公开(公告)号：US20240085310A1

公开(公告)日：2024-03-14

申请号：US18296282

申请日：2023-04-05

申请人： Antony Trueman

发明人： Antony Trueman

IPC分类号： G01N17/02 ,  G01N27/04 ,  G01R15/12

CPC分类号： G01N17/02 ,  G01N27/045 ,  G01R15/12

摘要： The present invention is an atmospheric resistance-based corrosion sensor that allows atmospheric corrosion rates to be measured, dynamically and frequently. The following are the components of the present invention. The resistance of a strip of 6 cm×0.5 cm and 50 μm thickness is approximately 40 mΩ at room temperature. This resistance is less than the any lead that would be required to measure it, and therefore a 4-point Kelvin measurement method was required. The present invention is broken down to four components: a sensor metallic strip [singular or multiple at ˜(50 μm-200 μm) manufactured from the metal of interest] conductively bonded to a circuit board with two conducting pads that link the circuits together, a first circuit that passes a known calibrated current, and a second circuit that passes no current.

公开(公告)号：US11698395B1

公开(公告)日：2023-07-11

申请号：US17535619

申请日：2021-11-25

申请人： John Alexander

发明人： John Alexander

IPC分类号： G01R15/12 ,  G01R19/165

CPC分类号： G01R19/16561 ,  G01R15/12 ,  G01R19/16542

摘要： A current testing device including a housing assembly, an electrical assembly and a circuit board assembly is disclosed herein. The housing assembly includes a housing that encloses the electrical assembly. The electrical assembly includes a battery, a microprocessor, a display, a keypad, a power button, an electrical port, and test cables. The microprocessor permits the user to simulate a fuse. The microprocessor has a memory in which a predetermined catalogue of fuses characteristics is stored. The user connects the test cables to a circuit board where the fuse is blown. The keypad allows the user to type the simulation characteristics while the display shows the results of the simulation.

公开(公告)号：US20160307467A1

公开(公告)日：2016-10-20

申请号：US15101261

申请日：2015-10-06

申请人： Johann Pierre Kok

发明人： Johann Pierre Kok

IPC分类号： G09B19/24 ,  G09B5/12

CPC分类号： G09B19/24 ,  G01R1/04 ,  G01R15/12 ,  G01R31/3177 ,  G09B5/125 ,  G09B7/02 ,  G09B23/183 ,  G09B23/187

摘要： The invention relates to a portable electronic test device which includes a casing which houses therein at least six discrete electronic instruments including an oscilloscope, a spectrum analyser, a logic analyser, a waveform generator, a digital pattern generator and a power supply. The invention extends to a method of assessing an operator's proficiency to use the electronic test device by: crotographically authenticating the operator prior to permitting the operator to use the electronic device using an electronic tag coupled to the electronic device; automatically evaluating, using a computing device, an assignment carried out by the operator using the electronic device; and electronically storing a result of the evaluation on the tag in order to keep track of the operator's proficiency in using the electronic device.

摘要翻译： 本发明涉及一种便携式电子测试装置，其包括壳体，其中容纳有至少六个分立的电子仪器，包括示波器，频谱分析仪，逻辑分析仪，波形发生器，数字图形发生器和电源。 本发明延伸到一种评估操作员熟练使用电子测试装置的方法：在允许操作者使用电子设备使用耦合到电子设备的电子标签之前，对所述操作者进行克图式认证; 使用计算设备自动评估操作者使用电子设备进行的分配; 并且电子地存储标签的评估结果，以便跟踪操作员使用电子设备的能力。

公开(公告)号：US20160231370A1

公开(公告)日：2016-08-11

申请号：US15016657

申请日：2016-02-05

申请人： Lisle Corporation

发明人： Christopher L. Fasnacht ,  Philip E. Sunderman

IPC分类号： G01R31/00 ,  G01R31/36 ,  H01B7/00 ,  G01R15/12

CPC分类号： H01B7/0045 ,  G01R15/12 ,  G01R31/007 ,  G01R31/025 ,  G01R31/3696 ,  H02J7/0029

摘要： A cable harness assembly useful in combination with a current measurement device includes first and second pairs of cables each pair having a lead connected to a separate pole of a bypass switch, each pair including one of said cables fused, said first pair of cables having leads connectable to a current measurement device and the second pair of cables connectable to direct current electric power course which is incorporated with circuitry involving various control and other modules potentially susceptible to parasitic current drain. The first and second pair of cables each includes one cable fused, the fuse rating of a second pair rated higher than said first pair rating, the first pair having leads configured connect to a current measurement device and the second pair having leads connectable respectively to the direct current power source and a circuit powered by the power source.

