公开(公告)号：US20180266974A1

公开(公告)日：2018-09-20

申请号：US15464204

申请日：2017-03-20

申请人： THE BOEING COMPANY

发明人： Shahriar Khosravani

IPC分类号： G01N27/04 ,  G01N27/14

CPC分类号： G01N27/041 ,  G01R27/08 ,  G01R27/14 ,  G01R31/1227 ,  H02G13/60

摘要： A non-destructive testing system includes a test article interface and a reference article interface. The test article interface includes a connector to couple to a metal component of an article under test (AUT) and a connector to couple to a carbon fiber composite component of the AUT. The reference article interface includes a connector to couple to a metal component of a reference article (REF) and a connector to couple to a carbon fiber composite component of the REF. The system also includes sensors to generate signals based on voltage and current thermoelectrically induced between the test article interface and the reference article interface, where the current and the voltage are based on a temperature difference between the AUT and the REF. The system also includes a processor to generate, based on the signals, an output indicating whether the AUT is expected to pass a lightning strike test.

公开(公告)号：US20180173174A1

公开(公告)日：2018-06-21

申请号：US15380582

申请日：2016-12-15

申请人： Woodward, Inc.

发明人： Brian Swope

IPC分类号： G05B15/02 ,  G01R27/02

CPC分类号： G05B15/02 ,  F02C7/22 ,  F02C9/26 ,  G01R27/02 ,  G01R27/14 ,  G05B2219/2623 ,  H01C10/06 ,  H04Q9/00

摘要： The subject matter of this specification can be embodied in, among other things, an identification system includes a first component having a first resistor and a second resistor, a second component having a sensor configured to sense a voltage difference between a first bus and a second bus and a selector signal output port configured to provide a first selector signal and a second selector signal, and a third component having a switching network configured to electrically connect the second bus to the first bus across one or both of the first resistor and the second resistor in response to the first selector signal, and electrically connect the second bus to the first bus across a different one of the first resistor or the second resistor in response to the second selector signal.

公开(公告)号：US09910450B2

公开(公告)日：2018-03-06

申请号：US14779162

申请日：2013-04-12

申请人： HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P.

发明人： Thomas Sawyers ,  Jon G Lloyd

IPC分类号： G01N27/00 ,  G05F1/46 ,  G06F1/26 ,  G01R19/10 ,  G01R19/25 ,  G06F1/16 ,  G01R27/14

CPC分类号： G05F1/46 ,  G01R19/10 ,  G01R19/2506 ,  G01R27/14 ,  G06F1/1632 ,  G06F1/26 ,  H03M1/0619

摘要： An example provides an apparatus for determining an attribute of an adapter based on a ratio of voltage divider outputs. The apparatus may include a first analog-to-digital converter to provide a first digital signal corresponding to a first output voltage of a first voltage divider connected between a power node and a ground node, the first voltage divider formed, at least in part, when the apparatus is operatively coupled to the adapter. The apparatus may include a second analog-to-digital converter to provide a second digital signal corresponding to a second output voltage of a second voltage divider connected between the power node and the ground node. The attribute of the adapter may be determined based on a ratio of the output voltages.

公开(公告)号：US09851411B2

公开(公告)日：2017-12-26

申请号：US13795840

申请日：2013-03-12

申请人： Keith S. Champlin

发明人： Keith S. Champlin

IPC分类号： G01R31/36 ,  G01R1/06 ,  G01R27/14

CPC分类号： G01R31/3624 ,  G01R1/06 ,  G01R27/14 ,  G01R31/3627 ,  G01R31/3662

摘要： Kelvin (4-wire) connecting cables are routinely used when performing dynamic measurements (i.e., measurements with time-varying signals) on electrochemical cells and batteries. Current-carrying and voltage-sensing conductor pairs within such cables comprise distributed-parameter two-wire transmission lines which may extend several meters in length. As with all such transmission lines, internally reflected waves can oscillate back and forth at high frequency (hf) whenever the lines are not terminated in their characteristic impedances. Such hf reflected waves, by interacting with measuring circuitry, can seriously degrade low-frequency measurement accuracy. Apparatus is disclosed herein that suppresses hf reflected waves oscillating on Kelvin connecting cables during dynamic measurements of cells and batteries.

