Feed-through for GWR measurements in tanks
    11.
    发明授权
    Feed-through for GWR measurements in tanks 有权
    在坦克中进行GWR测量的直通

    公开(公告)号:US09476753B2

    公开(公告)日:2016-10-25

    申请号:US14229216

    申请日:2014-03-28

    CPC classification number: G01F23/284 G01S7/02

    Abstract: A coaxial feed-through device (feed-through) for coupling a received process connection to a storage tank (tank) including an inner electrical conductor (probe), an outer electrical conductor; and a dielectric sleeve disposed between the probe and the outer electrical conductor. The dielectric sleeve is configured to provide an upper coaxial transmission line segment (upper CTL segment) providing a substantially 50 ohm impedance and a lower coaxial transmission line segment (lower CTL segment) which includes one or more sub-segments having an impedance that is at least forty (40%) percent higher as compared to the substantially 50 ohm impedance.

    Abstract translation: 用于将接收到的过程连接与包括内部电导体(探针),外部电导体的储罐(罐)连接的同轴馈通装置(馈通); 以及设置在探针和外部电导体之间的电介质套筒。 电介质套筒被配置为提供提供基本上50欧姆阻抗的上同轴传输线段(上CTL段)和下同轴传输线段(下CTL段),其包括一个或多个阻抗为 与基本上50欧姆阻抗相比,最少40(40%)%。

    Apparatus and method for adjusting guided wave radar pulse width to optimize measurements

    公开(公告)号:US10310056B2

    公开(公告)日:2019-06-04

    申请号:US15008110

    申请日:2016-01-27

    Abstract: An apparatus includes at least one processing device configured to determine an optimal pulse width for obtaining level measurements associated with material in a tank. The at least one processing device is also configured to generate a control signal that causes a transmitter of a guided wave radar (GWR) to transmit a signal having the optimal pulse width. The at least one processing device is further configured to send the control signal to the transmitter. The at least one processing device can also be configured to alter a length of the optimal pulse width in order to reduce false echoes detected by the GWR, reduce a size of an upper dead zone of the GWR, and/or detect a change of impedance to identify a fault of a process connector in the GWR.

    Bulk acoustic wave (BAW) sensors for liquid level measurements

    公开(公告)号:US10168198B2

    公开(公告)日:2019-01-01

    申请号:US14577487

    申请日:2014-12-19

    Abstract: A method for sensing at least one level parameter of at least one liquid in a tank. At least one bulk acoustic wave (BAW) sensor is positioned inside the tank. Electrodes of the BAW sensor are at least switchably connected to a positive feedback loop across an amplifier to provide an electronic oscillator. At least one acoustic viscosity measurement is determined from an output of the electronic oscillator, wherein the output of the electronic oscillator is different when the BAW sensor contacts the liquid as compared to when the BAW sensor contacts air. The level parameter is determined from the acoustic viscosity measurement.

    Sensor device with helical antenna and related system and method

    公开(公告)号:US09985356B2

    公开(公告)日:2018-05-29

    申请号:US15221529

    申请日:2016-07-27

    CPC classification number: H01Q11/08 H01Q1/3233 H01Q1/38

    Abstract: An apparatus includes a sensor that receives a first electrical signal and provides a second electrical signal in response to the first electrical signal. The second electrical signal is based on at least one parameter monitored by the sensor. The apparatus also includes an antenna that converts first wireless signals into the first electrical signal and that converts the second electrical signal into second wireless signals. The antenna includes a substrate, conductive traces, and conductive interconnects. The conductive traces are formed on first and second surfaces of the substrate. The conductive interconnects couple the conductive traces, and the conductive interconnects and the conductive traces form at least one helical arm of the antenna. The conductive traces could be formed in various ways, such as by etching or direct printing. The conductive interconnects could also be formed in various ways, such as by filling vias in the substrate or direct printing.

    APPARATUS AND METHOD FOR ADJUSTING GUIDED WAVE RADAR PULSE WIDTH TO OPTIMIZE MEASUREMENTS
    17.
    发明申请
    APPARATUS AND METHOD FOR ADJUSTING GUIDED WAVE RADAR PULSE WIDTH TO OPTIMIZE MEASUREMENTS 审中-公开
    用于调整指导波形雷达脉冲宽度以优化测量的装置和方法

    公开(公告)号:US20160266240A1

    公开(公告)日:2016-09-15

    申请号:US15008110

    申请日:2016-01-27

    Abstract: An apparatus includes at least one processing device configured to determine an optimal pulse width for obtaining level measurements associated with material in a tank. The at least one processing device is also configured to generate a control signal that causes a transmitter of a guided wave radar (GWR) to transmit a signal having the optimal pulse width. The at least one processing device is further configured to send the control signal to the transmitter. The at least one processing device can also be configured to alter a length of the optimal pulse width in order to reduce false echoes detected by the GWR, reduce a size of an upper dead zone of the GWR, and/or detect a change of impedance to identify a fault of a process connector in the GWR.

    Abstract translation: 一种装置包括至少一个处理装置,其配置成确定用于获得与罐中的材料相关联的液位测量的最佳脉冲宽度。 所述至少一个处理装置还被配置为产生使导波雷达(GWR)的发射机发射具有最佳脉冲宽度的信号的控制信号。 所述至少一个处理装置还被配置为将所述控制信号发送到所述发射机。 至少一个处理装置还可以被配置为改变最佳脉冲宽度的长度,以便减少由GWR检测到的假回波,减小GWR的上死区的大小和/或检测阻抗的变化 以识别GWR中的过程连接器的故障。

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