公开(公告)号：US10557869B2

公开(公告)日：2020-02-11

申请号：US16173986

申请日：2018-10-29

申请人： Fluke Corporation

发明人： Fang Li ,  Jinbo He ,  Chris Lagerberg

IPC分类号： G01R1/04 ,  G01R1/20 ,  G01R1/22 ,  G01R1/38 ,  G01R19/00 ,  G01R15/18 ,  G01R21/00 ,  G01R31/02 ,  G01R31/36

摘要： A clamp meter includes a meter body and a clamp jaw assembly mounted to the meter body. The clamp jaw assembly includes a first clamp jaw and a second clamp jaw that are movable in relation to each other between a closed position and an open position. In the closed position, distal ends of the first and second clamp jaws meet to define an enclosed area between the first and second clamp jaws, and in the open position, the distal ends of the first and second clamp jaws separate from each other to define a gap allowing a wire under test to pass therethrough. The clamp meter further includes a locking slider positioned within a slot inside the meter body. A switch assembly moves the locking slider longitudinally within the slot between locked and unlocked positions. In the locked position, the locking slider blocks the first clamp jaw from movement.

公开(公告)号：US10114043B2

公开(公告)日：2018-10-30

申请号：US15291973

申请日：2016-10-12

申请人： Fluke Corporation

发明人： Fang Li ,  Jinbo He ,  Chris Lagerberg

IPC分类号： G01R1/04 ,  G01R1/20 ,  G01R1/22 ,  G01R1/38 ,  G01R19/14 ,  G01R15/18 ,  G01R15/20 ,  G01R21/00 ,  G01R31/02 ,  G01R31/36

摘要： A clamp meter includes a meter body and a clamp jaw assembly mounted to the meter body. The clamp jaw assembly includes a first clamp jaw and a second clamp jaw which are movable in relation to each other between a closed position and an open position. In the closed position, distal ends of the first and second clamp jaws meet to define an enclosed area between the first and second clamp jaws, and in the open position, the distal ends of the first and second clamp jaws are separate from each other to define a gap allowing a wire under test to pass therethrough. The clamp meter further includes a locking member mounted within the meter body. The locking member is operable to releasably lock the first and second clamp jaws in the closed position.

公开(公告)号：US08981759B2

公开(公告)日：2015-03-17

申请号：US13929072

申请日：2013-06-27

申请人： HIOKI E.E. Corporation

发明人： Toshio Heishi ,  Yoshiyuki Miyazawa

IPC分类号： G01R15/08 ,  G01R1/00 ,  G01R1/38 ,  G01R1/04 ,  G01R15/00 ,  G01R15/12

CPC分类号： G01R1/38 ,  G01R1/04 ,  G01R15/002 ,  G01R15/12

摘要： A multimeter includes: a rotary switch which selects a measurement function; a common terminal hole into which a connector of a test probe is inserted; selection terminal holes into which the connector of the test probe is selectively inserted; and shutter plates which selectively open the selection terminal holes. The rotary switch includes convex portions. The shutter plate includes a hole corresponding to the common terminal hole so that the shutter plate rotates by using the center of the common terminal hole as the rotation axis and includes a concave portion engageable with the convex portion so that the shutter plate rotates to open the selection terminal holes by the movement of the convex portion. The shutter plate includes a concave portion engageable with the convex portion so that the shutter plate opens and closes the selection terminal hole by the movement of the convex portion.

摘要翻译： 万用表包括：选择测量功能的旋转开关; 插入测试探针的连接器的公共端子孔; 选择端子孔，选择性地插入测试探头的连接器; 以及选择性地打开选择端子孔的快门板。 旋转开关包括凸部。 闸板包括与公共端子孔相对应的孔，使得挡板通过使用公共端子孔的中心作为旋转轴线旋转，并且包括可与凸部接合的凹部，使得挡板旋转以打开 通过凸部的移动来选择端子孔。 挡板包括可与凸部接合的凹部，使得挡板通过凸部的移动来打开和关闭选择端子孔。

公开(公告)号：US20140002059A1

公开(公告)日：2014-01-02

申请号：US13929072

申请日：2013-06-27

申请人： HIOKI E.E. CORPORATION

发明人： Toshio HEISHI ,  Yoshiyuki MIYAZAWA

IPC分类号： G01R1/38

CPC分类号： G01R1/38 ,  G01R1/04 ,  G01R15/002 ,  G01R15/12

摘要： A multimeter includes: a rotary switch which selects a measurement function; a common terminal hole into which a connector of a test probe is inserted; selection terminal holes into which the connector of the test probe is selectively inserted; and shutter plates which selectively open the selection terminal holes. The rotary switch includes convex portions. The shutter plate includes a hole corresponding to the common terminal hole so that the shutter plate rotates by using the center of the common terminal hole as the rotation axis and includes a concave portion engageable with the convex portion so that the shutter plate rotates to open the selection terminal holes by the movement of the convex portion. The shutter plate includes a concave portion engageable with the convex portion so that the shutter plate opens and closes the selection terminal hole by the movement of the convex portion.