公开(公告)号：US09797937B2

公开(公告)日：2017-10-24

申请号：US14058547

申请日：2013-10-21

申请人： Yi-Lung Mo ,  Rachel Howser ,  Hermant Dhonde ,  Gangbing Song

发明人： Yi-Lung Mo ,  Rachel Howser ,  Hermant Dhonde ,  Gangbing Song

IPC分类号： G01R27/02 ,  D04B21/10 ,  H01B1/24 ,  G01R27/14 ,  B28B17/00 ,  G01M5/00 ,  G01N27/04 ,  G01N33/38

CPC分类号： G01R27/14 ,  B28B17/0072 ,  G01M5/0041 ,  G01M5/0083 ,  G01N27/041 ,  G01N33/383 ,  Y10T442/10

摘要： A carbon nanofiber aggregate (CNFA) system and method provides self-sensing capabilities that can be used to detect strain, moisture, and temperature changes. The CNFA may include cement, aggregate, silica fume, high-range water reducer (HRWR), and/or carbon nanofibers. The metal meshes in the CNFA may be utilized to monitor the electric properties of the CNFA to detect strain, moisture, and temperature changes. The CNFA may be embedded in concrete structures to allow detection of strain, moisture, and temperature changes that may cause damage to structures. Several metal meshes may be embedded in the CNFA.

公开(公告)号：US20170269140A1

公开(公告)日：2017-09-21

申请号：US15301313

申请日：2015-10-07

申请人： HALLIBURTON ENERGY SERVICES, INC.

发明人： Lucian Popescu ,  Burjis H. Cooper

IPC分类号： G01R31/02 ,  E21B41/00 ,  E21B47/00 ,  G01R27/26 ,  G01R27/14

CPC分类号： G01R31/028 ,  E21B41/0085 ,  E21B47/00 ,  E21B47/01 ,  E21B47/06 ,  G01R27/14 ,  G01R27/2605

摘要： A system for use in a wellbore can include a supercapacitor health measurement device including circuitry for determining a capacitance of a supercapacitor that is positionable in the wellbore. The supercapacitor health measurement device can also include circuitry for determining an equivalent series resistance (ESR) value of the supercapacitor. The supercapacitor health measurement device can further include circuitry for transmitting the capacitance and the ESR value. The system can also include a remote device that is positionable aboveground for receiving the capacitance and ESR value.

公开(公告)号：US09683900B2

公开(公告)日：2017-06-20

申请号：US14594287

申请日：2015-01-12

申请人： Azbil Corporation

发明人： Masaki Mitsui

IPC分类号： G01K7/00 ,  G01K7/16 ,  G01K15/00 ,  G01K7/20 ,  G01R27/14 ,  G01K1/02

CPC分类号： G01K7/16 ,  G01K1/026 ,  G01K7/20 ,  G01K7/206 ,  G01K15/007 ,  G01R27/14

摘要： A temperature measuring instrument is provided with a testing switch that controls a supply of a first constant current to a first signal line from a first constant current source and a supply of a second constant current to a second signal line from a second constant current source. When a temperature is being measured, the first and second constant currents are supplied respectively to the first and second signal lines. When testing connection statuses of the first signal line, the second signal line and a third signal line, the supply of the first and second constant currents are stopped temporarily, to change a report from a current detecting/reporting portion, provided in a temperature sensor, for detecting and reporting whether or not there is a return current to the temperature measuring instrument from the third signal line.

