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    SYSTEM AND METHOD FOR MONITORING WELDING
    9.
    发明申请
    SYSTEM AND METHOD FOR MONITORING WELDING 审中-公开
    用于监测焊接的系统和方法

    公开(公告)号：US20090283569A1

    公开(公告)日：2009-11-19

    申请号：US12119519

    申请日：2008-05-13

    申请人： Sivaramanivas Ramaswamy ,  Thomas James Batzinger ,  Waseem Ibrahim Faidi ,  Gerhard Splitt ,  Thomas Rudolf Dahmen ,  York Oberdoerfer ,  Werner Roye ,  Johannes Georg Buechler

    发明人： Sivaramanivas Ramaswamy ,  Thomas James Batzinger ,  Waseem Ibrahim Faidi ,  Gerhard Splitt ,  Thomas Rudolf Dahmen ,  York Oberdoerfer ,  Werner Roye ,  Johannes Georg Buechler

    IPC分类号： B23K20/10 ,  G01N29/00

    CPC分类号： B23K11/252 ,  B23K31/125 ,  G01N29/043 ,  G01N2291/0426 ,  G01N2291/103 ,  G01N2291/267

    摘要： A system for monitoring a weld process is provided. The system includes an ultrasonic wave generator adapted to deliver an ultrasonic signal to a target material during a weld operation. The system also includes a pair of ultrasonic receiver elements with opposite directions of polarization relative to each other, the ultrasonic receiver elements configured to receive the ultrasonic signal propagated through the target material. The system further includes an electronic circuit coupled to the pair of ultrasonic receiver elements. The electronic circuit is configured to receive respective signals from the pair of ultrasonic receiver elements; wherein the respective signals comprise the ultrasonic signal and a noise signal. The electronic circuit is also configured to output the ultrasonic signal devoid of the noise signal. The system also includes a signal processor coupled to the electronic circuit, wherein the signal processor is configured to determine a quality level of a weld created during the weld operation by extracting data corresponding to the ultrasonic signal and comparing the data to a profile that corresponds to an acceptable quality level.

    摘要翻译： 提供了一种用于监测焊接过程的系统。 该系统包括适于在焊接操作期间将超声波信号传送到目标材料的超声波发生器。 该系统还包括一对相对于彼此具有相反偏振方向的超声波接收器元件，超声波接收器元件被配置为接收通过目标材料传播的超声波信号。 该系统还包括耦合到该对超声波接收器元件的电子电路。 电子电路被配置为从该对超声波接收器元件接收相应的信号; 其中相应的信号包括超声波信号和噪声信号。 电子电路还被配置为输出没有噪声信号的超声波信号。 该系统还包括耦合到电子电路的信号处理器，其中信号处理器被配置为通过提取与超声信号相对应的数据来确定在焊接操作期间产生的焊缝的质量水平，并将该数据与对应于 可接受的质量水平。

    FLOW SIMULATING CIRCUIT FOR TESTING OF FLOWMETERS
    10.
    发明申请
    FLOW SIMULATING CIRCUIT FOR TESTING OF FLOWMETERS 审中-公开
    流量计流量模拟电路测试

    公开(公告)号：US20090000392A1

    公开(公告)日：2009-01-01

    申请号：US11831996

    申请日：2007-08-01

    申请人： Hua Zhou ,  Yikang Gu ,  Thomas James Batzinger ,  Baoming Huang ,  Xiaolei Shirley Ao ,  Jeffrey Tilden

    发明人： Hua Zhou ,  Yikang Gu ,  Thomas James Batzinger ,  Baoming Huang ,  Xiaolei Shirley Ao ,  Jeffrey Tilden

    IPC分类号： G01F1/20 ,  G01F1/66

    CPC分类号： G01F25/0007 ,  G01F1/667

    摘要： A simulating circuit (2), for testing a transit-time flowmeter (1) according to an embodiment of the invention, comprises an interface circuit (20) connecting with the transit-time flowmeter. The interface circuit receives driving signals from the transit-time flowmeter and generates a trigger signal on a rising or falling edge of the driving signals. An oscillator (21) outputs a clock signal. A delay generator (221) generates a preset time delay. A Digital to Analog Converter (DAC, 25) retrieves preset digitalized waveform. The DAC is enabled by the oscillator on ending of the preset time delay and converts the preset digitalized waveform into analog waveform output. The analog waveform output is sent back to the transit-time flowmeter, and thus a transit time or and a waveform through flowing fluids is simulated.

    摘要翻译： 根据本发明的实施例的用于测试通行时间流量计（1）的模拟电路（2）包括与过渡时间流量计连接的接口电路（20）。 接口电路接收来自通行时流量计的驱动信号，并在驱动信号的上升沿或下降沿产生触发信号。 振荡器（21）输出时钟信号。 延迟发生器（221）产生预设的时间延迟。 数模转换器（DAC，25）检索预设数字化波形。 在预设时间延迟结束时，DAC由振荡器使能，并将预设数字化波形转换为模拟波形输出。 模拟波形输出被发送回通过时间流量计，从而模拟流经流体的通过时间或波形。