摘要翻译： 万用表包括：选择测量功能的旋转开关; 插入测试探针的连接器的公共端子孔; 选择端子孔，选择性地插入测试探头的连接器; 以及选择性地打开选择端子孔的快门板。 旋转开关包括凸部。 闸板包括与公共端子孔相对应的孔，使得挡板通过使用公共端子孔的中心作为旋转轴线旋转，并且包括可与凸部接合的凹部，使得挡板旋转以打开 通过凸部的移动来选择端子孔。 挡板包括可与凸部接合的凹部，使得挡板通过凸部的移动来打开和关闭选择端子孔。

公开(公告)号：US08504604B2

公开(公告)日：2013-08-06

申请号：US12616884

申请日：2009-11-12

申请人： Po-Chao Tan

发明人： Po-Chao Tan

IPC分类号： G06F7/52 ,  G01R1/38

CPC分类号： G01R15/125

摘要： A multimeter with filtered measurement mode is disclosed. The multimeter includes a signal conditioning circuit, a low-pass filter, a microprocessor, a measurement circuit, a root-mean-square (RMS) converter, a display unit, and an external rotary switch. The signal conditioning circuit receives a control signal to select an operation mode of the multimeter. The low-pass filter is electrically connected to the signal conditioning circuit. The microprocessor is electrically connected to the signal conditioning circuit. The measurement circuit is electrically connected to the microprocessor and the RMS converter to measure a signal outputted from the RMS converter. The display unit is electrically connected to the microprocessor and the measurement circuit. Also, the external rotary switch is optionally connected to the microprocessor. Whereby rotating the external rotary switch to generate the control signal and perform a low-pass filtering mode to communicate the low-pass filter with the RMS converter.

摘要翻译： 公开了一种具有滤波测量模式的万用表。 万用表包括信号调理电路，低通滤波器，微处理器，测量电路，均方根（RMS）转换器，显示单元和外部旋转开关。 信号调理电路接收控制信号以选择万用表的操作模式。 低通滤波器电连接到信号调理电路。 微处理器电连接到信号调理电路。 测量电路电连接到微处理器和RMS转换器以测量从RMS转换器输出的信号。 显示单元电连接到微处理器和测量电路。 此外，外部旋转开关可选地连接到微处理器。 通过旋转外部旋转开关以产生控制信号并执行低通滤波模式以将低通滤波器与RMS转换器通信。

公开(公告)号：US08384373B2

公开(公告)日：2013-02-26

申请号：US12659788

申请日：2010-03-22

申请人： Hiroyuki Watanabe ,  Yasushi Katayama ,  Masaya Uemura

发明人： Hiroyuki Watanabe ,  Yasushi Katayama ,  Masaya Uemura

IPC分类号： G01R19/00 ,  G01R1/38

CPC分类号： G01R29/023 ,  H02M3/157

摘要： Disclosed herein is an AC line signal detection device including: a semiconductor integrated circuit; and a conversion section adapted to rectify an AC line signal and convert the rectified signal to an input signal to be fed to the semiconductor integrated circuit, wherein the semiconductor integrated circuit includes a monitoring section adapted to divide the AC line signal into a plurality of voltage ranges with at least one reference voltage proportional to the amplitude of the AC line signal to monitor within which voltage range the AC line signal falls; a measuring section adapted to measure a duration for which the AC line signal remains in each of the voltage ranges; and a determination section adapted to determine, based on the monitoring result of the monitoring section and the measurement result of the measuring section, whether the duration for which the AC line signal remains in each of the voltage ranges exceeds a set time which can be set in advance to make a pass/fail determination on the AC line signal.

摘要翻译： 本发明公开了一种交流线信号检测装置，包括：半导体集成电路; 以及转换部，其适于对AC线信号进行整流，并将整流后的信号转换为输入到半导体集成电路的输入信号，其中，所述半导体集成电路包括适于将所述AC线信号分割为多个电压的监视部 范围具有与AC线信号的幅度成比例的至少一个参考电压，以监视AC线信号在哪个电压范围内下降; 测量部分，适于测量AC线信号保持在每个电压范围内的持续时间; 以及确定部，其适于基于所述监视部的监视结果和所述测量部的测量结果来确定所述AC线信号是否保持在每个所述电压范围内的持续时间是否超过可设定的设定时间 提前对交流线路信号进行通过/失败判定。

公开(公告)号：US08358121B2

公开(公告)日：2013-01-22

申请号：US12356885

申请日：2009-01-21

申请人： Jeffrey C. Hudson ,  Nathaniel J. Wetzel

发明人： Jeffrey C. Hudson ,  Nathaniel J. Wetzel

IPC分类号： G01R1/38

CPC分类号： G01R15/125 ,  G08C17/02 ,  G08C23/04 ,  H04Q9/00 ,  H04Q2209/40

摘要： A multimeter comprising a base unit having at least one test lead terminal. A remote display unit separate from the base unit is also provided. The remote display unit has a display operative to show measured parameters. The multimeter further comprises communication circuitry operative to provide electrical communication between the base unit and the remote display unit. The communication circuitry provides electrical communication in a plurality of alternative communication modes. At least two of the alternative communication modes are preferably wireless communication modes.