公开(公告)号：US09625530B2

公开(公告)日：2017-04-18

申请号：US14226749

申请日：2014-03-26

申请人： Ford Global Technologies, LLC

发明人： Alvaro Masias

IPC分类号： G01R31/02 ,  G01R31/36 ,  G01R27/14 ,  G01R31/00

CPC分类号： G01R31/3627 ,  G01R27/14 ,  G01R31/007 ,  G01R31/021

摘要： Example embodiments provide systems and methods for a vehicle component structural integrity assessment system, comprising a first connection and a second connection coupled to a conduction path, which is associated with a vehicle component. The conduction path has an initial resistance. A controller is configured to transmit a signal upon the detection of a change in the resistance of the conduction path from the initial resistance.

公开(公告)号：US09581637B2

公开(公告)日：2017-02-28

申请号：US14116476

申请日：2012-05-07

申请人： Marc Muller

发明人： Marc Muller

IPC分类号： G01R31/06 ,  G01R27/14 ,  G01R31/02

CPC分类号： G01R31/06 ,  G01R27/14 ,  G01R31/027

摘要： An apparatus for measuring winding resistances of windings in a delta-connected transformer includes at least a first and a second DC current source connected each between the phase ends of a first and a second leg respectively of the primary side of the transformer and at least a third DC current source connected between two nodes of the secondary side of the transformer. Furthermore, a method for measuring a winding resistance of windings in delta-connected transformers includes the steps of applying a first and a second measuring current to each one of two corresponding legs, applying a third measuring current between two nodes of a pair of windings on the secondary side and measuring at least a winding resistance of the winding between said nodes on the secondary side of the transformer and/or the winding resistance of a leg of the primary side as soon as an inductive voltage drop in the windings substantially equals zero.

摘要翻译： 用于测量三角形连接的变压器中的绕组的绕组电阻的装置包括至少一个第一和第二直流电流源，它们分别连接在变压器的初级侧的第一和第二支路的相位端之间，并且至少一个 连接在变压器次级侧的两个节点之间的第三个直流电流源。 此外，用于测量三角形连接变压器中的绕组的绕组电阻的方法包括以下步骤：将第一和第二测量电流施加到两个对应的支路中的每一个上，在一对绕组的两个节点之间施加第三测量电流 次级侧，并且在绕组的感应电压降基本上等于零时，至少测量变压器次级侧上的节点之间的绕组和/或初级侧的绕组的绕组电阻的至少一个绕组电阻。

公开(公告)号：US20160320514A1

公开(公告)日：2016-11-03

申请号：US15208376

申请日：2016-07-12

申请人： MAGNA CLOSURES INC.

发明人： Liviu Bolbocianu ,  Rade Isailovic ,  Mirko Pribisic ,  Thomas Mellary ,  Alex Porat

IPC分类号： G01V3/02 ,  E05F15/44 ,  B60J5/10

CPC分类号： G01V3/02 ,  B60J5/0493 ,  B60J5/107 ,  E05F15/44 ,  E05F15/443 ,  E05F15/46 ,  F16M13/02 ,  F16M13/022 ,  G01D5/16 ,  G01D11/30 ,  G01L1/205 ,  G01L1/225 ,  G01R27/02 ,  G01R27/14

摘要： In an aspect, a pinch sensor is provided, comprising: an elongate non-conductive casing enclosing first, second, and third elongate conductive electrodes; the first and second electrodes being separated by a portion of the casing, a capacitance between the first and second electrodes changing when an obstacle approaches the first electrode to provide a proximity indication of the obstacle to the pinch sensor; and, the second and third electrodes being separated by an air gap formed in the casing, a resistance between the second and third electrodes changing when the second and third electrodes come into contact upon compression of the casing by the obstacle to provide a contact indication of the obstacle with the pinch sensor.

摘要翻译： 在一个方面，提供一种夹送传感器，包括：细长的非导电套管，其包围第一，第二和第三细长导电电极; 所述第一和第二电极被所述壳体的一部分分开，所述第一和第二电极之间的电容在障碍物接近所述第一电极时改变，以向所述夹送传感器提供所述障碍物的接近指示; 并且所述第二和第三电极被形成在所述壳体中的气隙分开，所述第二和第三电极之间的电阻在所述第二和第三电极在由所述障碍物压缩所述壳体时接触时改变以提供接触指示 带有传感器的障碍物。