to the coupling structure (10) by a first transition (20), said signal conductor being electrically connected by a second transition (22) to an output (14) for electrically connecting to the measuring system, wherein the coupling structure (10) is designed as an HF waveguide comprising at least one signal conductor (24; 30) and at least one reference conductor (26; 32).

摘要翻译： 本发明涉及一种用于非接触式测量系统的HF信号的非接触去耦的非接触式环路探针，包括至少一个耦合结构（10）和至少一个电连接到耦合结构（10）的第一信号导体（12） 通过第一过渡（20），所述信号导体通过第二过渡（22）电连接到用于电连接到测量系统的输出（14），其中耦合结构（10）被设计为HF波导，其包括 至少一个信号导体（24; 30）和至少一个参考导体（26; 32）。

公开(公告)号：US20090309572A1

公开(公告)日：2009-12-17

申请号：US12137505

申请日：2008-06-11

申请人： David Gareth Perry

发明人： David Gareth Perry

IPC分类号： G01R31/315

CPC分类号： G01R15/183 ,  G01R21/06

摘要： An apparatus and method for current transformer adaptation for extending a distance between a current sensing location, having a load current carrying load conductor, and a current measuring location having a measuring instrument. A first current transformer adapted to being connected to the load conductor is used to sense the load current. Typically the distanced between the first current transformer and the current measuring instrument is limited by a load burden rating of the first current transformer and a pre-determined resistive load per unit length of an instrument conductor connecting the first current transformer and the current measuring instrument. The present invention provides for the distance to be extended by connecting a second current transformer, having greater load burden rating than the first current transformer, to a secondary winding of the first current transformer and connecting the instrument conductor between the second current transformer and the current measuring instrument.

摘要翻译： 一种用于电流互感器适配的装置和方法，用于延伸具有负载电流负载导体的电流感测位置和具有测量仪器的电流测量位置之间的距离。 适于连接到负载导体的第一电流互感器用于感测负载电流。 通常，第一电流互感器和电流测量仪器之间的距离受到第一电流互感器的负载额定值和连接第一电流互感器和电流测量仪器的仪器导体的每单位长度的预定电阻负载的限制。 本发明通过将具有比第一电流互感器的负载额定值更大的第二电流互感器连接到第一电流互感器的次级绕组并将仪器导体连接到第二电流互感器和电流之间来提供延伸的距离 测量仪器。

公开(公告)号：US07630840B2

公开(公告)日：2009-12-08

申请号：US11945565

申请日：2007-11-27

申请人： Jeffrey A. Sell ,  Bradley Gibson

发明人： Jeffrey A. Sell ,  Bradley Gibson

IPC分类号： G01R31/312 ,  G01R31/315 ,  G01R31/08

CPC分类号： F02D41/1454 ,  F02D41/064 ,  F02D41/1476 ,  F02D41/1494 ,  F02D41/1495 ,  G01N27/4175

摘要： An oxygen sensor readiness module comprises a voltage source, a current detection module, and a control module. The voltage source selectively produces a bias signal, which is applied to a sensing element of an oxygen sensor. The current detection module measures a pumping current of the oxygen sensor. The control module generates a readiness signal based upon a comparison of the pumping current with a pumping current threshold.

摘要翻译： 氧传感器准备模块包括电压源，电流检测模块和控制模块。 电压源选择性地产生施加到氧传感器的感测元件的偏置信号。 电流检测模块测量氧传感器的泵送电流。 控制模块基于泵浦电流与泵送电流阈值的比较来产生准备信号。

公开(公告)号：US07511485B2

公开(公告)日：2009-03-31

申请号：US11342693

申请日：2006-01-31

申请人： Hiroki Funato

发明人： Hiroki Funato

IPC分类号： G01R33/02 ,  G01R33/025 ,  G01R31/315

CPC分类号： G01R33/10

摘要： To measure a magnetic field strength at each scan spacing s which is smaller than a loop size by scanning a magnetic field sensor (loop antenna) of the loop size. A magnetic field strength distribution is determined with spatial resolution of the spacing s along a scan direction, by performing arithmetic processing including addition and subtraction in relation to each of the measured magnetic field strength values. It is to be noted that the magnetic field sensor may be a magnetic field sensor array with plural magnetic field sensors placed at the spacing s.