摘要翻译： 一种万用表，包括具有至少一个测试引线端子的基座单元。 还提供了与基座分离的远程显示单元。 远程显示单元具有显示测量参数的显示器。 万用表还包括可操作地提供基本单元和远程显示单元之间的电气通信的通信电路。 通信电路提供多种替代通信模式中的电通信。 备选通信模式中的至少两个优选地是无线通信模式。

公开(公告)号：US08237428B2

公开(公告)日：2012-08-07

申请号：US12308302

申请日：2008-03-12

申请人： Stefan Fuchs ,  Marco Graf

发明人： Stefan Fuchs ,  Marco Graf

IPC分类号： G01R1/38

CPC分类号： G01R19/0084 ,  F02D41/2096 ,  F02D41/221 ,  G01R19/2503 ,  H01L41/042

摘要： A circuit system for detecting a time-variable amplitude via an electric potential-difference to be detected. A first potential-difference detection device for detecting the at least one electric potential-difference and for outputting a first potential-difference signal, and a second potential-difference detection device for detecting the at least one electric potential-difference and for outputting a second potential-difference signal are provided. The first potential-difference detection device has a higher time resolution than the second potential-difference detection device, while the second potential-difference detection device has a higher amplitude resolution than the first potential-difference detection device.

摘要翻译： 一种用于经由待检测的电位差检测时变幅度的电路系统。 用于检测所述至少一个电位差并输出第一电位差信号的第一电位差检测装置和用于检测所述至少一个电位差的第二电位差检测装置，以及用于输出第二电位差的第二电位差 提供电位差信号。 第一电位差检测装置具有比第二电位差检测装置更高的时间分辨率，而第二电位差检测装置具有比第一电位差检测装置更高的振幅分辨率。

公开(公告)号：US07654857B2

公开(公告)日：2010-02-02

申请号：US11893092

申请日：2007-08-14

申请人： Terry G. Morey ,  John M. Gilbert ,  Surjit Sanghera ,  Daniel L. Parker ,  Mathew J. Martineau ,  Robert L. Huggins

发明人： Terry G. Morey ,  John M. Gilbert ,  Surjit Sanghera ,  Daniel L. Parker ,  Mathew J. Martineau ,  Robert L. Huggins

IPC分类号： G01R1/38

CPC分类号： G01R1/04 ,  G01R15/125

摘要： A multimeter for testing a plurality of electrical parameters comprises a case having a plurality of test lead jacks. Each of the test lead jacks includes a unitary conductive socket. Preferably, the sockets are made of metal such as brass. A circuit board located in the case has jack conductors in electrical communication with each of the sockets. A jack detection arrangement is adapted to automatically determine whether a plug is inserted into a respective one of the sockets based on a change in electrical characteristics. For example, the jack detection arrangement may include a photonic emitter and a photonic detector situated such that a beam path therebetween is interrupted by insertion of a plug. The case may further have a rotary selector knob for selecting a multimeter function.

摘要翻译： 用于测试多个电参数的万用表包括具有多个测试引线插座的壳体。 每个测试引线插座都包括一个单一的导电插座。 优选地，插座由诸如黄铜的金属制成。 位于壳体中的电路板具有与每个插座电连通的插座导体。 插座检测装置适于基于电特性的变化来自动确定插头是否插入到插座的相应一个中。 例如，插座检测装置可以包括光子发射器和光子检测器，其位置使得它们之间的光束路径被插入插头中断。 该情况还可以具有用于选择万用表功能的旋转选择旋钮。

公开(公告)号：US07339367B2

公开(公告)日：2008-03-04

申请号：US11413990

申请日：2006-04-28

申请人： Dion N. Heisler ,  Nimal K. K. Gamage

发明人： Dion N. Heisler ,  Nimal K. K. Gamage

IPC分类号： G01R1/38

CPC分类号： H04L43/50 ,  H04L41/5009

摘要： An interface module. The interface module includes a probe identification module configured for connection to an identification bus, a probe detect module configured for connection to a detect-control bus, a power control module configured for connection to the detect-control bus, a control and data module configured for connection to a control-data bus, and multiple connectors. Each connector has an associated hot swap circuit. For each connector, if the probe detect module detects connection of that connector to a test probe via connection of that connector to the probe detect module, the probe identification module is configured to enable transfer of an identification label identifying that test probe to that test probe via that connector and the control and data module is configured to enable transfer of control instructions and data between the control-data bus and the test probe via connection of the control and data module to that connector.

摘要翻译： 接口模块 所述接口模块包括被配置为连接到识别总线的探测器识别模块，被配置为连接到检测控制总线的探测器检测模块，被配置为连接到所述检测控制总线的功率控制模块，配置的控制和数据模块 用于连接到控制数据总线和多个连接器。 每个连接器都有一个相关的热插拔电路。 对于每个连接器，如果探头检测模块通过将该连接器连接到探针检测模块来检测该连接器与测试探头的连接，则探头识别模块被配置为能够将识别该测试探针的识别标签传输到该测试探头 通过该连接器，并且控制和数据模块被配置为通过将控制和数据模块连接到该连接器来在控制数据总线和测试探针之间传送控制指令和数据。