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    Multimeter with a meter probe module and phasing probe module capable of wireless communication and proximity measurements
    1.
    发明授权
    Multimeter with a meter probe module and phasing probe module capable of wireless communication and proximity measurements 有权

    公开(公告)号：US12025639B2

    公开(公告)日：2024-07-02

    申请号：US18200494

    申请日：2023-05-22

    申请人： STB Electrical Test Equipment, Inc.

    发明人： Gary Brehm

    IPC分类号： G01R15/12 ,  G01R13/40 ,  G08B5/36

    CPC分类号： G01R15/125 ,  G01R13/402 ,  G08B5/36

    摘要： The invention involves a multimeter with a meter probe module and phasing probe module capable of wireless communication, proximity measurements, and accurately reading phase degrees. The meter probe module and the phasing probe module can communicate wirelessly, via a wired cable interface, or any combination thereof. The meter probe module and phasing probe module have unique radio frequency serial numbers that allow the probe modules to only communicate with its paired partner probe module while ignoring all other probe modules. The multimeter has a measurement point capable of taking direct contact measurements. The multimeter also has a measurement point capable of taking a voltage measurement without directly contacting the object to be measured. This is accomplished by taking voltage readings from the electric field of the air surrounding said object. The improved multimeter may allow an operator to more safely gather accurate information about an object being measured.

    DIGITAL OSCILLOSCOPE HAVING FRACTIONAL CALCULUS OPERATION AND DISPLAY FUNCTION
    2.
    发明申请
    DIGITAL OSCILLOSCOPE HAVING FRACTIONAL CALCULUS OPERATION AND DISPLAY FUNCTION 有权

    公开(公告)号：US20220373577A1

    公开(公告)日：2022-11-24

    申请号：US17515987

    申请日：2021-11-01

    申请人： UNIVERSITY OF ELECTRONIC SCIENCE AND TECHNOLOGY OF CHINA

    发明人： Bo XU ,  Kai CHEN ,  Libing BAI ,  Lulu TIAN ,  Hang GENG ,  Yuhua CHENG ,  Songting ZOU ,  Jia ZHAO ,  Yanjun YAN ,  Xiaoyu HUANG

    IPC分类号： G01R13/40 ,  G01R13/02

    摘要： The present invention provides a system for data mapping and storing in digital three-dimensional oscilloscope, wherein the fixed coefficients, which are calculated according the parameters and settings of a digital oscilloscope, are stored into a fixed coefficient memory CO RAM, the fixed coefficients are outputted to N fractional operation units through N−1 D flip-flop delay units to multiply with the acquired data x(n) and then be accumulated, thus N fractional calculus results are obtained. In this way, N fractional calculus results can be obtained by performing L/N fractional calculus operations. N fractional calculus results are sent to a signal processing and display module, in which they are converted into a display data through a drawing thread, and the display data are sent to LCD for displaying, thus the fractional calculus operation and display of a input signal in a digital oscilloscope is realized.

    Multimeter with a meter probe module and phasing probe module capable of wireless communication and taking measurements proximally
    3.
    发明授权
    Multimeter with a meter probe module and phasing probe module capable of wireless communication and taking measurements proximally 有权

    公开(公告)号：US11175314B2

    公开(公告)日：2021-11-16

    申请号：US16373222

    申请日：2019-04-02

    申请人： STB Electrical Test Equipment, Inc.

    发明人： Gary Brehm

    IPC分类号： G01R15/12 ,  G01R13/40 ,  G08B5/36

    摘要： The invention involves a multimeter with a meter probe module and phasing probe module capable of wireless communication, proximity measurements, and accurately reading phase degrees. The meter probe module and the phasing probe module can communicate wirelessly, via a wired cable interface, or any combination thereof. The meter probe module and phasing probe module have unique radio frequency serial numbers that allow the probe modules to only communicate with its paired partner probe module while ignoring all other probe modules. The multimeter has a measurement point capable of taking direct contact measurements. The multimeter also has a measurement point capable of taking a voltage measurement without directly contacting the object to be measured. This is accomplished by taking voltage readings from the electric field of the air surrounding said object. The improved multimeter may allow an operator to more safely gather accurate information about an object being measured.

    Magneto Optical Current Transducer with Improved Outage Performance
    6.
    发明申请
    Magneto Optical Current Transducer with Improved Outage Performance 有权
    具有改进中断性能的磁光电流传感器

    公开(公告)号：US20110156695A1

    公开(公告)日：2011-06-30

    申请号：US12964392

    申请日：2010-12-09

    申请人： William Verbanets ,  Michael Mendik

    发明人： William Verbanets ,  Michael Mendik

    IPC分类号： G01R13/40

    CPC分类号： G01R15/245 ,  G01R19/00 ,  G01R21/00 ,  G01R22/06

    摘要： A MOCT metering system includes a cutoff module that ensures zero output when values from an optical module fall below a threshold value. The cutoff module includes an RMS to DC converter that drives a comparator. The comparator drives a switch that causes the cutoff module to pass through the measured signal unmodified if above a threshold value and to output a zero voltage signal if below a threshold value.

    摘要翻译： MOCT计量系统包括一个切断模块，当来自光学模块的值低于阈值时，该模块确保零输出。 截止模块包括驱动比较器的RMS至DC转换器。 比较器驱动开关，其使得截止模块如果高于阈值则未经修改地通过测量信号，并且如果低于阈值则输出零电压信号。

    Binary voltage indicator
    7.
    发明申请
    Binary voltage indicator 审中-公开
    二进制电压指示器

    公开(公告)号：US20050225311A1

    公开(公告)日：2005-10-13

    申请号：US10496081

    申请日：2002-11-18

    申请人： Ralf Strumpler ,  Joachim Glatz-Richenbach

    发明人： Ralf Strumpler ,  Joachim Glatz-Richenbach

    IPC分类号： G01R13/40 ,  G01R19/155 ,  G01R19/14

    CPC分类号： G01R19/155 ,  G01R13/40

    摘要： The invention is concerned with a binary voltage indicator for use with high- or medium voltage equipment. The indicator comprises a photoactive layer (5) which changes its reflectivity or emissivity when subjected to an electric field and which is applied directly onto the surface of a conductor. The photoactive layer is based on materials as used for low-voltage displays, such as electrophoretic films.