摘要翻译： 通过扫描环路尺寸的磁场传感器（环形天线）来测量每个扫描间距s处的磁场强度小于环路尺寸。 通过执行包括与每个测量的磁场强度值相关的加法和减法的算术处理，确定沿着扫描方向的间隔s的空间分辨率的磁场强度分布。 应当注意，磁场传感器可以是具有以间隔s放置的多个磁场传感器的磁场传感器阵列。

公开(公告)号：US20080258744A1

公开(公告)日：2008-10-23

申请号：US11664262

申请日：2005-09-21

申请人： Tadahiro Kuroda ,  Daisuke Mizoguchi ,  Noriyuki Mirua

发明人： Tadahiro Kuroda ,  Daisuke Mizoguchi ,  Noriyuki Mirua

IPC分类号： G01R31/315

CPC分类号： G01R31/315 ,  G01R31/3025

摘要： The present invention has an object to provide an electronic circuit testing apparatus that is preferable for testing an electronic circuit which carries out communications between substrates based on inductive coupling and is capable of testing the electronic circuit without using test pads, wherein a probe 15 is caused to intervene in a communications channel composed by inductive coupling based on the first and second transmitter coils 21a, 21b; and the first and second receiver coils 23a, 23b, and an LSI is tested by a tester 11, buffers 12 and 13, and a Tx/Rx switch 14. Accordingly, it is not be necessary for that the electronic circuit testing apparatus is provided with a needle that touches pads and leads of the electronic circuit, and the service life there can be lengthened.

摘要翻译： 本发明的目的是提供一种电子电路测试装置，其优选用于测试基于电感耦合在基板之间进行通信的电子电路，并且能够在不使用测试焊盘的情况下测试电子电路，其中引起探针15 介入基于第一和第二发射机线圈21a，21b的感应耦合组成的通信信道; 并且由测试器11，缓冲器12和13以及Tx / Rx开关14测试第一和第二接收器线圈23a，23b和LSI。 因此，电子电路测试装置不需要设有接触电子电路的焊盘和引线的针，并且可以延长其使用寿命。

公开(公告)号：US5424633A

公开(公告)日：1995-06-13

申请号：US953845

申请日：1992-09-30

申请人： Jacob Soiferman

发明人： Jacob Soiferman

IPC分类号： G01R31/309 ,  G01R31/315 ,  G01R31/02 ,  H01H31/04

CPC分类号： G01R31/2812 ,  G01R31/309 ,  G01R31/315

摘要： This application describes a method of testing for manufacturing faults and quality of unpopulated or inactive populated electronic printed circuit boards (PCB). This method can be used to develop a new contactless test system (CTS). An electromagnetic field is generated by an energizing plate connected to an AC signal. When a board under test (BUT) is placed within the electromagnetic field, perturbation of the original field by conducting elements on the BUT is solely a function of the geometrical layout of the conducting elements on the BUT. Therefore, measurement of the perturbed electromagnetic field produces a characteristic pattern for the BUT. Such a pattern can then be compared to a known pattern for the same type of board to determine whether the BUT is faulty (shorts or opens) or not faulty. The most distinctive feature of this method is that testing PCBs by this method requires no electrical contact with the BUT due to the use of the energizing plate.

摘要翻译： 本申请描述了一种测试制造故障和未填充或不活动的人口密集的电子印刷电路板（PCB）的质量的方法。 该方法可用于开发新的非接触式测试系统（CTS）。 由与AC信号连接的激励板产生电磁场。 当被测试板（BUT）置于电磁场内时，通过在BUT上传导元件对原始场的扰动仅仅是BUT上的导电元件的几何布局的函数。 因此，扰动电磁场的测量产生了BUT的特征模式。 然后可以将这样的模式与用于相同类型的板的已知模式进行比较，以确定BUT是否有故障（短路或断开）或不发生故障。 该方法最显着的特征是通过这种方法测试PCB不需要使用通电板与BUT电接触。