摘要翻译： 与电流测量装置组合使用的电缆线束组件包括第一和第二对电缆，每对电缆具有连接到旁路开关的单独极的引线，每对电缆包括一个所述电缆熔断，所述第一对电缆具有引线 可连接到电流测量装置，第二对电缆可连接到直流电力线路，该直流电力线路与包含各种可能易受寄生电流消耗影响的各种控制和其他模块的电路结合。 第一对和第二对电缆每个包括一个电缆熔断，第二对额定值高于所述第一对额定值的第一对电缆，所述第一对具有连接到电流测量装置的引线，并且所述第二对具有可分别连接到 直流电源和由电源供电的电路。

公开(公告)号：US20160116506A1

公开(公告)日：2016-04-28

申请号：US14524886

申请日：2014-10-27

申请人： FLUKE CORPORATION

发明人： Paul Andrew Ringsrud

IPC分类号： G01R15/20 ,  G01R19/00

CPC分类号： G01R15/202 ,  G01R15/12 ,  G01R15/181 ,  G01R15/205 ,  G01R15/207 ,  G01R19/0092

摘要： Apparatus and methods for measuring current flowing through a conductor include a device comprised of a magnetically conductive loop having a plurality of strands and a magnetic field sensor. Each strand has a magnetically conductive material. The strands are configured to pass a magnetic field to a first magnetic field sensor that is positioned adjacent to an end of the first plurality of strands. The plurality of strands may be arranged in various patterns that allow the magnetically conductive loop to be more bendable or flexible than a current-clamp device.

摘要翻译： 用于测量流过导体的电流的装置和方法包括由具有多个股线的磁导环和磁场传感器组成的装置。 每股线具有导磁材料。 股线被配置成将磁场传递到与第一多个股线的端部相邻定位的第一磁场传感器。 多个股线可以布置成各种图案，其允许导磁环比电流钳装置更可弯曲或柔性。

公开(公告)号：US20160011234A1

公开(公告)日：2016-01-14

申请号：US14860571

申请日：2015-09-21

申请人： Synopsys, Inc.

发明人： Edvard Mkrtchyan ,  Dino Anthony Toffolon ,  Adam Burns

IPC分类号： G01R15/12 ,  G01R17/00

CPC分类号： G01R15/12 ,  G01R17/00 ,  G01R19/10 ,  G06F1/266 ,  H04L25/061

摘要： Methods and systems are described for monitoring and compensating an offset between a reference voltage used in a first device and a corresponding reference voltage used in a second device. The first device can include offset circuitry. The offset circuitry receives two voltage signals. The first voltage signal is equal to a first voltage value that is used as a reference voltage in the first device. The second voltage signal can be a time-varying voltage signal that has a known relationship with a second voltage value that is used as a reference voltage in the second device. The offset circuitry can then determine the second voltage value from the second voltage signal, and output an offset value based on a difference between the first voltage value and the second voltage value.

公开(公告)号：US20140371943A1

公开(公告)日：2014-12-18

申请号：US14472259

申请日：2014-08-28

申请人： Fluke Corporation

发明人： Paul H. Heydron ,  Christoper Rayburn ,  Jeffrey C. Hudson

IPC分类号： G05F1/66 ,  G05B15/02

CPC分类号： G05F1/66 ,  G01R15/12 ,  G01R22/065 ,  G05B15/02 ,  G08C17/02 ,  G08C17/04 ,  G08C23/04 ,  H04Q9/00 ,  H04Q2209/40 ,  H04Q2209/88 ,  H04Q2209/883

摘要： A system and method of coordinating power states between two detachable units is disclosed. Only the primary unit has a user-controllable power control. The secondary unit is not directly user controllable. The power states of the two units are coordinated using an actuator mechanism when the units are attached. When the two units are detached, the state of the secondary unit is dependent upon the state of the primary unit and any subsequent commands transmitted by the primary unit to the secondary unit.