    摘要翻译： 本发明涉及用于高压或中压设备的二进制电压指示器。 指示器包括光电层（5），其在经受电场时改变其反射率或发射率，并且直接施加到导体的表面上。 光敏层基于用于低电压显示器的材料，例如电泳膜。

    Voltage indicator using serial comparison voltage measurement
    8.
    发明授权
    Voltage indicator using serial comparison voltage measurement 失效
    电压指示器采用串行比较电压测量

    公开(公告)号：US5998985A

    公开(公告)日：1999-12-07

    申请号：US26934

    申请日：1998-02-20

    申请人： Michael F. Gallavan

    发明人： Michael F. Gallavan

    IPC分类号： G01R13/40 ,  G01R19/165 ,  G01R19/25 ,  H03M1/56 ,  G01R19/155

    CPC分类号： G01R19/165 ,  G01R13/405 ,  H03M1/56 ,  G01R19/2503

    摘要： A voltage indicator using a serial or sequential comparison voltage measurement technique. Reference voltages generated by a voltage divider are applied to inputs of a multiplexer which is driven by a counter to select one reference voltage at a time in sequence to be presented via an output terminal to one input of a voltage comparator. An input signal to be measured is applied the other input of the comparator. When the input signal matches or exceeds the reference voltage at the output terminal of the multiplexer, the comparator switches, providing an enable signal to a one-of-N decoder. The one-of-N decoder is also driven by the counter, so that outputs of the decoder and corresponding inputs of the multiplexer are addressed simultaneously. The outputs of the one-of-N decoder are connected to LEDs which indicate the voltage level or magnitude. The voltage input signal may be applied via a conditioning amplifier that scales the input signal and an absolute value amplifier which provides an output in one polarity for comparison purposes. DC voltage polarity is detected and may be indicated by separate LEDs. Additionally, an AC/DC decode logic circuit may be provided to discern between AC and DC input voltages, and provide appropriate indication. While the preferred embodiment contemplates that both nominal AC and DC reference voltages may be provided by the same voltage divider, a gain control signal may be provided to change the gain of the absolute value amplifier by a ratio of .sqroot.2 so that the same reference values may be used for both AC and DC measurements.

    摘要翻译： 使用串行或顺序比较电压测量技术的电压指示器。 由分压器产生的参考电压被施加到由计数器驱动的多路复用器的输入，以依次选择一个参考电压，以通过输出端子提供给电压比较器的一个输入端。 要测量的输入信号被施加到比较器的另一个输入端。 当输入信号匹配或超过多路复用器输出端的参考电压时，比较器开关，向一个N解码器提供使能信号。 一个N解码器也由计数器驱动，使得解码器的输出和多路复用器的相应输入同时被寻址。 一N解码器的输出连接到指示电压电平或幅度的LED。 电压输入信号可以通过调节放大器来施加，该调节放大器缩放输入信号，并且绝对值放大器提供一个极性的输出用于比较目的。 检测到直流电压极性，并且可以由单独的LED指示。 此外，可以提供AC / DC解码逻辑电路以在AC和DC输入电压之间进行辨别，并提供适当的指示。 虽然优选实施例考虑到标称AC和DC参考电压都可以由相同的分压器提供，但是可以提供增益控制信号以通过2ROOT 2的比例来改变绝对值放大器的增益，使得相同的参考值 可用于交流和直流测量。

    Method and apparatus for improving time variant image details on a raster display
    9.
    发明授权
    Method and apparatus for improving time variant image details on a raster display 失效
    用于在光栅显示器上改善时间变化图像细节的方法和装置

    公开(公告)号：US5929842A

    公开(公告)日：1999-07-27

    申请号：US692833

    申请日：1996-07-31

    申请人： Maarten Vertregt ,  William Rey

    发明人： Maarten Vertregt ,  William Rey

    IPC分类号： G01R13/02 ,  G01R13/34 ,  G01R13/40 ,  G09G1/16 ,  B06F7/00

    CPC分类号： G01R13/403 ,  G01R13/02 ,  G09G1/162 ,  G01R13/342

    摘要： A method of displaying digital samples with enhanced image details on a raster display using a limited set of brightness values is provided. Digital samples are interpolated and stored as pixel information in high resolution intensity memory. An adaptive mapping process maps the high resolution intensity information to low intensity brightness information in a manner so as to maximize image details. An equal number of brightness levels from light to dark are allocated in each column along the sweep. An adaptive recombination process combines past and present brightness information in a manner that best preserves image details when the temporal behavior of the display image is changing. A raster display device is employed to display the image which is stored in the display memory as pixels arranged by row and column.

    摘要翻译： 提供了一种使用有限的亮度值在光栅显示器上显示具有增强图像细节的数字样本的方法。 数字样本被内插并存储为高分辨率强度存储器中的像素信息。 自适应映射处理以高分辨率强度信息以低强度亮度信息的方式映射，以使图像细节最大化。 沿着扫描在每列中分配从亮到暗的相等数量的亮度级别。 自适应重组过程以过去和当前的亮度信息结合，当显示图像的时间行为正在改变时，最佳地保持图像细节。 采用光栅显示装置将存储在显示存储器中的图像显示为以行和列排列的像素。