摘要翻译： 公开了一种在两个可拆卸单元之间协调电源状态的系统和方法。 只有主单元具有用户可控的功率控制。 辅助单元不是直接用户可控的。 当安装单元时，使用致动器机构来协调两个单元的动力状态。 当两个单元分离时，二次单元的状态取决于主单元的状态和由主单元发送到次单元的任何后续命令。

公开(公告)号：US20120313655A1

公开(公告)日：2012-12-13

申请号：US13157450

申请日：2011-06-10

申请人： Roger BALD ,  Yaho Hsieh

发明人： Roger BALD ,  Yaho Hsieh

IPC分类号： G01R31/00

CPC分类号： G01R31/025 ,  G01R15/12 ,  G01R31/00

摘要： An electrical test instrument includes a built-in, switchable intermediate-voltage power source that enables line-leakage and run testing to be carried-out under higher-than-normal DUT operating voltages.

摘要翻译： 电气测试仪器包括内置的可切换中压电源，可在高于正常的DUT工作电压下进行线路漏电和运行测试。

公开(公告)号：US08330449B2

公开(公告)日：2012-12-11

申请号：US12506118

申请日：2009-07-20

申请人： Robert M. Greenberg

发明人： Robert M. Greenberg

IPC分类号： G01R15/18 ,  G01R1/38

CPC分类号： G01R15/181 ,  G01R15/12 ,  G01R15/186

摘要： A clamp-on multimeter measures alternating current flow in an electrical conductor. The multimeter includes a display, a housing including the display, a first sensor, a second sensor, a processor and an integrator. The first sensor has a magnetizable material core and inductively senses the alternating current. The first sensor includes a first clamp portion fixed to the housing and a second clamp portion pivotally coupled to the first clamp portion. The second sensor includes a Rogowski coil that has a non-magnetic core and inductively senses the alternating current. The processor receives an input signal in a first voltage range and sends an output signal to the digital display. The integrator scales a signal from the second sensor in a second voltage range to the first voltage range. The housing includes the processor, the integrator, and a selector configured to select the input signal to the processor from one of the first sensor and the integrator.

摘要翻译： 钳位万用表测量电导体中的交流电流。 万用表包括显示器，包括显示器的壳体，第一传感器，第二传感器，处理器和积分器。 第一个传感器具有可磁化材料芯，并感应地感测交流电流。 第一传感器包括固定到壳体的第一夹紧部分和枢转地联接到第一夹持部分的第二夹紧部分。 第二传感器包括具有非磁芯并且感应地感测交流电的罗氏线圈。 处理器在第一电压范围内接收输入信号并向数字显示器发送输出信号。 积分器将来自第二传感器的信号在第二电压范围缩放到第一电压范围。 壳体包括处理器，积分器和配置成从第一传感器和积分器中的一个选择到处理器的输入信号的选择器。

公开(公告)号：US07948227B2

公开(公告)日：2011-05-24

申请号：US12206014

申请日：2008-09-08

申请人： Robert U. Beckmann

发明人： Robert U. Beckmann

IPC分类号： G01R15/10

CPC分类号： G01R31/006 ,  G01R1/06788 ,  G01R15/12

摘要： Diagnosing electrical circuit faults can be accomplished with a variety of tools. Voltmeters are frequently used to measure voltage to determine whether a short is present, but are not well-suited for finding intermittent faults caused by corroded connectors or excessive voltage drop under operating loads. Measuring a static voltage without load using a voltmeter can yield misleading results. A diagnostic tool that is simple to use and that yields a definitive result is preferred in certain applications such as automotive electrical system diagnosis due to the varying skill level of technicians and the variation in field conditions in automotive shops. A simple, inexpensive diagnostic tool that can be used with minimal or no training allows rapid diagnosis of circuit faults that result from a the inability of a measured circuit to supply a minimum current at a minimum voltage.

摘要翻译： 诊断电路故障可以用各种工具完成。 电压表经常用于测量电压，以确定是否存在短路，但不适合发现由于连接器受到连接器断电而造成的断续故障或工作负载下的过大电压降。 使用电压表测量无负载的静态电压可能会产生误导性的结果。 由于技术人员的技术水平不同以及汽车商店现场条件的变化，在某些应用中，诸如汽车电气系统诊断中，易于使用并产生确定结果的诊断工具是首选的。 一个简单，便宜的诊断工具，可以使用最少或没有训练，可以快速诊断电路故障，这是由于测量电路不能在最小电压下提供最小电流。